Articles de revues : « Virtual Coaching System (VCS) »

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Kotane, Inta. « CONCEPT OF VIRTUAL CURRENCIES IN MODERN ECONOMIES ». Latgale National Economy Research 1, n^o 10 (18 septembre 2018) : 63. http://dx.doi.org/10.17770/lner2018vol1.10.3605.

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In recent years, development of blockchain technology and virtual currencies (VCs) have been followed not just by the media and industry professionals all over the world – there rarely could be found a person who has not ever heard the term ‘bitcoin’. Despite the popularity of VCs, there is a lack of comprehensible information in the Latvian language about what the virtual currency (VC) is, as well the concepts of digital and VCs are often misused as synonyms. The research is based on the analysis of special literature and scientific publications on the system of VCs. The aim of the research: to explore the concept of VCs in the modern economy. General scientific research methods are used in the research: the method of monographic or descriptive research, the comparative analysis method for studying the concept of VCs, the classification, legal regulation, and future development possibilities. The results of the research show that VCs are a type of digital currency, though, the opposite statement is not correct. Thus, all VCs are digital, but not all digital currencies are virtual. Exploration of the legal framework of VCs suggests that it is at an early stage of development. With the increasing number of VCs and along with strengthening of the legal framework of VCs, the issue of possible directions of the future development of VCs is raised. Two points of view dominate: the future currency or payment system, for example, smart contracts.

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Sitzenfrei, R., M. Möderl et W. Rauch. « Graph-based approach for generating virtual water distribution systems in the software VIBe ». Water Supply 10, n^o 6 (1 décembre 2010) : 923–32. http://dx.doi.org/10.2166/ws.2010.579.

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Application of virtual case studies (VCS) is a well established technique in environmental engineering to test measures, approaches, models or software. However, preparation of VCS for an infrastructure network is a tedious task. In literature, approaches can be found which generate very simplified VCS, which are only partly comparable with real world case studies. VCS which are more comparable with real world case studies can be generated with the software VIBe (Virtual Infrastructure Benchmarking). With VIBe, a methodology for algorithmic generation of VCS with varying spatially distributed boundary conditions was presented. Therein the investigated infrastructure is constructed accordingly to the state-of-the-art design rules meeting the requirements of the generated virtual urban environment. In this paper the module for the generation of water distribution systems (WDS) is presented. The generated WDS are set in context with data from real world WDS and systematically investigated. A set of 75,000 virtual WDS with varying properties is characterized and stochastically analysed in order to identify system coherences e.g. impact of mesh degree on hydraulic, water quality performance and costs. An example involving the systematic investigation of a simple pipe sizing algorithm with the set of 75,000 WDS is shown.

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Lete, Nerea, Andoni Beristain et Alejandro García-Alonso. « Survey on virtual coaching for older adults ». Health Informatics Journal 26, n^o 4 (1 août 2020) : 3231–49. http://dx.doi.org/10.1177/1460458220926894.

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Virtual coaching has emerged as a promising solution to extend independent living for older adults. A virtual coach system is an always-attentive personalized system that continuously monitors user’s activity and surroundings and delivers interventions – that is, intentional messages – in the appropriate moment. This article presents a survey of different approaches in virtual coaching for older adults, from the less technically supported tools to the latest developments and future avenues for research. It focuses on the technical aspects, especially on software architectures, user interaction and coaching personalization. Nevertheless, some aspects from the fields of personality/social psychology are also presented in the context of coaching strategies. Coaching is considered holistically, including matters such as physical and cognitive training, nutrition, social interaction and mood.

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Jamali H., Ehsan, Masafumi Katou, Kenji Tara, Eiichi Asakawa et Hitoshi Mikada. « Mirror reverse time migration using vertical cable seismic data for methane hydrate exploration ». GEOPHYSICS 84, n^o 6 (1 novembre 2019) : B447—B460. http://dx.doi.org/10.1190/geo2018-0422.1.

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Gas hydrates are located in the permafrost and in deepwater shallow sediments, where low temperature and high pressure satisfy the stability conditions of methane clathrates to remain as solid compounds. Hydrates are found in a form of fine-layered or altered-layered structure with hiatuses and necessitate high-resolution surveys, which may not be achieved by conventional marine acquisition using towed streamers. We have developed a recent case study in which the vertical cable seismic (VCS) method has been used for high-resolution subseafloor imaging using a set of buoyed vertical-arrayed receivers that are anchored to the seafloor. The observation close to the target in the deepwater environment provides a higher signal-to-noise ratio and higher resolution. The primary reflections, however, could not achieve reliable depth images in the data processing due to their limited subsurface coverage. We used a reverse time migration (RTM) implementation of mirror imaging to extend the spatial subsurface coverage by using receiver ghost reflections. Because conventional velocity analysis methods are not applicable to the VCS survey due to the asymmetrical reflection path between the source and receiver, we implemented seismic interferometry and generated virtual surface seismic data from VCS data for velocity analysis. To preserve the resolution, amplitudes, and phase characteristics, we applied mirror RTM on the ghost reflections in the original VCS data rather than imaging the virtual data. The introduced case study using a VCS survey for identifying the methane hydrate system of the Umitaka Spur in the Sea of Japan led to high-resolution images, which suggest that a large gas chimney exists beneath a pockmark and is responsible for transferring methane gas from a deep hydrocarbon source to the shallow sediments. A bottom-simulating reflector as the base of the gas hydrate stability zone was also imaged.

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Belkhouche, F., et B. Bendjilali. « Dynamic collision risk modeling under uncertainty ». Robotica 31, n^o 4 (3 octobre 2012) : 525–37. http://dx.doi.org/10.1017/s0263574712000550.

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SUMMARYThis paper introduces a probabilistic model for collision risk assessment between moving vehicles. The uncertainties in the states and the geometric variables obtained from the sensory system are characterized by probability density functions. Given the states and their uncertainties, the goal is to determine the probability of collision in a dynamic environment. Two approaches are discussed: (1) The virtual configuration space (VCS), and (2) the rates of change of the visibility angles. The VCS is a transformation of observer that reduces collision detection with a moving object to collision detection with a stationary object. This approach allows to create simple geometric collision cones. Error propagation models are used to solve the problem when going from the VCS to the configuration space. The second approach derives the collision conditions in terms of the rate of change of the limit visibility angles. The probability of collision is then calculated. A comparison between the two methods is carried out. Results are illustrated using simulation, including Monte Carlo simulation.

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Adamczyk, Michal, et Teresa Orlowska-Kowalska. « Virtual Current Sensor in the Fault-Tolerant Field-Oriented Control Structure of an Induction Motor Drive ». Sensors 19, n^o 22 (15 novembre 2019) : 4979. http://dx.doi.org/10.3390/s19224979.

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Designing electrical drives resistant to the failures of chosen sensors has recently become increasingly popular due to the possibility of their use in fault-tolerant control (FTC) systems including drives for electric vehicles. In this article, a virtual current sensor (VCS) based on an algorithmic method for the reconstruction of the induction motor (IM) phase currents after current sensor faults was proposed. This stator current estimator is based only on the measurements of the DC-bus voltage in the intermediate circuit of the voltage-source inverter (VSI) and a rotor speed. This proposal is dedicated to fault-tolerant vector controlled IM drives, where it is necessary to switch to scalar control as a result of damage to the current sensors. The proposed VCS allows further uninterrupted operation of the direct rotor-field oriented control (DRFOC) of the induction motor drive. The stator current estimator has been presented in the form of equations, enabling its practical implementation in a microprocessor system. Simulation studies of the proposed algorithm in an open and closed-loop DRFOC structure are presented under different operation conditions of the drive system. The experimental verification of the proposed method is also presented and the accuracy of the stator current estimation algorithm is analyzed under various operating conditions of the drive system.

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Little, Bob. « Virtual value soars for sales-related skills ». Industrial and Commercial Training 46, n^o 5 (1 juillet 2014) : 265–69. http://dx.doi.org/10.1108/ict-02-2014-0009.

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Purpose – The purpose of this paper is to outline an unusual – and online-based – approach to sales and negotiation training and coaching. Design/methodology/approach – Interviews with organisations involved, augmented with case studies. Findings – The “Learn, Implement, Support” method of developing sales and negotiating skills is effective. It combats, cost effectively, the criticism that 30 per cent of all learning is forgotten within 30 days of receiving training unless it is reinforced in a practical way. Practical implications – Organisations of all sizes – not just global multinationals – can now increase productivity and profitability from the online delivery of relevant learning materials, followed immediately by virtual coaching and support for a period of at least 12 months. Social implications – People can learn how to sell products and services more effectively and efficiently, via online-delivered learning and coaching, which contains a high degree of video. Originality/value – Organisations of all sizes – not just global multinationals – can now experience and benefit from the knowledge, skills and experience of a master-performer in the fields of sales and negotiation, thanks to the advent of a system of online learning delivery followed by virtual coaching.

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Yang, Guide, Yuanping Zhou et Wenlong Xia. « Performance Optimization for Overloaded MIMO Systems with Virtual Channel Approach ». Wireless Communications and Mobile Computing 2018 (2018) : 1–6. http://dx.doi.org/10.1155/2018/9651378.

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In this letter, we propose a virtual channel (VC) optimization approach with a closed-loop and adaptive scheme for overloaded MIMO systems. With this approach, each input data stream goes through a VC which is generated at the transmitter; then it is transmitted to a receiver through the actual wireless channels. The VCs are concatenated with the actual wireless channels. Through VC optimization, the values of which can be adjusted to reduce the channel correlation, leading to a much improved system performance. Compared to the conventional overloaded MIMO systems, the overloaded MIMO systems with this approach can achieve significantly better performances in terms of the system capacity and symbol error rate (SER). The method that uses genetic algorithm (GA) for finding the optimal VC vector is described. Simulation results illustrate the effectiveness of the proposed approach.

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Chuang, Huan-Ming, Chien-Ku Lin, Da-Ren Chen et You-Shyang Chen. « Evolving MCDM Applications Using Hybrid Expert-Based ISM and DEMATEL Models : An Example of Sustainable Ecotourism ». Scientific World Journal 2013 (2013) : 1–18. http://dx.doi.org/10.1155/2013/751728.

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Ecological degradation is an escalating global threat. Increasingly, people are expressing awareness and priority for concerns about environmental problems surrounding them. Environmental protection issues are highlighted. An appropriate information technology tool, the growing popular social network system (virtual community, VC), facilitates public education and engagement with applications for existent problems effectively. Particularly, the exploration of related involvement behavior of VC member engagement is an interesting topic. Nevertheless, member engagement processes comprise interrelated sub-processes that reflect an interactive experience within VCs as well as the value co-creation model. To address the top-focused ecotourism VCs, this study presents an application of a hybrid expert-based ISM model and DEMATEL model based on multi-criteria decision making tools to investigate the complex multidimensional and dynamic nature of member engagement. Our research findings provide insightful managerial implications and suggest that the viral marketing of ecotourism protection is concerned with practitioners and academicians alike.

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Vázquez, Alain, Asier López Zorrilla, Javier Mikel Olaso et María Inés Torres. « Dialogue Management and Language Generation for a Robust Conversational Virtual Coach : Validation and User Study ». Sensors 23, n^o 3 (27 janvier 2023) : 1423. http://dx.doi.org/10.3390/s23031423.

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Designing human–machine interactive systems requires cooperation between different disciplines is required. In this work, we present a Dialogue Manager and a Language Generator that are the core modules of a Voice-based Spoken Dialogue System (SDS) capable of carrying out challenging, long and complex coaching conversations. We also develop an efficient integration procedure of the whole system that will act as an intelligent and robust Virtual Coach. The coaching task significantly differs from the classical applications of SDSs, resulting in a much higher degree of complexity and difficulty. The Virtual Coach has been successfully tested and validated in a user study with independent elderly, in three different countries with three different languages and cultures: Spain, France and Norway.

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Justo, Raquel, Leila Ben Letaifa, Cristina Palmero, Eduardo Gonzalez-Fraile, Anna Torp Johansen, Alain Vázquez, Gennaro Cordasco et al. « Analysis of the interaction between elderly people and a simulated virtual coach ». Journal of Ambient Intelligence and Humanized Computing 11, n^o 12 (22 mai 2020) : 6125–40. http://dx.doi.org/10.1007/s12652-020-01983-3.

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AbstractThe EMPATHIC project develops and validates new interaction paradigms for personalized virtual coaches (VC) to promote healthy and independent aging. To this end, the work presented in this paper is aimed to analyze the interaction between the EMPATHIC-VC and the users. One of the goals of the project is to ensure an end-user driven design, involving senior users from the beginning and during each phase of the project. Thus, the paper focuses on some sessions where the seniors carried out interactions with a Wizard of Oz driven, simulated system. A coaching strategy based on the GROW model was used throughout these sessions so as to guide interactions and engage the elderly with the goals of the project. In this interaction framework, both the human and the system behavior were analyzed. The way the wizard implements the GROW coaching strategy is a key aspect of the system behavior during the interaction. The language used by the virtual agent as well as his or her physical aspect are also important cues that were analyzed. Regarding the user behavior, the vocal communication provides information about the speaker’s emotional status, that is closely related to human behavior and which can be extracted from the speech and language analysis. In the same way, the analysis of the facial expression, gazes and gestures can provide information on the non verbal human communication even when the user is not talking. In addition, in order to engage senior users, their preferences and likes had to be considered. To this end, the effect of the VC on the users was gathered by means of direct questionnaires. These analyses have shown a positive and calm behavior of users when interacting with the simulated virtual coach as well as some difficulties of the system to develop the proposed coaching strategy.

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Tropea, Peppino, Hannes Schlieter, Irma Sterpi, Elda Judica, Kai Gand, Massimo Caprino, Inigo Gabilondo et al. « Rehabilitation, the Great Absentee of Virtual Coaching in Medical Care : Scoping Review ». Journal of Medical Internet Research 21, n^o 10 (1 octobre 2019) : e12805. http://dx.doi.org/10.2196/12805.

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Background In the last few years, several studies have focused on describing and understanding how virtual coaches (ie, coaching program or smart device aiming to provide coaching support through a variety of application contexts) could be key drivers for health promotion in home care settings. As there has been enormous technological progress in the field of artificial intelligence and data processing in the past decade, the use of virtual coaches gains an augmented attention in the considerations of medical innovations. Objective This scoping review aimed at providing an overview of the applications of a virtual coach in the clinical field. In particular, the review focused on the papers that provide tangible information for coaching activities with an active implication for engaging and guiding patients who have an ongoing plan of care. Methods We aimed to investigate the use of the term virtual coach in the clinical field performing a methodical review of the relevant literature indexed on PubMed, Scopus, and Embase databases to find virtual coach papers focused on specific activities dealing with clinical or medical contexts, excluding those aimed at surgical settings or electronic learning purposes. Results After a careful revision of the inclusion and exclusion criteria, 46 records were selected for the full-text review. Most of the identified articles directly or indirectly addressed the topic of physical activity. Some papers were focused on the use of virtual coaching (VC) to manage overweight or nutritional issues. Other papers dealt with technological interfaces to facilitate interactions with patients suffering from different chronic clinical conditions such as heart failure, chronic obstructive pulmonary disease, depression, and chronic pain. Conclusions Although physical activity is a healthy practice that is most encouraged by a virtual coach system, in the current scenario, rehabilitation is the great absentee. This paper gives an overview of the tangible applications of this tool in the medical field and may inspire new ideas for future research on VC.

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Pedersen, Agnethe N., Morten Borup, Annette Brink-Kjær, Lasse E. Christiansen et Peter S. Mikkelsen. « Living and Prototyping Digital Twins for Urban Water Systems : Towards Multi-Purpose Value Creation Using Models and Sensors ». Water 13, n^o 5 (25 février 2021) : 592. http://dx.doi.org/10.3390/w13050592.

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In this paper, we review the emerging concept of digital twins (DTs) for urban water systems (UWS) based on the literature, stakeholder interviews and analyzing the current DT implementation process in the utility company VCS Denmark (VCS). Here, DTs for UWS are placed in the context of DTs at the component, unit process/operation or hydraulic structure, treatment plant, system, city, and societal levels. A UWS DT is characterized as a systematic virtual representation of the elements and dynamics of the physical system, organized in a star-structure with a set of features connected by data links that are based on standards for open data. This allows the overall functionality to be broken down into smaller, tangible units (features), enabling microservices that communicate via data links to emerge (the most central feature), facilitated by application programing interfaces (APIs). Coupled to the physical system, simulation models and advanced analytics are among the most important features. We propose distinguishing between living and prototyping DTs, where the term “living” refers to coupling observations from an ever-changing physical twin (which may change with, e.g., urban growth) with a simulation model, through a data link connecting the two. A living DT is thus a near real-time representation of an UWS and can be used for operational and control purposes. A prototyping DT represents a scenario for the system without direct coupling to real-time observations, which can be used for design or planning. By acknowledging that different DTs exist, it is possible to identify the value-creation from DTs achieved by different end-users inside and outside a utility organization. Analyzing the DT workflow in VCS shows that a DT must be multifunctional, updateable, and adjustable to support potential value creation across the utility company. This study helps clarify key DT terminology for UWS and identifies steps to create a DT by building upon digital ecosystems (DEs) and open standards for data.

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Premchander, Dr Tudi. « Construction of Network Security enforcement Virtual Simulation Experiment and Teaching Platform ». International Journal for Research in Applied Science and Engineering Technology 10, n^o 5 (31 mai 2022) : 2028–32. http://dx.doi.org/10.22214/ijraset.2022.42744.

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Abstract: In view of the issues in virtual simulation experiment teaching of network security enforcement, this paper analyzes the need of construction of the virtual simulation experiment teaching platform, that expounds the construction content of virtual simulation experiment platform from 3 aspects of virtual simulation course system, experimental area and teaching mode. Network security enforcement virtual simulation experiment and teaching platform is made with 3 core experimental modules of network security scene enforcement, electronic data scene forensics, and investigation of cyber-crime cases. The coaching of students’ higher order thinking and actual combat ability is reinforced publically security schools. Keywords: Virtual simulation, Experimental teaching platform, Network security law enforcement.

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Zheng, Z. Kevin, Nandan Sarkar, Amy Swanson, Amy Weitlauf, Zachary Warren et Nilanjan Sarkar. « CheerBrush : A Novel Interactive Augmented Reality Coaching System for Toothbrushing Skills in Children with Autism Spectrum Disorder ». ACM Transactions on Accessible Computing 14, n^o 4 (31 décembre 2021) : 1–20. http://dx.doi.org/10.1145/3481642.

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Autism Spectrum Disorder (ASD) is a common neurodevelopmental disorder that impacts one in every 54 children in the United States. Some children with ASD have learning and fine motor skill challenges that contribute to difficulties completing daily living tasks such as toothbrushing. Lack of toothbrushing skills may cause increased need for dental care and negative social feedback from peers. Technology based intelligent support systems offer the advantages of being accessible, engaging, and cost-effective. In this work, we present a novel interactive augmented reality coaching system, CheerBrush, to improve the toothbrushing skills of children with ASD. CheerBrush allows children to manipulate virtual objects like a toothbrush and toothpaste with their actual hand motions to practice the steps of toothbrushing. The virtual tasks of CheerBrush demonstrate these steps using audio and visual cues, while also showing the brushing process through a virtual avatar. CheerBrush also assesses toothbrushing skills with a custom designed mechatronic toothbrush to evaluate the system's coaching effectiveness. A feasibility study with 12 children (six children with ASD and six typically developing children) was conducted to evaluate the acceptability and effectiveness of CheerBrush. The data showed improvements in the toothbrushing motions and reduced stress for the children in the post-test. CheerBrush detects real-time movement of children and interacts with them by augmented reality, feedback and multimodal hints. We believe that CheerBrush has the potential to provide a low-cost, engaging and, beneficial intelligent support system to improve the toothbrushing skills of children with ASD.

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Fadhil, Ahmed, Yunlong Wang et Harald Reiterer. « Assistive Conversational Agent for Health Coaching : A Validation Study ». Methods of Information in Medicine 58, n^o 01 (22 mai 2019) : 009–23. http://dx.doi.org/10.1055/s-0039-1688757.

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Objective Poor lifestyle represents a health risk factor and is the leading cause of morbidity and chronic conditions. The impact of poor lifestyle can be significantly altered by individual's behavioral modification. Although there are abundant lifestyle promotion applications and tools, they are still limited in providing tailored social support that goes beyond their predefined functionalities. In addition, virtual coaching approaches are still unable to handle user emotional needs. Our approach presents a human–virtual agent mediated system that leverages the conversational agent to handle menial caregiver's works by engaging users (e.g., patients) in a conversation with the conversational agent. The dialog used a natural conversation to interact with users, delivered by the conversational agent and handled with a finite state machine automaton. Our research differs from existing approaches that replace a human coach with a fully automated assistant on user support. The methodology allows users to interact with the technology and access health-related interventions. To assist physicians, the conversational agent gives weighting to user's adherence, based on prior defined conditions. Materials and Methods This article describes the design and validation of CoachAI, a conversational agent-assisted health coaching system to support health intervention delivery to individuals or groups. CoachAI instantiates a text-based health care conversational agent system that bridges the remote human coach and the users. Results We will discuss our approach and highlight the outcome of a 1-month validation study on physical activity, healthy diet, and stress coping. The study validates technology aspects of our human–virtual agent mediated health coaching system. We present the intervention settings and findings from the study. In addition, we present some user-experience validation results gathered during or after the experimentation. Conclusions The study provided a set of dimensions when building a human–conversational agent powered health intervention tool. The results provided interesting insights when using human–conversational agent mediated approach in health coaching systems. The findings revealed that users who were highly engaged were also more adherent to conversational-agent activities. This research made key contributions to the literature on techniques in providing social, yet tailored health coaching support: (1) identifying habitual patterns to understand user preferences; (2) the role of a conversational agent in delivering health promoting microactivities; (3) building the technology while adhering to individuals' daily messaging routine; and (4) a socio-technical system that fits with the role of conversational agent as an assistive component. Future Work Future improvements will consider building the activity recommender based on users' interaction data and integrating users' dietary pattern and emotional wellbeing into the initial user clustering by leveraging information and communication technology approaches (e.g., machine learning). We will integrate a sentiment analysis capability to gather further data about individuals and report these data to the caregiver.

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Martinho, Diogo, Vítor Crista, João Carneiro, Juan Manuel Corchado et Goreti Marreiros. « An Intelligent Coaching Prototype for Elderly Care ». Electronics 11, n^o 3 (3 février 2022) : 460. http://dx.doi.org/10.3390/electronics11030460.

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The world ageing problem is prompting new sustainable ways to support elderly people. As such, it is important to promote personalized and intelligent ways to assure the active and healthy ageing of the population. Technological breakthroughs have led to the development of personalized healthcare systems, capable of monitoring and providing feedback on different aspects that can improve the health of the elderly person. Furthermore, defining motivational strategies to persuade the elderly person to be healthier and stay connected to such systems is also fundamental. In this work, a coaching system is presented, especially designed to support elderly people and motivate them to pursue healthier ways of living. To do this, a coaching application is developed using both a cognitive virtual assistant to directly interact with the elderly person and provide feedback on his/her current health condition, and several gamification techniques to motivate the elderly person to stay engaged with the application. Additionally, a set of simulations were performed to validate the proposed system in terms of the support and feedback provided to the user according to his progress, and through interactions with the cognitive assistant.

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Boussaha, Karima, et Raouf Amir Boussouf. « A Computer-Supported Collaborative Coaching System With Novel Algorithm for Forming Groups ». International Journal of Virtual and Personal Learning Environments 12, n^o 1 (janvier 2022) : 1–27. http://dx.doi.org/10.4018/ijvple.285598.

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Several researchers studied the impact of collaboration between the learners, but few studies have been carried out on the impact of collaboration between teachers. In the previous work, the authors have studied the impact of the collaboration among the learners with a specific collaborative CEHL(K. Boussaha et al.,2015). In this work, the authors focused on the impact of collaboration on both teachers and learners. This paper aims to present a Computer-Supported Collaborative Coaching System called C.S. C.C.S. This system aims to create a virtual space based on the exchange of information and experiences between pre-experienced teachers to help new recruits or those who have difficulties and try to encourage, motivate, and provide them with needed experiences to help them escape isolation and use their solid information to guide their learners. To achieve the main task of our theme which is collaboration, we adopted the concept of groups. To demonstrate the effectiveness of the developed system an experiment was conducted. The results were highly satisfying and very encouraging.

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Khabeev, I. A., V. A. Tsarenko, S. I. Khabeev, V. S. Chekhmarev et D. V. Gruzenkin. « Development and implementation of X-ray fluorescence technique for gold determination in jewelry alloys at the analytical center of the JSC «Krastsvetmet» ». Industrial laboratory. Diagnostics of materials 86, n^o 6 (22 juin 2020) : 14–23. http://dx.doi.org/10.26896/1028-6861-2020-86-6-14-23.

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A technique of the X-ray fluorescence analysis (XRF) based on a linear regression providing correlation between the gold content in the sample and radiation intensities of the elements of the analyzed alloy is developed at the analytical center of the JSC «Krastsvetmet» (laboratory of X-ray spectral analysis) to increase the rapidity of gold determination in gold-based alloys. The regression equation chosen by the methods including the influencing factor (contributor) and estimating correlation between the disparities and influencing factor takes into account the effect of such elements as Ag, Cu, Zn, Ni, and Pd on the gold line intensity. Virtual calibration samples (VCS) — the results of the analysis of real samples (X-ray line intensities of elements and gold values obtained by the assay method) taken from electronic database (DB) are used to form a system of linear algebraic equations (SLAE) which is to be solved for determination the desired linear regression coefficients. VCS for which the line intensities of the elements are close to those measured for the analyzed sample are selected from the database using a specific filter: the filter value is determined for each of the elements (metals) in the sample. The developed and integrated into the laboratory information system (LIMS) multi-version software (MVS) for solving SLAE includes several algorithms implemented in various programming languages. The use of the presented methodology significantly reduces the time of analysis. The error of gold determination does not exceed 0.13% which is comparable with that in the assay method.

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Munawar, Saima, Saba Khalil Toor, Muhammad Aslam et Esma Aimeur. « PACA-ITS : A Multi-Agent System for Intelligent Virtual Laboratory Courses ». Applied Sciences 9, n^o 23 (25 novembre 2019) : 5084. http://dx.doi.org/10.3390/app9235084.

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This paper describes an intensive design leading to the implementation of an intelligent lab companion (ILC) agent for an intelligent virtual laboratory (IVL) platform. An IVL enables virtual labs (VL) to be used as online research laboratories, thereby facilitating and improving the analytical skills of students using agent technology. A multi-agent system enhances the capability of the learning system and solves students’ problems automatically. To ensure an exhaustive Agent Unified Modeling Language (AUML) design, identification of the agents’ types and responsibilities on well-organized AUML strategies is carried out. This work also traces the design challenge of IVL modeling and the ILC agent functionality of six basic agents: the practical coaching agent (PCA), practical dispatcher agent (PDA), practical interaction and coordination agent (PICA), practical expert agent (PEA), practical knowledge management agent (PKMA), and practical inspection agent (PIA). Furthermore, this modeling technique is compatible with ontology mapping based on an enabling technology using the Java Agent Development Framework (JADE), Cognitive Tutor Authoring Tools (CTAT), and Protégé platform integration. The potential Java Expert System Shell (Jess) programming implements the cognitive model algorithm criteria that are applied to measure progress through the CTAT for C++ programming concept task on IVL and successfully deployed on the TutorShop web server for evaluation. The results are estimated through the learning curve to assess the preceding knowledge, error rate, and performance profiler to engage cognitive Jess agent efficiency as well as practicable and active decisions to improve student learning.

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Hurmuz, Marian Z. M., Stephanie M. Jansen-Kosterink, Tessa Beinema, Katrien Fischer, Harm op den Akker et Hermie J. Hermens. « Evaluation of a virtual coaching system eHealth intervention : A mixed methods observational cohort study in the Netherlands ». Internet Interventions 27 (mars 2022) : 100501. http://dx.doi.org/10.1016/j.invent.2022.100501.

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McTear, Michael, Kristiina Jokinen, Mirza Mohtashim Alam, Qasid Saleem, Giulio Napolitano, Florian Szczepaniak, Mossaab Hariz et al. « Interaction with a Virtual Coach for Active and Healthy Ageing ». Sensors 23, n^o 5 (2 mars 2023) : 2748. http://dx.doi.org/10.3390/s23052748.

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Since life expectancy has increased significantly over the past century, society is being forced to discover innovative ways to support active aging and elderly care. The e-VITA project, which receives funding from both the European Union and Japan, is built on a cutting edge method of virtual coaching that focuses on the key areas of active and healthy aging. The requirements for the virtual coach were ascertained through a process of participatory design in workshops, focus groups, and living laboratories in Germany, France, Italy, and Japan. Several use cases were then chosen for development utilising the open-source Rasa framework. The system uses common representations such as Knowledge Bases and Knowledge Graphs to enable the integration of context, subject expertise, and multimodal data, and is available in English, German, French, Italian, and Japanese.

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Fang, Juan, Zhicheng Yao, Xiufeng Sui et Yungang Bao. « Ephedrine QoS : An Antidote to Slow, Congested, Bufferless NoCs ». Scientific World Journal 2014 (2014) : 1–11. http://dx.doi.org/10.1155/2014/691865.

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Datacenters consolidate diverse applications to improve utilization. However when multiple applications are colocated on such platforms, contention for shared resources like networks-on-chip (NoCs) can degrade the performance of latency-critical online services (high-priority applications). Recently proposed bufferless NoCs (Nychis et al.) have the advantages of requiring less area and power, but they pose challenges in quality-of-service (QoS) support, which usually relies on buffer-based virtual channels (VCs). We propose QBLESS, a QoS-aware bufferless NoC scheme for datacenters. QBLESS consists of two components: a routing mechanism (QBLESS-R) that can substantially reduce flit deflection for high-priority applications and a congestion-control mechanism (QBLESS-CC) that guarantees performance for high-priority applications and improves overall system throughput. We use trace-driven simulation to model a 64-core system, finding that, when compared to BLESS, a previous state-of-the-art bufferless NoC design, QBLESS, improves performance of high-priority applications by an average of 33.2% and reduces network-hops by an average of 42.8%.

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Miranda Cunha de Moura, Amanda, et Christian Bach. « An Academic Report on Mobile Application Development : Creating an Extra Field Practice Platform for Young Players ». European Journal of Engineering and Technology Research 1, n^o 6 (27 juillet 2018) : 9–15. http://dx.doi.org/10.24018/ejeng.2016.1.6.209.

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In this study, we deploy the impact of Education, Social Media, Motivation, and Virtual Reality on Mobile application development. The mission of mobile application development studies is to advance the understanding of this technology in order to use it in favor of children with learning difficulties, young athletes seeking extra field coaching, and parents concerned with their children development. The primary goal of this study was to investigate the user’s habits, motivations and technical possibilities in order to develop mobile learning and coaching activities in the e-environment process. The Smart Sport app is dedicated to provide these target market with the proper tool of electronic coaching.This paper aims to review 70 researchers and their articles about how the above assets affect directly the mobile application design. By doing so, it re-investigate the relationship between existing demand opportunities and the future of the application technology, considering that the mobile applications environment has a multitude of particularities generated by the complex system of devices, hardware, and software profiles and categories of users. Using the grounded theory, a model was developed and evaluated based on how Motivation, Education, Social Media Network, and Virtual Reality affects the development of mobile applications using data from JSTOR and Academic Search Premier database.

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Benítez-Guijarro, Antonio, Ángel Ruiz-Zafra, Zoraida Callejas, Nuria Medina-Medina, Kawtar Benghazi et Manuel Noguera. « General Architecture for Development of Virtual Coaches for Healthy Habits Monitoring and Encouragement ». Sensors 19, n^o 1 (30 décembre 2018) : 108. http://dx.doi.org/10.3390/s19010108.

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Good health is the result of a healthy lifestyle, where caring about physical activity and nutrition are key concerns. However, in today’s society, nutritional disorders are becoming increasingly frequent, affecting children, adults, and elderly people, mainly due to limited nutrition knowledge and the lack of a healthy lifestyle. A commonly adopted therapy to these imbalances is to monitor physical activity and daily habits, such as recording exercise or creating custom meal plans to count the amount of macronutrients and micronutrients acquired in each meal. Nowadays, many health tracking applications (HTA) have been developed that, for instance, record energy intake as well as users’ physiological parameters, or measure the physical activity during the day. However, most existing HTA do not have a uniform architectural design on top of which to build other applications and services. In this manuscript, we present system architecture intended to serve as a reference architecture for building HTA solutions. In order to validate the proposed architecture, we performed a preliminary evaluation with 15 well recognized experts in systems and software architecture from different entities around world and who have estimated that our proposal can generate architecture for HTA that is adequate, reliable, secure, modifiable, portable, functional, and with high conceptual integrity. In order to show the applicability of the architecture in different HTA, we developed two telemonitoring systems based on it, targeted to different tasks: nutritional coaching (Food4Living) and physical exercise coaching (TrainME). The purpose was to illustrate the kind of end-user monitoring applications that could be developed.

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Carroll, Joanne, et Louise Hopper. « 62 Engaging Older Adults in Co-Creating a Virtual Coaching Assistant (CAPTAIN) to Support Independent Living at Home ». Age and Ageing 48, Supplement_3 (septembre 2019) : iii1—iii16. http://dx.doi.org/10.1093/ageing/afz102.13.

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Abstract Background As population age increases (CSO, 2016), the CAPTAIN project aims to prevent premature or unnecessary transfer to long-term residential care by offering a safe environment where older adults can retain their autonomy, dignity and independence. CAPTAIN (Coach Assistant via Projected and Tangible Interface) will develop a virtual eCoaching assistant to facilitate independence in the home using augmented reality projections, voice and speech recognition, artificial intelligence and a user interface designed by older adults with their peers in mind. Methods Using Design Thinking and participatory research principles, older adults (n=10), caregivers (n=3) and healthcare professionals (HCPs) (n=2) co-create the CAPTAIN system with the research team. Co-creation occurs in cycles. Two co-design cycles use participatory workshops to identify older adults’ needs through discussion of typical older adult ‘personas’, examine how technology can support these needs and translate these outputs into system requirements. Four co-production cycles will evaluate CAPTAIN prototypes (hardware and software) to determine the effectiveness of personalised recommendations, usability and acceptability. The evaluation (involves additional caregivers, HCPs and stakeholder groups) combines observed CAPTAIN use, system-generated data, self-report measures, participatory group workshops and one-to-one interviews. Results Participants found the personas helpful in terms of generating conversation in the co-design sessions. They confidently described older adult needs, suggested where technology could provide useful support, and features they thought CAPTAIN should offer. Requirements across seven thematic areas (health, nutrition, physical and cognitive activity, accessibility, social interaction, education and safety) have now been sent to technical developers. Data from each cycle will continue to inform the development of CAPTAIN until system completion. Conclusion Participant contributions have ensured the continued development of an accessible, easy-to-use assistive technology system that will facilitate independent living and support older adults “…to do the things they want to do, when they want to do them”.

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Kunkle, Sarah, Manny Yip, Watson Ξ et Justin Hunt. « Evaluation of an On-Demand Mental Health System for Depression Symptoms : Retrospective Observational Study ». Journal of Medical Internet Research 22, n^o 6 (18 juin 2020) : e17902. http://dx.doi.org/10.2196/17902.

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Background Depression is an extremely prevalent issue in the United States, with an estimated 7% of adults experiencing at least one major depressive episode in 2017. Although psychotherapy and medication management are effective treatments for depression, significant barriers in accessing care persist. Virtual care can potentially address some of these obstacles. Objective We conducted a preliminary investigation of utilization characteristics and effectiveness of an on-demand health system for reducing depression symptoms. Methods Data were analyzed from 1662 users of an on-demand mental health system that includes behavioral health coaching, clinical services (therapy and psychiatry), and self-guided content and assessments primarily via a mobile app platform. Measures included engagement characterized by mobile app data, member satisfaction scores collected via in-app surveys, and depression symptoms via the Patient Health Questionnaire-2 (PHQ-2) at baseline and 8-12 week follow-up. Descriptive statistics are reported for measures, and pre/post-PHQ-2 data were analyzed using the McNemar test. A chi-square test was used to test the association between the proportion of individuals with an improvement in PHQ-2 result and care modality (coaching, therapy, and psychiatry, or hybrid). Results During the study period, 65.5% of individuals (1089/1662) engaged only in coaching services, 27.6% of individuals (459/1662) were engaged in both coaching and clinical services, 3.3% of individuals (54/1662) engaged only in clinical services, and 3.7% of individuals (61/1662) only used the app. Of the 1662 individuals who completed the PHQ-2 survey, 772 (46.5%) were considered a positive screen at intake, and 890 (53.6%) were considered a negative screen at intake. At follow-up, 477 (28.7%) of individuals screened positive, and 1185 (71.3%) screened negative. A McNemar test showed that there was a statistically significant decrease in the proportion of users experiencing depressed mood and anhedonia more than half the time at follow-up (P<.001). A chi-square test showed there was no significant association between care modality and the proportion of individuals with an improvement in PHQ-2 score. Conclusions This study provides preliminary insights into which aspects of an on-demand mental health system members are utilizing and levels of engagement and satisfaction over an 8-12 week window. Additionally, there is some signal that this system may be useful for reducing depression symptoms in users over this period. Additional research is required, given the study limitations, and future research directions are discussed.

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Gorghiu, Gabriel, Mihai Bîzoi et Elena-Ancuţa Santi. « Exploring Students' Perception Concerning Educational Coaching : Premises for the Design and Implementation of an Online Coaching Platform in Academia ». Postmodern Openings 13, n^o 4 (29 novembre 2022) : 142–57. http://dx.doi.org/10.18662/po/13.4/511.

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Education is a field that evolves constantly in relation to the changes in the society and the needs of its beneficiaries, taking over and adapting functional models from other fields. The quality of education of today’s generations has a direct impact on the future, as tomorrow's adults need to have strong key competences, but also transversal competences needed in a dynamic and competitive labour market. Thus, the knowledge society implies opening up the education system to other social sectors, exploiting the paradigm of student-centred education, harnessing technology and virtual environments to create authentic learning and training contexts. Within this framework, educational coaching can be a means through which the individual potential of the learner can be discovered and optimised, with multiple benefits in personal, academic and professional terms. In order to achieve academic success, students need to know themselves, set short-, medium- and long-term goals and objectives, develop skills and competences in autonomous learning, communication, self-motivation, creative and critical thinking, emotion management etc. Through coaching activities, students can benefit from academic support and help in the process of self-discovery and personal development, optimising personal potential, collaborating and creating educational communities that share common goals and values. Placing the teacher in the position of a coach, this can contribute to the development of a multifaceted perspective related to the role of the teacher in the contemporary school, as a student’s partner in the process of his or her education. The present paper aims to explore students’ perceptions concerning the need for coaching activities in their academic life and to identify the students’ main needs and directions for optimizing actions and interventions.

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Bassi, Giulia, Ivan Donadello, Silvia Gabrielli, Silvia Salcuni, Claudio Giuliano et Stefano Forti. « Early Development of a Virtual Coach for Healthy Coping Interventions in Type 2 Diabetes Mellitus : Validation Study ». JMIR Formative Research 6, n^o 2 (11 février 2022) : e27500. http://dx.doi.org/10.2196/27500.

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Background Mobile health solutions aimed at monitoring tasks among people with diabetes mellitus (DM) have been broadly applied. However, virtual coaches (VCs), embedded or not in mobile health, are considered valuable means of improving patients’ health-related quality of life and ensuring adherence to self-care recommendations in diabetes management. Despite the growing need for effective, healthy coping digital interventions to support patients’ self-care and self-management, the design of psychological digital interventions that are acceptable, usable, and engaging for the target users still represents the main challenge, especially from a psychosocial perspective. Objective This study primarily aims to test VC interventions based on psychoeducational and counseling approaches to support and promote healthy coping behaviors in adults with DM. As a preliminary study, university students have participated in it and have played the standardized patients’ (SPs) role with the aim of improving the quality of the intervention protocol in terms of user acceptability, experience, and engagement. The accuracy of users’ role-playing is further analyzed. Methods This preliminary study is based on the Obesity-Related Behavioral Intervention Trial model, with a specific focus on its early phases. The healthy coping intervention protocol was initially designed together with a team of psychologists following the main guidelines and recommendations for psychoeducational interventions for healthy coping in the context of DM. The protocol was refined with the support of 3 experts in the design of behavioral intervention technologies for mental health and well-being, who role-played 3 SPs’ profiles receiving the virtual coaching intervention in a Wizard of Oz setting via WhatsApp. A refined version of the healthy coping protocol was then iteratively tested with a sample of 18 university students (mean age 23.61, SD 1.975 years) in a slightly different Wizard of Oz evaluation setting. Participants provided quantitative and qualitative postintervention feedback by reporting their experiences with the VC. Clustering techniques on the logged interactions and dialogs between the VC and users were collected and analyzed to identify additional refinements for future VC development. Results Both quantitative and qualitative analyses showed that the digital healthy coping intervention was perceived as supportive, motivating, and able to trigger self-reflection on coping strategies. Analyses of the logged dialogs showed that most of the participants accurately played the SPs’ profile assigned, confirming the validity and usefulness of this testing approach in preliminary assessments of behavioral digital interventions and protocols. Conclusions This study outlined an original approach to the early development and iterative testing of digital healthy coping interventions for type 2 DM. Indeed, the intervention was well-accepted and proved its effectiveness in the definition and refinement of the initial protocol and of the user experience with a VC before directly involving real patients in its subsequent use and testing.

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Quimby, Katherine, Caitlin Hungate, Becky Milner, Chanel Richmond et Jennifer Kawatu. « What do Family Planning Staff Prioritize for Patient Experience Improvements ? Findings From a Training Initiative in New York State ». Journal of Patient Experience 9 (janvier 2022) : 237437352211406. http://dx.doi.org/10.1177/23743735221140653.

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It is especially important for providers of sexual and reproductive healthcare services to deliver positive patient experiences, given the personal, preference-driven, and sensitive nature of these services. We facilitated a patient experience training initiative with 8 teams representing family planning agencies in New York State. Teams participated in onsite assessment activities, 4 individualized coaching calls, and 5 group virtual sessions. Teams reported regularly on their progress and changes made. Seven teams (88%) improved clinic flow and 4 teams (50%) increased access to appointments. Five teams (63%) each addressed staff satisfaction and internal communication, and 2 teams (25%) improved their first impressions with patients. Four teams (50%) enhanced the physical environment and 3 teams (38%) improved their website and virtual presence. When engaged in a process to collect data, identify opportunities for improvement, implement changes, and reflect on the progress of those changes—both individually and with peer agencies—all 8 teams successfully implemented system-level changes.

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Pnevmatikakis, Aristodemos, Stathis Kanavos, George Matikas, Konstantina Kostopoulou, Alfredo Cesario et Sofoklis Kyriazakos. « Risk Assessment for Personalized Health Insurance Based on Real-World Data ». Risks 9, n^o 3 (1 mars 2021) : 46. http://dx.doi.org/10.3390/risks9030046.

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The way one leads their life is considered an important factor in health. In this paper we propose a system to provide risk assessment based on behavior for the health insurance sector. To do so we built a platform to collect real-world data that enumerate different aspects of behavior, and a simulator to augment actual data with synthetic. Using the data, we built classifiers to predict variations in important quantities for the lifestyle of a person. We offer a risk assessment service to the health insurance professionals by manipulating the classifier predictions in the long-term. We also address virtual coaching by using explainable Artificial Intelligence (AI) techniques on the classifier itself to gain insights on the advice to be offered to insurance customers.

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Lyon, Louise Ann, et Chelsea Clayton. « Arising of Informal Women's Learn-to-code Communities ». ACM Transactions on Computing Education 21, n^o 2 (juin 2021) : 1–24. http://dx.doi.org/10.1145/3433167.

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Female-focused, grassroots communities purporting to help women learn to code are popping up in a variety of settings, indicating the motivation on the part of the participants to evade male-dominated settings while learning. However, little is known about how these groups function as an activity system. With current technology enabling the forming of virtual communities and the meteoric rise in use of the Salesforce CRM (customer relationship management) platform, a group of women have formed a coaching and learning community designed to help women move from Salesforce administrators to software developers through learning to code. We used activity systems analysis (ASA) to investigate this real-world instance of the larger phenomenon using an ethnographic approach. We used ASA to organize and make sense of the data by first creating a table listing the points on the activity system triangle (subject, rules, object, etc.) and filling in the points of the triangle based on the design of the coaching and learning group as described by participants; this gave us a high-level view of the activity system. To understand the subjects’ point of view of the system, we then created a new column in the table to fill in themes that emerged from our qualitative data analysis organized by dimension of the activity system. This process enabled us to capture the activity and the voices of participants as well as tensions that had emerged in the system. Findings show a range of outcomes, from participants crediting the group as a kickstart to the journey to successfully landing a job as a developer to members stalling in their progress after involvement. Results also show that purposeful tensions of welcoming novice questions and offering unsolicited verbal encouragement built into the activity system create a welcoming, safe environment for women learning to code.

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Seregni, A., P. Tropea, R. Re, V. Biscaro, M. Caprino, E. Judica et M. Corbo. « Virtual coaching system for continuity of care and rehabilitation in patients with stroke. Results of the pilot study in the home scenario ». Gait & ; Posture 97 (octobre 2022) : 29–30. http://dx.doi.org/10.1016/j.gaitpost.2022.09.051.

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Królikowska, Małgorzata, et Piotr A. Dybczyński. « Dynamical evolution of C/2017 K2 PANSTARRS ». Astronomy & ; Astrophysics 615 (juillet 2018) : A170. http://dx.doi.org/10.1051/0004-6361/201832917.

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Context. The comet C/2017 K2 PANSTARRS drew attention to its activity at the time of its discovery in May 2017 when it was about 16 au from the Sun. This Oort spike comet will approach its perihelion in December 2022, and the question about its dynamical past is an important issue to explore. Aims. In order to answer the question of whether C/2017 K2 is a dynamically old or new comet it is necessary to obtain its precise osculating orbit, its original orbit, and propagate its motion backwards in time to the previous perihelion. Knowledge of the previous perihelion distance is necessary to distinguish between these two groups of the Oort spike comets. We have studied the dynamical evolution of C/2017 K2 to the previous perihelion (backward calculations for about 3–4 Myr) as well as to the future (forward calculations for about 0.033 Myr) using the swarm of virtual comets (VCs) constructed from a nominal osculating orbit of this comet which we determined here using all positional measurements available at the moment. Outside the planetary system both Galactic and stellar perturbations were taken into account. Results. We derive that C/2017 K2 is a dynamically old Oort spike comet (1/aprev = (48.7 ± 7.9) × 10−6 au−1) with the previous perihelion distance below 10 au for 97% of VCs (nominal qprev = 3.77 au). According to the present data this comet will be perturbed into a more tightly bound orbit after passing the planetary zone (1/afut = (1140.4 ± 8.0) × 10−6 au−1, qfut = 1.79336 ± 0.00006 au) provided that non-gravitational effects will not change the orbit significantly. Conclusions. C/2017 K2 has already visited our planetary zone during its previous perihelion passage. Thus, it is almost certainly a dynamically old Oort spike comet. The future orbital solution of this comet is formally very precise, however, it is much less definitive since the presented analysis is based on pre-perihelion data taken at very large heliocentric distances (23.7–14.6 au from the Sun), and this comet can experience a significant non-gravitational perturbation during the upcoming perihelion passage in 2022.

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Silacci, Alessandro, Redha Taiar et Maurizio Caon. « Towards an AI-Based Tailored Training Planning for Road Cyclists : A Case Study ». Applied Sciences 11, n^o 1 (30 décembre 2020) : 313. http://dx.doi.org/10.3390/app11010313.

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In a world where the data is a central piece, we provide a novel technique to design training plans for road cyclists. This study exposes an in-depth review of a virtual coach based on state-of-the-art artificial intelligence techniques to schedule road cycling training sessions. Together with a dozen of road cycling participants’ training data, we were able to create and verify an e-coach dedicated to any level of road cyclists. The system can provide near-human coaching advice on the training of cycling athletes based on their past capabilities. In this case study, we extend the tests of our empirical research project and analyze the results provided by experts. Results of the conducted experiments show that the computational intelligence of our system can compete with human coaches at training planification. In this case study, we evaluate the system we previously developed and provide new insights and paths of amelioration for systems based on artificial intelligence for athletes. We observe that our system performs equal or better than the control training plans in 14 and 24 week training periods where it was evaluated as better in 4 of our 5 test components. We also report a higher statistical difference in the results of the experts’ evaluations between the control and virtual coach training plan (24 weeks; training load: X2 = 4.751; resting time quantity: X2 = 3.040; resting time distance: X2 = 2.550; efficiency: X2 = 2.142).

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Beinema, Tessa, Harm op den Akker, Dennis Hofs et Boris van Schooten. « The WOOL Dialogue Platform : Enabling Interdisciplinary User-Friendly Development of Dialogue for Conversational Agents ». Open Research Europe 2 (13 janvier 2022) : 7. http://dx.doi.org/10.12688/openreseurope.14279.1.

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Health coaching applications can include (embodied) conversational agents as coaches. The development of these agents requires an interdisciplinary cooperation between eHealth application developers, interaction designers and domain experts. Therefore, proper dialogue authoring tools and tools to integrate these dialogues in a conversational agent system are essential in the process of creating successful agent-based applications. However, we found no existing open source, easy-to-use authoring tools that support multidisciplinary agent development. To that end, we developed the WOOL Dialogue Platform. The WOOL Dialogue Platform provides the eHealth and conversational agent communities with an open source platform, consisting of a set of easy to use tools that facilitate virtual agent development. The platform consists of a dialogue definition language, an editor, application development libraries and a web service. To illustrate the platform’s possibilities and use in practice, we describe two use cases from EU Horizon 2020 research projects. The WOOL Dialogue Platform is an ‘easy to use, and powerful if needed’ platform for the development of conversational agent applications that is seeing a slow but steady increase in uptake in the eHealth community. Developed to support dialogue authoring for embodied conversational agents in the health coaching domain, this platform’s strong points are its ease of use and ability to let domain experts and agents technology experts work together by providing all parties with tools that support their work effectively.

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Kamal, Arif, Kristen McNiff, Ann A. Prestrud, Dale Lupu, Molly Gavigan, Yousuf Zafar, Richard L. Schilsky et Amy Pickar Abernethy. « Developing a virtual collaborative to facilitate palliative care and quality improvement learning in oncology. » Journal of Clinical Oncology 31, n^o 31_suppl (1 novembre 2013) : 252. http://dx.doi.org/10.1200/jco.2013.31.31_suppl.252.

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252 Background: Despite a strong evidence base and increasing calls for integration, oncologists find it difficult to deliver primary palliative care concurrent with standard oncology care. Solutions that promote practical integration of palliative care in oncology are needed. In an AHRQ-funded pilot, ASCO and the American Academy of Hospice and Palliative Medicine are developing the Virtual Learning Collaborative (VLC) to develop and test a scalable model for quality improvement and dissemination of best practices in palliative care within the oncology setting. Methods: The VLC will be a web-based learning and collaboration system built upon existing ASCO technology resources. We will select at least 25 oncology practices to participate in regular, facilitated learning sessions, collaborative discussions, and sharing of best practices. The VLC will equip each practice with the knowledge, tools, and coaching to select, test, and adopt a quality improvement intervention relevant to their own palliative care needs. Development of the VLC is ongoing; oncology practices begin participation in Spring 2014. Results: We will assess the VLC using protocol-driven evaluation methods common to technology development, quality improvement, implementation science, and educational initiatives. VLC usability, feasibility, and acceptability will be assessed through surveys of participating practices and focus groups. Longitudinal changes in conformance to palliative care metrics will be assessed using ASCO’s Quality Oncology Practice Initiative (QOPI) system. We will use mixed qualitative and quantitative evaluation methods to assess ongoing changes in clinician knowledge and self-efficacy in applying palliative care principles. Conclusions: We aim to develop and test a novel method for facilitating quality improvement and palliative care learning in oncology. Through this pilot, we will refine the VLC for implementation in the greater oncology community. Ultimately, this effort supports other ASCO and AAHPM quality improvement initiatives focused on clinician education and dissemination of best practices.

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Ait-Bennacer, Fatima-Ezzahra, Abdessadek Aaroud, Khalid Akodadi et Bouchaib Cherradi. « Applying Deep Learning and Computer Vision Techniques for an e-Sport and Smart Coaching System Using a Multiview Dataset : Case of Shotokan Karate ». International Journal of Online and Biomedical Engineering (iJOE) 18, n^o 12 (14 septembre 2022) : 35–53. http://dx.doi.org/10.3991/ijoe.v18i12.30893.

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Smart coaching and e-sport platforms have shown a great interest in the recent research studies. Through this study, we aim to globalize the practice of sport, especially Shotokan Karate, by connecting participants and coaches on an international scale through the integration of Artificial Intelligence techniques such as computer vision and deep learning, to give the possibility of carrying out national and international virtual training courses without logistical constraints. The proposed work aims to apply the latest action detection, action recognition, and action classification methods for different Karate movements using the LSTM and the ST-GCN algorithms and proposes these movements in 3D using Video Inference for Human Body Pose and Shape Estimation (VIBE). Our proper Multiview Dataset contains pose estimations of a set of basic movements captured by a karate Shotokan expert (6th DAN Black Belt) from three views (Front view, Left view, and Right view) using OpenPose and FastPose for human body keypoint detection. The current study sets out to detect, recognize, classify and score different participants' movements. We achieved greater than 96% recognition accuracy of this dataset using the LSTM algorithm, and 91.01% using the ST-GCN algorithm.

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Hurmuz, Marian Z. M., Stephanie M. Jansen-Kosterink, Harm op den Akker et Hermie J. Hermens. « User Experience and Potential Health Effects of a Conversational Agent-Based Electronic Health Intervention : Protocol for an Observational Cohort Study ». JMIR Research Protocols 9, n^o 4 (3 avril 2020) : e16641. http://dx.doi.org/10.2196/16641.

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Background While the average human life expectancy has increased remarkably, the length of life with chronic conditions has also increased. To limit the occurrence of chronic conditions and comorbidities, it is important to adopt a healthy lifestyle. Within the European project “Council of Coaches,” a personalized coaching platform was developed that supports developing and maintaining a healthy lifestyle. Objective The primary aim of this study is to assess the user experience with and the use and potential health effects of a fully working Council of Coaches system implemented in a real-world setting among the target population, specifically older adults or adults with type 2 diabetes mellitus or chronic pain. Methods An observational cohort study with a pretest-posttest design will be conducted. The study population will be a dynamic cohort consisting of older adults, aged ≥55 years, as well as adults aged ≥18 years with type 2 diabetes mellitus or chronic pain. Each participant will interact in a fully automated manner with Council of Coaches for 5 to 9 weeks. The primary outcomes are user experience, use of the program, and potential effects (health-related factors). Secondary outcomes include demographics, applicability of the virtual coaches, and user interaction with the virtual coaches. Results Recruitment started in December 2019 and is conducted through mass mailing, snowball sampling, and advertisements in newspapers and social media. This study is expected to conclude in August 2020. Conclusions The results of this study will either confirm or reject the hypothesis that a group of virtual embodied conversational coaches can keep users engaged over several weeks of interaction and contribute to positive health outcomes. Trial Registration The Netherlands Trial Register: NL7911; https://www.trialregister.nl/trial/7911 International Registered Report Identifier (IRRID) PRR1-10.2196/16641

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Billis, Antonis, Niki Pandria, Sophia-Anastasia Mouratoglou, Evdokimos Konstantinidis et Panagiotis Bamidis. « Development of Cognitive and Physical Exercise Systems, Clinical Recordings, Large-Scale Data Analytics, and Virtual Coaching for Heart Failure Patients : Protocol for the BioTechCOACH-ForALL Project ». JMIR Research Protocols 9, n^o 5 (4 mai 2020) : e17714. http://dx.doi.org/10.2196/17714.

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Background Heart failure is a chronic disease affecting patient morbidity and mortality. Current guidelines for heart failure patient treatment are focused on improving their clinical status, functional capacity, and quality of life. However, these guidelines implement numerous instructions including medical treatment adherence, physical activity, and self-care management. The complexity of the therapeutic instructions makes them difficult to follow especially by older adults. Objective The challenge of this project is to (1) measure real-life adherence to a regular physical exercise program and (2) attempt to influence older adult patients with heart failure toward embracing a more physically active self-care lifestyle. Methods This research consists of two studies, including a lab experiment and a pragmatic evaluation of technology at patients’ homes. The lab experiment aims at exploring in an objective way (measuring neurophysiological responses to stimuli) patient engagement with different characteristics of virtual agents, while the home study is a 3-phase prospective study where the developed technology platform is tested by heart failure patients in their own home environments. Patients undergo evaluation of their physical activity and cognitive status using standard evaluation methods (6-minute walk test, questionnaires) and receive wearable devices to accurately measure everyday life activity levels (home study phases 1-3). During home study phases 2 and 3, exergames (serious games for physical exercise) to provide a physical exercise plan as a joyful activity are delivered to patients’ private households and e-coaching techniques are implemented in the final phase (home study phase 3) of the protocol, to influence patient attitudes toward a more healthy and recommended lifestyle. Results The trial is still ongoing. Recruitment is ongoing, and the project has progressed for some participants through phase 2 of the home study. The sample size for both studies is 28 participants; 10 have already been included in the study, and both baseline clinical and patient-reported outcome data are retrieved. Phases 2 and 3 of the home pilot study are expected to be completed within 6 months. Conclusions The main challenge of the project is the change of attitude of older age heart failure patients through an e-coaching system. Given the adoption of a cocreation and living lab approach and the main objective for real-life evaluation, the project is ready to react to any collected feedback, even during the implementation of the research plan. Clinical assessment and objective evaluation are expected to provide all required information for reliable findings. Trial Registration ClinicalTrials.gov NCT03877328; https://clinicaltrials.gov/ct2/show/NCT03877328 International Registered Report Identifier (IRRID) DERR1-10.2196/17714

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Chatterjee, Ayan, et Andreas Prinz. « Applying Spring Security Framework with KeyCloak-Based OAuth2 to Protect Microservice Architecture APIs : A Case Study ». Sensors 22, n^o 5 (22 février 2022) : 1703. http://dx.doi.org/10.3390/s22051703.

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In this study, we implemented an integrated security solution with Spring Security and Keycloak open-access platform (SSK) to secure data collection and exchange over microservice architecture application programming interfaces (APIs). The adopted solution implemented the following security features: open authorization, multi-factor authentication, identity brokering, and user management to safeguard microservice APIs. Then, we extended the security solution with a virtual private network (VPN), Blowfish and crypt (Bcrypt) hash, encryption method, API key, network firewall, and secure socket layer (SSL) to build up a digital infrastructure. To accomplish and describe the adopted SSK solution, we utilized a web engineering security method. As a case study, we designed and developed an electronic health coaching (eCoach) prototype system and hosted the system in the expanded digital secure infrastructure to collect and exchange personal health data over microservice APIs. We further described our adopted security solution’s procedural, technical, and practical considerations. We validated our SSK solution implementation by theoretical evaluation and experimental testing. We have compared the test outcomes with related studies qualitatively to determine the efficacy of the hybrid security solution in digital infrastructure. The SSK implementation and configuration in the eCoach prototype system has effectively secured its microservice APIs from an attack in all the considered scenarios with 100% accuracy. The developed digital infrastructure with SSK solution efficiently sustained a load of (≈)300 concurrent users. In addition, we have performed a qualitative comparison among the following security solutions: Spring-based security, Keycloak-based security, and their combination (our utilized hybrid security solution), where SSK showed a promising outcome.

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Busnatu, Ștefan-Sebastian, Maria-Alexandra Pană, Andreea Elena Lăcraru, Cosmina-Elena Jercălău, Nicolae Paun, Massimo Caprino, Kai Gand et al. « Patient Perception When Transitioning from Classic to Remote Assisted Cardiac Rehabilitation ». Diagnostics 12, n^o 4 (7 avril 2022) : 926. http://dx.doi.org/10.3390/diagnostics12040926.

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Cardiac rehabilitation is an individualized outpatient program of physical exercises and medical education designed to accelerate recovery and improve health status in heart disease patients. In this study, we aimed for assessment of patients’ perception of the involvement of technology and remote monitoring devices in cardiac recovery. During the Living Lab Phase of the Virtual Coaching Activities for Rehabilitation in Elderly (vCare) project, we evaluated eleven patients (five heart failure patients and six ischemic heart disease patients). Patient admission in the UMFCD cardiology clinical department served as a shared inclusion criterion for both study groups. In addition, the presence of II or III heart failure NYHA stage status was considered an inclusion criterion for the heart failure study group and patients diagnosed with ischemic heart disease for the second one. We conducted a system usability survey to assess the patients’ perception of the system’s technical and medical functions. The survey had excellent preliminary results in the heart failure study group and good results in the ischemic heart disease group. The limited access of patients to cardiac rehabilitation in Romania has led to increased interest and motivation in this study. The final version of the product is designed to adapt to patient needs and necessities; therefore, patient perception is necessary.

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Barnett, Barbara, Bruce Perrin, Jim Curtin et Katrin Helbing. « Can Computer-Based Assessment be Used for Motor Skills Learning ? A Training Transfer Study ». Proceedings of the Human Factors and Ergonomics Society Annual Meeting 42, n^o 20 (octobre 1998) : 1432–36. http://dx.doi.org/10.1177/154193129804202016.

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A study was conducted to assess the effectiveness of a Virtual Environment-based intelligent tutor developed to train maneuvering skills on a remotely operated underwater vehicle (ROV) and to evaluate training transfer from the VE-enhanced training environment to maneuvering an actual ROV in an underwater environment. Thirty-two subjects were randomly assigned to one of four test groups: full training, simulation only, ROV only, or no training. Participants completed two pre-test trials, followed by training, and then two different of post-test tasks. Pre-test trials and training transfer trials were conducted in a test tank using an actual ROV. The full training group received computer-based verbal coaching, performance feedback, a VE-enhanced external, and performance based progression through a matrix of exercises organized by increasing task difficulty. Subjects in the simulation only and ROV only groups received an equal amount of unstructured practice time using the ROV simulation and the actual vehicle respectively. The No Training group performed only the pre-test and post-test trials. Comparison of pre-test and post-test performance was made across a full range of performance parameters. For most measures, no significant differences were observed between the different treatment groups. Where differences were observed, subjects with initial low ability in pre-test did not benefit from the full training system as much as the other forms of training. Transfer trials indicated that all forms of training showed significant positive transfer over that of the No Training group.

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Purcell, Natalie, Joanna Sells, Sarah McGrath, Haley Mehlman, Daniel Bertenthal et Karen H. Seal. « “Then COVID happened…” : Veterans’ Health, Wellbeing, and Engagement in Whole Health Care During the COVID-19 Pandemic ». Global Advances in Health and Medicine 10 (janvier 2021) : 216495612110538. http://dx.doi.org/10.1177/21649561211053828.

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Background Little is known about the COVID-19 pandemic’s impact on US military veterans’ health, wellbeing, and care engagement. Healthcare systems like VA need additional information about the pandemic’s biopsychosocial impacts and how a Whole Health approach may help to address them. Objective To examine how the pandemic has affected veterans’ health, wellbeing, and engagement in the VA Whole Health System of Care. Method We conducted qualitative interviews with 40 veterans at a large multicampus VA healthcare system during the pandemic. Informed by a Whole Health approach, interviews used open-ended questions to holistically explore pandemic impacts on mental and physical health, healthcare access and engagement, social support, coping strategies, and use of VA healthcare and wellness services. Interviews were conducted by telephone, audio-recorded, and analyzed using a matrix-based technique. Interviews were supplemented by an original survey assessing pandemic impacts; descriptive frequencies were calculated to describe and characterize the interviewed sample. Interview Results Nearly, all participating veterans described significant pandemic impacts on their wellbeing, especially loneliness and sorrow stemming from isolation and disruptions to ordinary routines. These emotional impacts—sometimes combined with new constraints on care access and personal mobility—disrupted veterans’ health plans and sometimes deterred engagement in both routine and wellness care. Veterans already struggling with chronic mental and physical health conditions and those who experienced transitions or losses during the pandemic described the most severe impacts on their wellbeing. Virtual VA wellness services, especially health coaching and mind-body wellness groups, were a key source of support and connection for those who engaged in them. Conclusion We discuss the implications of our findings for care systems attempting to implement a Whole Health System of Care, including how they can address postpandemic barriers to engagement in healthcare and wellness programs, and how wellness programs can be leveraged to support those most at risk after the COVID-19 pandemic and in future crises.

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Nasution, Anita Hakim, et Lukmandono Lukmandono. « Review of The Literature, Prospects, and The Impact of Bancassurance on The Stability of The Banking Industry ». Operations Excellence Journal of Applied Industrial Engineering 13, n^o 3 (30 novembre 2021) : 310. http://dx.doi.org/10.22441/oe.2021.v13.i3.029.

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Existing literature, as well as empirical studies on Bancassurance, emphasize that there has been a shifting business in the bank from selling bank products to IKNB (Non-Bank Financial Industry). In this study, Bancassurance is one of the IKNBs that must be sold because the feather-based income is quite large and has a small risk because the bank is a referral as a distribution agent. The purpose of this research is to determine the characteristics of Bancassurance in various countries for the first time in Indonesia so that our human resources are not unfamiliar with the insurance sold in banks and can adjust the strategy to market characteristics in Indonesia. This paper discusses Bancassurance with various methodologies ranging from Expert Judgment to Risk Management by involving 15 international journal studies related to the implementation of Bancassurance in various countries including Google Scholar, Elsevier, and Science Direct. This paper will be useful as a topic for further research where researchers can identify the effect of bancassurance on banking, risks that occur in bancassurance practice, solutions to sales strategies, and system bottlenecks that occur between bank sales and sales bancassurance. The result of this research is the reluctance of selling banks to sell insurance products because they do not understand the concept of life insurance and unit link. In addition, bancassurance sales resources placed in the bank are not as good as insurance agents in general due to different incentives, incentive problems, and bottlenecks in the sales execution flow also make insurance targets cannot be achieved optimally. The solution is that Re-skills must be done in the "Virtual Century" era because the insurance link unit has also shifted from offline meetings to online so that all systems are done digitally. Coordination between resources is expected to go through a digitization process so that customer claims are quickly resolved, referrals are quickly executed and periodic coaching can be carried out by prohibited branch heads/superiors. Bancassurance with unit link customization/personalization will be a new value proposition.

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Ahmed, Zeeshan, Clarissa H. H. Lau, Meredith Poole, Danielle Arshinoff, Ryaan El-Andari, Abigail White, Garrett Johnson et al. « Canadian Conference for the Advancement of Surgical Education (C-CASE) 2021 : Post-Pandemic and Beyond Virtual Conference AbstractsBlended learning using augmented reality glasses during the COVID-19 pandemic : the present and the futureActivating emotions enhance surgical simulation performance : a cluster analysisTraining in soft-tissue resection using real-time visual computer navigation feedback from the Surgery Tutor : a randomized controlled trialSonoGames : delivering a point of care ultrasound curriculum through gamificationTeaching heart valve surgery techniques using simulators : a reviewPortable, adjustable simulator for cardiac surgical skillsDesign and validity evidence for a unique endoscopy simulator using a commercial video gameComparison of a novel silicone flexor tendon repair model to a porcine tendon repair modelAssessment system using deep learningChallenges addressed with solutions, simulation in undergraduate and postgraduate surgical education, innovative education or research in surgical educationMachine learning distinguishes between skilled and less-skilled psychological performance in virtual neurosurgical performanceA powerful new tool for learning anatomy as a medical studentDevelopment and effectiveness of a telementoring approach for neurosurgical simulation training of medical studentsA team based learning approach to general otolaryngology in undergraduate medical educationStudent-led surgery interest group outreach for high school mentorship : a diversity driven initiativeRetrospective evaluation of novel case-based teaching series for first year otolaryngology residentsHarassment in surgery : assessing differences in perceptionFactors associated with medical student interest in pursuing a surgical residency : a cross-sectional survey studyUnderstanding surgical education experiences : an examination of 2 mentorship modelsLeadership development programs for surgical residents : a narrative review of the literatureValidation of knee arthroscopy simulator scoring system against subjective video analysis scoringCharacterizing the level of autonomy in Canadian cardiac surgery residentsMentorship patterns among medical students successfully matched to a surgical specialityStaying safe with laparoscopic cholecystectomy : the use of landmarking and intraoperative time-outsEndovascular aneurysm repair has changed the training paradigm of vascular residentsImplementation of a standardized handover in pediatric surgeryProcedure-specific assessment in cardiothoracic and vascular surgery : a scoping reviewLongitudinal mentorship-based programs for junior medical students increases exposure, confidence, and interest in surgeryCreating a green-shift in surgical education : a scoping review of initiatives and methods to make perioperative care more sustainableA novel plastic surgery residency bootcamp : structure and utilityVideo-based coaching for surgical residents : a systematic review and meta-analysisVirtual patient cases aligned with EPAs provide innovative e-learning strategiesAchieving competency in the CanMEDS roles for surgical trainees in the COVID-19 era : What have we learned and where do we go?Profiles of burnout and response to the COVID-19 pandemic among general surgery residents at a large academic training programLearner-driven telemedicine curriculum during the COVID-19 pandemicCentralized basic orthopaedic surgery virtual examinations — assessment of examination environmentEffects of the COVID-19 pandemic on surgical resident training : a nationwide survey of Canadian program directorsExploring the transition to virtual care in surgery and its impact on clinical exposure, teaching, and assessment during the COVID-19 pandemiecImpact of COVID-19 on procedural skills training and career preparation of medical studentsVirtual surgical shadowing for undergraduate medical students amidst the COVID-19 pandemicEducational impact of the COVID-19 third wave on a competency-based orthopedic surgery programVirtualization of postgraduate residency interviews : a ransforming practice in health care educationAn informational podcast about Canadian plastic surgery training programs : “Doctority Canada : Plastic Surgery.”Virtual versus in-person suture training : an evaluation of synchronous and asynchronous teaching paradigmsMerged virtual reality teaching of the fundamentals of laparoscopic surgery : a randomized controlled trialShould surgical skills be evaluated during virtual CaRMS residency interviews ? A Canadian survey of CaRMS applicants and selection committee members during the COVID-19 pandemicImpact of the COVID-19 pandemic on surgical education for medical students : perspectives from Canada’s largest faculty of medicine ». Canadian Journal of Surgery 64, n^o 6 Suppl 1 (25 novembre 2021) : S65—S79. http://dx.doi.org/10.1503/cjs.018821.

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Goff, Lydia, Rhonda St. Croix, Jenny W. Jing, Dario Ferri, Mithusa Sivanathan, Chelsea Harris, Florence Pelletier et al. « C-CASE 2022 : Competence to Excellence01. The Queen Bee phenomenon in Canadian surgical subspecialties : an evaluation of gender biases in the resident training environment02. Barriers to surgical peer coaching — What have we learned, and where do we go from here?03. Shared decision-making and evidence-based medicine : Pivotal or trivial to patient care in orthopedic trauma?04. Immersive virtual reality and cadaveric bone are equally effective in skeletal anatomy education : a randomized crossover noninferiority trial05. Development of simulators for decentralized simulation-based education IO training using design thinking and Delphi — a novel approach06. The impact of feedback on laparoscopic skills for surgical residents during COVID-1907. The role of collaborative feedback and remote practice in the acquisition of suturing skills by medical students at Université de Montréal08. Efficacy testing of an affordable and realistic small bowel simulator for hand-sewn anastomosis09. The LASER rating scale : a new teaching tool in otolaryngology10. Virtual patient case simulations : their role in undergraduate and postgraduate surgical training11. Evaluating the effectiveness of video-assisted informed consent in surgery : a systematic review12. Communication patterns in the cardiac surgery operating room are affected by task difficulty : a simulation model13. Improving adherence to postcall departure guidelines in orthopedics : a quality-improvement initiative14. Increasing familiarity among team members helps to reduce laparoscopic procedure time15. The effectiveness of a self-directed online learning module on trainee knowledge and confidence during plastic surgery clinical rotations16. Implementing an orientation handbook before a surgical rotation in urology17. An examination of equity-related experiences of surgical trainees at academic centres across Ontario : design of a targeted needs assessment18. Viewing differences between experts and trainees : implication for surgical education19. Assessment of medical student exposure to and satisfaction with surgical subspecialty education20. Assessment of student exposure to climate impacts of surgical personal protective equipment in the undergraduate medical curriculum21. Virtual reality simulation for the middle cranial fossa approach — a face, content and construct validation study22. Evaluating the Canadian Orthopaedic Surgery Medical Education Course (COSMEC)23. Subpial resection in a novel ex vivo calf brain epilepsy simulation model24. Effectiveness of the Eyesi augmented reality simulator for ophthalmology trainees : a systematic review and meta-analysis25. Learning beyond the objectives : an evidence-based analysis of AI-selected competencies in surgical simulation training26. Virtual compared with in-person surgical grand rounds : participants’ perceptions, preferences and directions for the future27. Quality of narrative feedback for entrustable professional activities assessed in the operating room : analysis of 4. years of assessments in the surgical foundations curriculum at Queen’s University28. SimOscopy : an accessible 3D-printed and laser-cut laparoscopic surgical simulator developed for a mobile device29. A debriefing tool to acquire nontechnical skills in trauma courses30. Capacity building using a hub-and-spokes model to produce customizable simulators for surgical education31. Exploring skin tone diversity in a plastic surgery resident education curriculum32. Video-based assessments of thoracic surgery trainees’ operative skills as adjuncts in competency-based medical education33. How do you feel ? An examination of team leaders’ and members’ emotions in surgical simulations34. Comparing the efficacy of a real-time intelligent coaching system to human expert instruction in surgical technical skills training : randomized controlled trial35. Empowering women to pursue surgery : launching a pilot gender-congruent mentorship program for medical students36. Affective and cognitive responses to a virtual reality spine simulator37. Immersive virtual reality for patient-specific preoperative planning : a systematic review38. The categorization of surgical problems by junior and senior medical students39. The application of microlearning modules in surgical education to enhance procedural skills and surgical training40. Authorship gender disparity and trends in female authorship in 5 high-impact orthopedic journals from 2002 to 202241. The landscape of Canadian academic surgery : analysis of gender representation, academic rank, and research productivity ». Canadian Journal of Surgery 65, n^o 6 Suppl 1 (24 novembre 2022) : S19—S32. http://dx.doi.org/10.1503/cjs.014622.

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Calvaresi, Davide, Rachele Carli, Jean-Gabriel Piguet, Victor H. Contreras, Gloria Luzzani, Amro Najjar, Jean-Paul Calbimonte et Michael Schumacher. « Ethical and legal considerations for nutrition virtual coaches ». AI and Ethics, 23 novembre 2022. http://dx.doi.org/10.1007/s43681-022-00237-6.

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AbstractChoices and preferences of individuals are nowadays increasingly influenced by countless inputs and recommendations provided by artificial intelligence-based systems. The accuracy of recommender systems (RS) has achieved remarkable results in several domains, from infotainment to marketing and lifestyle. However, in sensitive use-cases, such as nutrition, there is a need for more complex dynamics and responsibilities beyond conventional RS frameworks. On one hand, virtual coaching systems (VCS) are intended to support and educate the users about food, integrating additional dimensions w.r.t. the conventional RS (i.e., leveraging persuasion techniques, argumentation, informative systems, and recommendation paradigms) and show promising results. On the other hand, as of today, VCS raise unexplored ethical and legal concerns. This paper discusses the need for a clear understanding of the ethical/legal-technological entanglements, formalizing 21 ethical and ten legal challenges and the related mitigation strategies. Moreover, it elaborates on nutrition sustainability as a further nutrition virtual coaches dimension for a better society.

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Ketphat, Naphat, Anthony Whiteing et Ronghui Liu. « State movement for controlling trains operating under the virtual coupling system ». Proceedings of the Institution of Mechanical Engineers, Part F : Journal of Rail and Rapid Transit, 9 septembre 2021, 095440972110437. http://dx.doi.org/10.1177/09544097211043747.

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Train Virtual Coupling System (VCS) has been proposed as a new signalling system for controlling trains by building a group of trains as convoys in order to increase line’s capacity. This is achieved because the consecutive trains under the VCS is separated only by a relative braking distance; this is much shorter than the separation distance required in the Fixed Block Signaling (FBS) and Moving Block Signaling systems (MBS). In order to achieve the high capacity obtained from the VCS, the trains in a virtually coupled convoy should keep at a distance as close to the relative braking distance as possible and run at the same speed for maintaining the safe distance between them. In this paper, we propose a distance and velocity difference approach and introduce the multiple state movements for stimulating train’s movement under the VCS. The simulated results show that the capacity can be significantly increased and maximized in which the actual separation distance between trains when they are in convoy state is slightly longer than the minimum safe distance. It could be ensured that the train has proceeded safely in that the actual separation distance is surely longer than the minimum safe distance throughout the operation time period. In addition, we show that the trains can also proceed smoothly, in that a following train catches up with its leading train and joined in the convoy with a stable movement.

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Almousa, Omamah, Ruby Zhang, Meghan Dimma, Jieming Yao, Arden Allen, Leo Chen, Parastou Heidari et Karim Qayumi. « Virtual Reality Technology and Remote Digital Application for Tele-Simulation and Global Medical Education : An Innovative Hybrid System for Clinical Training ». Simulation & ; Gaming, 2 mai 2021, 104687812110082. http://dx.doi.org/10.1177/10468781211008258.

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Objective. Although simulation-based medical education is fundamental for acquisition and maintenance of knowledge and skills; simulators are often located in urban centers and they are not easily accessible due to cost, time, and geographic constraints. Our objective is to develop a proof-of-concept innovative prototype using virtual reality (VR) technology for clinical tele simulation training to facilitate access and global academic collaborations. Methodology. Our project is a VR-based system using Oculus Quest as a standalone, portable, and wireless head-mounted device, along with a digital platform to deliver immersive clinical simulation sessions. Instructor’s control panel (ICP) application is designed to create VR-clinical scenarios remotely, live-stream sessions, communicate with learners and control VR-clinical training in real-time. Results. The Virtual Clinical Simulation (VCS) system offers realistic clinical training in virtual space that mimics hospital environments. Those VR clinical scenarios are customizable to suit the need, with high-fidelity lifelike characters designed to deliver interactive and immersive learning experience. The real-time connection and live-stream between ICP and VR-training system enables interactive academic learning and facilitates access to tele simulation training. Conclusions. VCS system provides innovative solutions to major challenges associated with conventional simulation training such as access, cost, personnel, and curriculum. VCS facilitates the delivery of academic and interactive clinical training that is similar to real-life settings. Tele-clinical simulation systems like VCS facilitate necessary academic-community partnerships, as well as global education network between resource-rich and low-income countries.

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