Dissertations / Theses on the topic 'Edge computing with artificial intelligence'
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Antonini, Mattia. "From Edge Computing to Edge Intelligence: exploring novel design approaches to intelligent IoT applications." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/308630.
Full textWoldeMichael, Helina Getachew. "Deployment of AI Model inside Docker on ARM-Cortex-based Single-Board Computer : Technologies, Capabilities, and Performance." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-17267.
Full textChen, Hsinchun, Jay F. Nunamaker, Richard E. Orwig, and Olga Titkova. "Information Visualization for Collaborative Computing." IEEE, 1998. http://hdl.handle.net/10150/105495.
Full textA prototype tool classifies output from an electronic meeting system into a manageable list of concepts, topics, or issues that a group can further evaluate. In an experiment with output from GroupSystems electronic meeting system, the tool's recall ability was comparable to that of a human facilitator, but took roughly a sixth of the time.
Hutson, Matt 1978. "Artificial intelligence and musical creativity : computing Beethoven's tenth." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/85756.
Full textIncludes bibliographical references (p. 47-48).
by Matthew T. Hutson.
S.M.in Science Writing
Shan, Qingshan. "Artificial intelligence for identifying impacts on smart composites." Thesis, Southampton Solent University, 2004. http://ssudl.solent.ac.uk/600/.
Full textTsui, Kwok Ching. "Neural network design using evolutionary computing." Thesis, King's College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299918.
Full textSamikwa, Eric. "Flood Prediction System Using IoT and Artificial Neural Networks with Edge Computing." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280299.
Full textÖversvämningar drabbar miljontals människor över hela världen genom att orsaka dödsfall och förstöra egendom. Sakernas Internet (IoT) har använts i områden som översvämnings förutsägelse, översvämnings övervakning, översvämning upptäckt, etc. Även om IoT-teknologier inte kan stoppa förekomsten av översvämningar, så är de mycket användbara när det kommer till transport av katastrofberedskap och motverkande handlingsdata. Utveckling har skett när det kommer till att förutspå översvämningar med hjälp av artificiella neuronnät (ANN). Trots de olika framstegen inom system för att förutspå översvämningar genom ANN, så har det varit mindre fokus på användningen av edge computing vilket skulle kunna förbättra effektivitet och tillförlitlighet. I detta examensarbete föreslås ett system för kortsiktig översvämningsförutsägelse genom IoT och ANN, där gissningsberäkningen utförs över en låg effekt edge enhet. Systemet övervakar sensordata från regn och vattennivå i realtid och förutspår översvämningsvattennivåer i förtid genom att använda långt korttidsminne. Systemet kan köras på batteri eftersom det använder låg effekt IoT-enheter och kommunikationsteknik. Resultaten från en utvärdering av en prototyp av systemet indikerar en bra prestanda när det kommer till noggrannhet att förutspå översvämningar och responstid. Användningen av ANN med edge computing kommer att förbättra effektiviteten av tidiga varningssystem för översvämningar i realtid genom att ta gissningsberäkningen närmare till där datan samlas.
Na, Jongwhoa. "Design and simulation of digital optical computing systems for artificial intelligence." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186989.
Full textWagy, Mark David. "Enabling Machine Science through Distributed Human Computing." ScholarWorks @ UVM, 2016. http://scholarworks.uvm.edu/graddis/618.
Full textHasanaj, Enis, Albert Aveler, and William Söder. "Cooperative edge deepfake detection." Thesis, Jönköping University, JTH, Avdelningen för datateknik och informatik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53790.
Full textAbd, Gaus Yona Falinie. "Artificial intelligence system for continuous affect estimation from naturalistic human expressions." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/16348.
Full textZhao, Haixiang. "Artificial Intelligence Models for Large Scale Buildings Energy Consumption Analysis." Phd thesis, Ecole Centrale Paris, 2011. http://tel.archives-ouvertes.fr/tel-00658767.
Full textAn, Hongyu. "Powering Next-Generation Artificial Intelligence by Designing Three-dimensional High-Performance Neuromorphic Computing System with Memristors." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/101838.
Full textDoctor of Philosophy
In this dissertation, the next-generation platform of artificial intelligence is explored by utilizing memristors to design a three-dimensional high-performance neuromorphic computing system. The low-variation memristors (fabricated by Virginia Tech) reduce the learning accuracy of the system significantly through adding heat dissipation layers. Moreover, three emerging neuromorphic architectures are proposed showing a path to realizing the next-generation platform of artificial intelligence with self-learning capability and high energy efficiency. At last, an Associative Memory Learning System is exhibited to reproduce an associative memory learning that remembers and correlates two concurrent events (pronunciation and shape of digits) together.
Beiko, Robert G. "Evolutionary computing strategies for the detection of conserved patterns in genomic DNA." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/29009.
Full textLanzarone, Lorenzo Biagio. "Manutenzione predittiva di macchinari industriali tramite tecniche di intelligenza artificiale: una valutazione sperimentale." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22853/.
Full textMaripi, Jagadish Kumar. "AN EFFECTIVE PARALLEL PARTICLE SWARM OPTIMIZATION ALGORITHM AND ITS PERFORMANCE EVALUATION." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/275.
Full textCaversan, Fábio Lopes. "Exploração de relações entre técnicas simbólicas e conexionistas da inteligência computacional." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-05092006-120232/.
Full textThis work consists of a contribution to the area of Computational Intelligence, relating to some of its main techniques: Fuzzy Computing and Neural Computing. These techniques are being used to solve problems that are too complex for traditional algorithmic approach or mathematical modeling. However, these problems are solved easly with the apparatus that composes the so-called human intelligence. The existence of relations, rules and transformations capable to transfer problems models from a domain to another, brings great advantages for the area of Computational Intelligence. Well established theories and models in one of the techniques can be used in others, for example, the various learning methods from Neural Computing and the use of expert knowledge capacity of Fuzzy Computing. Problems classically modeled in one technique can be seen from another point of view, possibiliting a better understanding and optimization of the solutions. An exploration of these relations is accomplished. Some previous works indicating the existence of some relations and models to develop the research work are presented. A platform for simulation and empirical data collection, for the explorations, is specified. Part of the platform was implemented, and simulations of a transformation from fuzzy to neural models had been carried through. The results of these experiments are presented.
Gao, Zhenning. "Parallel and Distributed Implementation of A Multilayer Perceptron Neural Network on A Wireless Sensor Network." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1383764269.
Full textDobrucki, Mikołaj. "Applications of Artificial Intelligence in Lighting Systems for Home Environments." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23548.
Full textRahman, Hasibur. "Distributed Intelligence-Assisted Autonomic Context-Information Management : A context-based approach to handling vast amounts of heterogeneous IoT data." Doctoral thesis, Stockholms universitet, Institutionen för data- och systemvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-149513.
Full textAt the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 7: Submitted.
Gui, Feng. "Development of a New Client-Server Architecture for Context Aware Mobile Computing." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/202.
Full textMelandri, Luca. "Introduction to Reservoir Computing Methods." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8268/.
Full textDwivedi, Y. K., L. Hughes, Elvira Ismagilova, G. Aarts, C. Coombs, T. Crick, Y. Duan, et al. "Artificial Intelligence (AI): Multidisciplinary Perspectives on Emerging Challenges, Opportunities, and Agenda for Research, Practice and Policy." Elsevier, 2019. http://hdl.handle.net/10454/17208.
Full textAs far back as the industrial revolution, significant development in technical innovation has succeeded in transforming numerous manual tasks and processes that had been in existence for decades where humans had reached the limits of physical capacity. Artificial Intelligence (AI) offers this same transformative potential for the augmentation and potential replacement of human tasks and activities within a wide range of industrial, intellectual and social applications. The pace of change for this new AI technological age is staggering, with new breakthroughs in algorithmic machine learning and autonomous decision-making, engendering new opportunities for continued innovation. The impact of AI could be significant, with industries ranging from: finance, healthcare, manufacturing, retail, supply chain, logistics and utilities, all potentially disrupted by the onset of AI technologies. The study brings together the collective insight from a number of leading expert contributors to highlight the significant opportunities, realistic assessment of impact, challenges and potential research agenda posed by the rapid emergence of AI within a number of domains: business and management, government, public sector, and science and technology. This research offers significant and timely insight to AI technology and its impact on the future of industry and society in general, whilst recognising the societal and industrial influence on pace and direction of AI development.
Püschel, Georg, and Frank J. Furrer. "Cognitive Computing: Collected Papers." Technische Universität Dresden, 2015. https://tud.qucosa.de/id/qucosa%3A28990.
Full textKulkarni, Manjari S. "Memristor-based Reservoir Computing." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/899.
Full textDai, Jing. "Reservoir-computing-based, biologically inspired artificial neural networks and their applications in power systems." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47646.
Full textAraújo, Ricardo Matsumura de. "Memetic networks : problem-solving with social network models." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/25515.
Full textSocial systems are increasingly relevant to computer science in general and artificial intelligence in particular. Such interest was first sparkled by agent-based systems where the social interaction of such agents can be relevant to the outcome produced. A more recent trend comes from the general area of Social Information Processing, Social Computing and other crowdsourced systems, which are characterized by computing systems composed of people and strong social interactions between them. The set of all social interactions and actors compose a social network, which may have strong influence on how effective the system can be. In this thesis, we explore the role of network structure in social systems aiming at solving problems, focusing on numerical and combinatorial optimization. We frame problem solving as a search for valid solutions in a state space and propose a model - the Memetic Network - that is able to perform search by using the exchange of information, named memes, between actors interacting in a social network. Such model is applied to a variety of scenarios and we show that the presence of a social network greatly improves the system capacity to find good solutions. In addition, we relate specific properties of many well-known networks to the behavior displayed by the proposed algorithms, resulting in a set of general rules that may improve the performance of such social systems. Finally, we show that the proposed algorithms can be competitive with traditional heuristic search algorithms in a number of scenarios.
Livi, Federico. "Supervised Learning with Graph Structured Data for Transprecision Computing." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19714/.
Full textFialho, Álvaro Roberto Silvestre. "Exploração de relações entre as técnicas nebulosas e evolutivas da inteligência computacional." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-26072007-173902/.
Full textThis work addressed a search of relations, rules and transformations between two Computational Intelligence constituent methodologies - Fuzzy Computing and Evolutionary Computing. The existence of these relations changes the actual way of solutions modeling that uses these methodologies, allowing the utilization of well established theories and models of one technique by the other in a more robust, intrinsic and transparent way. Besides the research and systematization of points that indicate the existence of relations between the two methodologies, a model to guide these exploration was proposed. By this model analysis and by the bibliographic revision made, punctual transformations were pointed out, and further consolidated through practical experiments: a Knowledge Base (KB) of a Fuzzy Logic Controller was created and modified automatically by a Genetic Algorithm. With the developed approach, besides the creation of KBs, it became possible to automatically insert new \"desired behaviors\" to existent KBs. The results of such experiments, realized through a computational platform specified and implemented to this task, were presented and analyzed.
Fountoukidis, Dimitrios P. "Adaptive management of emerging battlefield network." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FFountoukidis.pdf.
Full textThesis advisor(s): Alex Bordetsky, John Hiles. Includes bibliographical references. Also available online.
Martin, Olga J. "Retranslation a problem in computing with perceptions /." Diss., Online access via UMI:, 2008.
Find full textIncludes bibliographical references.
DeBruyne, Sandra DeBruyne. "Bio-Inspired Evolutionary Algorithms for Multi-Objective Optimization Applied to Engineering Applications." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1542282067378143.
Full textSHERRON, CATHERINE ELIZABETH. "CRITICAL VALUES: FEMINIST PHILOSOPHY OF SCIENCE AND THE COMPUTING SCIENCES." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054218563.
Full textYacoubi, Alya. "Vers des agents conversationnels capables de réguler leurs émotions : un modèle informatique des tendances à l’action." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS378/document.
Full textConversational virtual agents with social behavior are often based on at least two different disciplines : computer science and psychology. In most cases, psychological findings are converted into computational mechanisms in order to make agents look and behave in a believable manner. In this work, we aim at increasing conversational agents’ belivielibity and making human-agent interaction more natural by modelling emotions. More precisely, we are interested in task-oriented conversational agents, which are used as a custumer-relationship channel to respond to users request. We propose an affective model of emotional responses’ generation and control during a task-oriented interaction. Our proposed model is based, on one hand, on the theory of Action Tendencies (AT) in psychology to generate emotional responses during the interaction. On the other hand, the emotional control mechanism is inspired from social emotion regulation in empirical psychology. Both mechanisms use agent’s goals, beliefs and ideals. This model has been implemented in an agent architecture endowed with a natural language processing engine developed by the company DAVI. In order to confirm the relevance of our approach, we realized several experimental studies. The first was about validating verbal expressions of action tendency in a human-agent dialogue. In the second, we studied the impact of different emotional regulation strategies on the agent perception by the user. This study allowed us to design a social regulation algorithm based on theoretical and empirical findings. Finally, the third study focuses on the evaluation of emotional agents in real-time interactions. Our results show that the regulation process contributes in increasing the credibility and perceived competence of agents as well as in improving the interaction. Our results highlight the need to take into consideration of the two complementary emotional mechanisms : the generation and regulation of emotional responses. They open perspectives on different ways of managing emotions and their impact on the perception of the agent
Ostheimer, Julia. "Human-in-the-loop Computing : Design Principles for Machine Learning Algorithms of Hybrid Intelligence." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-94051.
Full textKruppa, Michael. "Migrating characters: effective user guidance in instrumented environments." Berlin Aka, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2898568&prov=M&dok_var=1&dok_ext=htm.
Full textZhong, Christopher. "Modeling humans as peers and supervisors in computing systems through runtime models." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/14047.
Full textDepartment of Computing and Information Sciences
Scott A. DeLoach
There is a growing demand for more effective integration of humans and computing systems, specifically in multiagent and multirobot systems. There are two aspects to consider in human integration: (1) the ability to control an arbitrary number of robots (particularly heterogeneous robots) and (2) integrating humans as peers in computing systems instead of being just users or supervisors. With traditional supervisory control of multirobot systems, the number of robots that a human can manage effectively is between four and six [17]. A limitation of traditional supervisory control is that the human must interact individually with each robot, which limits the upper-bound on the number of robots that a human can control effectively. In this work, I define the concept of "organizational control" together with an autonomous mechanism that can perform task allocation and other low-level housekeeping duties, which significantly reduces the need for the human to interact with individual robots. Humans are very versatile and robust in the types of tasks they can accomplish. However, failures in computing systems are common and thus redundancies are included to mitigate the chance of failure. When all redundancies have failed, system failure will occur and the computing system will be unable to accomplish its tasks. One way to further reduce the chance of a system failure is to integrate humans as peer "agents" in the computing system. As part of the system, humans can be assigned tasks that would have been impossible to complete due to failures.
Littlefield, William Joseph II. "Abductive Humanism: Comparative Advantages of Artificial Intelligence and Human Cognition According to Logical Inference." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1554480107736449.
Full textNoble, Diego Vrague. "The impact of social context in social problem solving." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/115613.
Full textOur inability to perceive and understand all the factors that account for real-world phenomena forces us to rely on clues when reasoning and making decisions about the world. Clues can be internal such as our psychological state and our motivations; or external, such as the resources available, the physical environment, the social environment, etc. The social environment, or social context, encompasses the set of relationships and cultural settings by which we interact and function in a society. Much of our thinking is influenced by the social environment and we constantly change the way we solve problems in response to our social environment. Nevertheless, this human trait has not been thoughtfully investigated by current computational models of human social problem-solving, for these models have lacked the heterogeneity and self-adaptive behavior observed in humans. In this work, we address this issue by investigating the impact of social context in social problem solving by means of extensive numerical simulations using a modified social model. We show evidences that social context plays a key role in how the system behaves and performs. More precisely, we show that the centrality of an agent in the network is an unreliable predictor the agent’s contribution when this agent can change its problem-solving strategy according to social context. Another finding is that social context information can be used to improve the convergence speed of the group to good solutions and that diversity in search strategies does not necessarily translates into diversity in solutions. We also determine that even if nodes perceive social context in same way, the way they react to it may lead to different outcomes along the search process. Together, these results contribute to the understanding that social context does indeed impact in social problem-solving. We conclude discussing the overall impact of this work and pointing future directions.
Green, Robert C. II. "Novel Computational Methods for the Reliability Evaluation of Composite Power Systems using Computational Intelligence and High Performance Computing Techniques." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1338894641.
Full textWild, Rafael. "Agências do artificial e do humano : uma análise de noções do humano na inteligência artificial a partir de perspectivas sociais e culturais." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/34146.
Full textThis thesis addresses notions of human that are present in computer-based systems built by researchers in the area of Artificial Intelligence. Participant observation was performed in fieldwork within two academic research groups in Artificial Intelligence; one of such groups is Brazilian, while the other is Portuguese. The focus is on research projects displaying a pedagogical orientation. This thesis aims at understanding meanings and practices current in the groups, understood as local cultural settings, and the logics that underpin such meanings and practices. The technological artifacts that comprises their work, computer systems invested of certain functional characteristics, were interrogated. Categories such as emotion, knowledge, culture, and agency were followed as they are conceptualized and deployed as human traits, not only as textual definitions, but also as artefactual materializations and expectations about how users should encounter these artifacts. As a methodological analytics, these practices and notions were systematically compared with alternative perspectives, drawn from the theoretical references of the Science and Technological Studies (with special mention to B. Latour, L. Suchman and D. Forsythe). The validity and legitimacy of the positions of the group were not denied or devalued in this analytical process, but instead subjected to inquiry from different perspectives. The aims are making visible the relation of this validity and legitimacy with specific, situated processes of production and legitimation, and proposing that these processes could be considered in other, different ways.
Orazi, Filippo. "Quantum machine learning: development and evaluation of the Multiple Aggregator Quantum Algorithm." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25062/.
Full textVinckier, Quentin. "Analog bio-inspired photonic processors based on the reservoir computing paradigm." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/237069.
Full textDoctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
Neto, Ary Fagundes Bressane. "Uma arquitetura para agentes inteligentes com personalidade e emoção." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-28072010-121443/.
Full textOne of the main motivations of Artificial Intelligence in the context of the digital entertainment systems is to create characters that are adaptable to new situations, unpredictable, fast learners, enable with memory of past situations and a variety of consistent and convincing behavior over time. According to recent studies conducted in the fields of Neuroscience and Psychology, the ability to solve problems is not only related to the capacity to manipulate symbols, but also to the ability to explore the environment and to engage into social interaction, which can be expressed as emotional phenomena. The results of these studies confirm the key role the personality and emotions play in the activities of perception, attention, planning, reasoning, creativity, learning, memory and decision making. When modules for handling personality and emotion, are incorporated in a theory of agents, it is possible to build Believable Agents. The main objective of this work is to develop and implement an intelligent agent architecture to build synthetic characters whose affective states influence their cognitive activities. To develop such architecture the BDI model (Beliefs, Desires and Intentions) was used as a basis, to which an Affective Module was included. The Affective Module consists of three sub-modules (Personality, Mood and Emotion), which influence the cognitive activities of perception, memory and decision making. Finally, two proofs of concept were built: the simulation of the problem of ``Iterated Prisoner\'s Dilemma\'\' and the computerized version of the ``Memory Game.\'\' The construction of these experiments allowed to evaluate empirically the influence of personality, mood and emotion in cognitive activities of agents and consequently in their behavior. The results show that using the proposed architecture one can build agents with more consistent, adaptive and cooperative behaviors when compared to agents built with architectures whose affective states do not influence their cognitive activities. It also produces a behavior that is closer to a human user than that of optimal or random behavior. This evidence of success, presented in the obtained results, show that agents built with the proposed architecture indicate an advance towards the development of Believable Agents.
Ushie, Ogri James. "Intelligent optimisation of analogue circuits using particle swarm optimisation, genetic programming and genetic folding." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13643.
Full textRendo, Fernandez Jose Ignacio. "Semantic interoperability in ad-hoc computing environments." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/3072.
Full textHuhtinen, J. (Jouni). "Utilization of neural network and agent technology combination for distributed intelligent applications and services." Doctoral thesis, University of Oulu, 2005. http://urn.fi/urn:isbn:9514278550.
Full textCosta, Filipe de Oliveira 1987. "Atribuição de fonte em imagens provenientes de câmeras digitais." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275692.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação
Made available in DSpace on 2018-08-21T01:46:22Z (GMT). No. of bitstreams: 1 Costa_FilipedeOliveira_M.pdf: 4756629 bytes, checksum: db25cfc98fbdb67c2eee785a37969909 (MD5) Previous issue date: 2012
Resumo: Verificar a integridade e a autenticidade de imagens digitais é de fundamental importância quando estas podem ser apresentadas como evidência em uma corte de justiça. Uma maneira de se realizar esta verificação é identificar a câmera digital que capturou tais imagens. Neste trabalho, nós discutimos abordagens que permitem identificar se uma imagem sob investigação foi ou não capturada por uma determinada câmera digital. A pesquisa foi realizada segundo duas óticas: (1) verificação, em que o objetivo é verificar se uma determinada câmera, de fato, capturou uma dada imagem; e (2) reconhecimento, em que o foco é verificar se uma determinada imagem foi obtida por alguma câmera (se alguma) dentro de um conjunto limitado de câmeras e identificar, em caso afirmativo, o dispositivo específico que efetuou a captura. O estudo destas abordagens foi realizado considerando um cenário aberto (open-set), no qual nem sempre temos acesso a alguns dos dispositivos em questão. Neste trabalho, tratamos, também, do problema de correspondência entre dispositivos, em que o objetivo é verificar se um par de imagens foi gerado por uma mesma câmera. Isto pode ser útil para agrupar conjuntos de imagens de acordo com sua fonte quando não se possui qualquer informação sobre possíveis dispositivos de origem. As abordagens propostas apresentaram bons resultados, mostrando-se capazes de identificar o dispositivo específico utilizado na captura de uma imagem, e não somente sua marca
Abstract: Image's integrity and authenticity verification is paramount when it comes to a court of law. Just like we do in ballistics tests when we match a gun to its bullets, we can identify a given digital camera that acquired an image under investigation. In this work, we discussed approaches for identifying whether or not a given image under investigation was captured by a specific digital camera. We carried out the research under two vantage points: (1) verification, in which we are interested in verifying whether or not a given camera captured an image under investigation; and (2) recognition, in which we want to verify if an image was captured by a given camera (if any) from a pool of devices, and to point out such a camera. We performed this investigation considering an open set scenario, under which we can not rely on the assumption of full access to all of the investigated devices. We also tried to solve the device linking problem, where we aim at verifying if an image pair was generated by the same camera, without any information about the source of images. Our approaches reported good results, in terms of being capable of identifying the specific device that captured a given image including its model, brand, and even serial number
Mestrado
Ciência da Computação
Mestre em Ciência da Computação
Longo, Eugenio. "AI e IoT: contesto e stato dell’arte." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2022.
Find full textMakasi, Tendai. "Cognitive computing systems and public value: The case of chatbots and public service delivery." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/230002/1/Tendai_Makasi_Thesis.pdf.
Full text