Rozprawy doktorskie na temat „Agent à usage général”
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Gallouedec, Quentin. "Toward the generalization of reinforcement learning". Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2024. http://www.theses.fr/2024ECDL0013.
Pełny tekst źródłaConventional Reinforcement Learning (RL) involves training a unimodal agent on a single, well-defined task, guided by a gradient-optimized reward signal. This framework does not allow us to envisage a learning agent adapted to real-world problems involving diverse modality streams, multiple tasks, often poorly defined, sometimes not defined at all. Hence, we advocate for transitioning towards a more general framework, aiming to create RL algorithms that more inherently versatile.To advance in this direction, we identify two primary areas of focus. The first aspect involves improving exploration, enabling the agent to learn from the environment with reduced dependence on the reward signal. We present Latent Go-Explore (LGE), an extension of the Go-Explore algorithm. While Go-Explore achieved impressive results, it was constrained by domain-specific knowledge. LGE overcomes these limitations, offering wider applicability within a general framework. In various tested environments, LGE consistently outperforms the baselines, showcasing its enhanced effectiveness and versatility. The second focus is to design a general-purpose agent that can operate in a variety of environments, thus involving a multimodal structure and even transcending the conventional sequential framework of RL. We introduce Jack of All Trades (JAT), a multimodal Transformer-based architecture uniquely tailored to sequential decision tasks. Using a single set of weights, JAT demonstrates robustness and versatility, competing its unique baseline on several RL benchmarks and even showing promising performance on vision and textual tasks. We believe that these two contributions are a valuable step towards a more general approach to RL. In addition, we present other methodological and technical advances that are closely related to our core research question. The first is the introduction of a set of sparsely rewarded simulated robotic environments designed to provide the community with the necessary tools for learning under conditions of low supervision. Notably, three years after its introduction, this contribution has been widely adopted by the community and continues to receive active maintenance and support. On the other hand, we present Open RL Benchmark, our pioneering initiative to provide a comprehensive and fully tracked set of RL experiments, going beyond typical data to include all algorithm-specific and system metrics. This benchmark aims to improve research efficiency by providing out-of-the-box RL data and facilitating accurate reproducibility of experiments. With its community-driven approach, it has quickly become an important resource, documenting over 25,000 runs.These technical and methodological advances, along with the scientific contributions described above, are intended to promote a more general approach to Reinforcement Learning and, we hope, represent a meaningful step toward the eventual development of a more operative RL agent
Kocon, Sylvain. "Conception d'un calculateur massivement parallèle à usage général à base de technologies optiques et optoélectroniques 3D". Toulouse, ENSAE, 1994. http://www.theses.fr/1994ESAE0011.
Pełny tekst źródłaWillenberg, Darren. "Quantifying MyCiTi supply usage via Big Data and Agent Based Modelling". Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27362.
Pełny tekst źródłaVaraine, Barbara. "Le procureur général de Lyon, correspondant et agent du Ministère de la Justice entre 1814 et 1870 : l'oeil du gouvernement". Dijon, 2002. http://www.theses.fr/2002DIJOD006.
Pełny tekst źródłaFrom 1814 to 1870, the letters sent by the public prosecutor of Lyon to the chancellor show an unknown part of his mission : supervision and government's propaganda. He supervises the citizens and everyone who takes part in Justice; he interferes in the careers and gives all his informations to the government to avoid insurrections in his counties: Ain, Loire, Rhône. He keeps an eye on every opponent. Papers, always supervised, are sometimes muzzled. He takes part in march of elections and supports the official candidates. He represses actively the opponents, for example by taking part in outstanding jurisdictions. He knows everything on every magistrate and everything that happens in his counties, regarding political and moral situation thanks to more and more accurate methods. By his speeches, his letters and pleas, he is to be the particular Chancelor's agent
Tufail, M. "The extraction and usage of patterns from video data to support multi-agent based simulation". Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3008120/.
Pełny tekst źródłaBayir, Murat Ali. "A New Reactive Method For Processing Web Usage Data". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12607323/index.pdf.
Pełny tekst źródłaSmart-SRA'
is introduced. Web usage mining is a type of web mining, which exploits data mining techniques to discover valuable information from navigations of Web users. As in classical data mining, data processing and pattern discovery are the main issues in web usage mining. The first phase of the web usage mining is the data processing phase including session reconstruction. Session reconstruction is the most important task of web usage mining since it directly affects the quality of the extracted frequent patterns at the final step, significantly. Session reconstruction methods can be classified into two categories, namely '
reactive'
and '
proactive'
with respect to the data source and the data processing time. If the user requests are processed after the server handles them, this technique is called as &lsquo
reactive&rsquo
, while in &lsquo
proactive&rsquo
strategies this processing occurs during the interactive browsing of the web site. Smart-SRA is a reactive session reconstruction techique, which uses web log data and the site topology. In order to compare Smart-SRA with previous reactive methods, a web agent simulator has been developed. Our agent simulator models behavior of web users and generates web user navigations as well as the log data kept by the web server. In this way, the actual user sessions will be known and the successes of different techniques can be compared. In this thesis, it is shown that the sessions generated by Smart-SRA are more accurate than the sessions constructed by previous heuristics.
Blanchet, Marine. "Nouveaux dérivés aminostéroïdiens à usage antimicrobien en médecine vétérinaire". Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0062.
Pełny tekst źródłaCurrently, the treatment of infectious pathologies in cattle and pets is threatened by the growing antimicrobial resistance and the development of multidrug-resistant bacteria. Thus it is necessary for the veterinary pharmaceutical firms to develop new lines of antibacterial agents. In this context, some natural polyaminosterols such as squalamine have gained interest due to their potent antimicrobial activities. Thus the aim of this PhD work is to provide an answer in the treatment of mastitis (cattle) and otitis/pyoderma (dog) by the development of a new class of synthetic polyaminosterols with a broad spectrum of antibacterial activity. In this purpose, a chemical library of original compounds has been prepared starting from various bile acids by using unprecedented synthesis procedures. These compounds were evaluated for their in vitro cytotoxicity on CHO cells as well as their antibacterial activities against Gram-positive and Gram-negative bacteria and we have establish the in vitro proof of concept of the therapeutic potential of this family of molecules as antibacterial agent or antibiotic adjuvant. Additional investigations were then conducted on one of these novel derivatives namely claramine A1 to deepen knowledge of its mechanism of action and showed that claramine A1 acts on the physical integrity of bacterial membranes and the efflux performance of AcrAB-TolC pumps. Based on the results of claramine A1, it finally appears that these new polyaminosterol derivatives possessing a non-classical mode of action pertain to a new class of antibacterial agents and could constitute a substitute for traditional antibiotics in veterinary medicine
Boidou, Blaise Noël. "Facteurs d'influence de l'impact d'un usage partagé du tableau blanc interactif sur la performance scolaire dans un établissement d'enseignement secondaire général de Côte-d'Ivoire". Thesis, Cergy-Pontoise, 2019. http://www.theses.fr/2019CERG1003.
Pełny tekst źródłaThanks to digital technology, many devices have appeared in classrooms and offer the possibility of multiplying teaching aids in the teaching / learning process. The interactive whiteboard (TBI / TNI) is one of them. Thus, it seems judicious to question the factors that influence the effect of such a device on school performance, given the contradictory results of scientific studies on the subject.This doctoral research work is a mixed research, combining both quantitative and qualitative data. As a result of the literature review, she tries to answer the following question: What are the factors that influence the impact of the use of the Interactive Whiteboard (IWB) on student performance?Prior to the implementation of experimental research, initial assumptions assumed that in an interactive whiteboard-mediated teaching / learning process, students' academic performance is influenced by the student's learning style of learning. on the one hand, and on the other, that it is a function of their degree of motivation with regard to the interactive whiteboard.In order to compare these above-mentioned hypotheses with the reality on the ground, a two-phase experimental procedure consisting of a teaching / learning situation without the interactive whiteboard and then with the interactive whiteboard was conducted in order to measure student academic performance.To collect the data, the tools that are the questionnaire, a test of identification of the learning style according to the model VAK (Visual, Auditory, Kinesthetic), the semi-directed individual interviews, a scale of motivation and observations in situ have been used.Following the analysis of the results obtained from the nonparametric alternatives of the Khi2 test and Student's t test for paired samples, significant differences are observed in the performance of visual learning style students, unlike students with other major learning styles.The impact of the intervention of the whiteboard in the teaching-learning process would also depend on the student's gender and motivation towards the whiteboard. Indeed, we find that male students and students with a self-determined motivation for the technological tool have seen their performance increase significantly
Mueller, Nicole. "The agent and related categories in early Welsh and early Irish with special reference to narrative texts : aspects of marking and usage". Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334143.
Pełny tekst źródłaHilal, Alaa. "Le statut du terme dans le dictionnaire général : l’exemple du dictionnaire monolingue français, monolingue arabe et bilingue français-arabe". Thesis, Lyon 2, 2010. http://www.theses.fr/2010LYO20032.
Pełny tekst źródłaThis research aims to study the status - place and treatment - of scientific and technical terms in general dictionaries. General dictionaries concentrate on words (or general language lexicon) whereas specialised dictionaries focus on terms (or specialised language lexicon). However, general dictionaries include, in addition to words, a large number of terms. These terms, which are simultaneously included in both dictionaries types, are the subject of this study. Thus, it proposes to examine the following aspects of the term: macrostructural - choice and location - and mircostructual - labelling, definition and exemplification as well as the term’s equivalent in the Arabic bilingual dictionaries. The terms which are used in this research are from various domains. They are extracted from a trilingual English-French-Arabic corpus which consists of texts published by the UN. The status of these terms is analysed according to two monolingual french dictionaries, two monolingual arabic dictionaries and two bilingual french-arabic dictionaries
Lee, Seina Park. "A Multicenter assessment of the on-label and off-label usage of erythropoietic agents( epoetin alfa and darbepoetin alfa) in critically ill ICU patients : A retrospective study". VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd_retro/109.
Pełny tekst źródłaSkopal, Aleš. "Monitorování aktivit uživatelů na pracovních stanicích". Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2009. http://www.nusl.cz/ntk/nusl-236644.
Pełny tekst źródłaTamarit, Daniel. "Evolution of symbiotic lineages and the origin of new traits". Doctoral thesis, Uppsala universitet, Molekylär evolution, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-301939.
Pełny tekst źródłaMarinho, Leandro Balby. "UM FRAMEWORK MULTIAGENTE PARA A PERSONALIZAÇÃO DA WEB BASEADO NA MODELAGEM DE USUÁRIOS E NA MINERAÇÃO DE USO". Universidade Federal do Maranhão, 2005. http://tedebc.ufma.br:8080/jspui/handle/tede/379.
Pełny tekst źródłaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
With the continuous migration of a great diversity of services to the Web, the need for characterizing the users in this environment increases. For that, components that can continually perceive their environment and rapidly adapt to its changes are required, thus reflecting the changes in the user behaviors. Among the existent approaches for modeling Web users, Web usage mining appears as one of the most interesting. Through Web usage mining a user can be implicitly and automatically modeled through his/her usage data, generated from his/her interaction with the Web. This work proposes ONTOWUM, a user modeling and usage mining-based multi-agent framework for Web personalization. The framework comprises two layers, where four agents are distributed according to their responsibilities: Interface agent, responsible for both capturing the user browsing information and performing the adaptation effects; User Modeling agent, responsible for creating and updating both user models and adaptation models; Acquirer agent, responsible for creating and updating an usage data repository containing past user models; and finally, Miner agent, responsible for both discovering group of users with similar browsing behavior and classifying the current user in these groups. The Interface and User modeling agents belong to the user information-processing layer, and the Acquirer and Miner agents belong to the pattern-discovering layer. The methodology and tool used to guide the analyses and design phases were MADEM ( Multi-Agent Domain Engineering Methodology ) and ONTOMADEM, respectively. For the implementation of ONTOWUM it was used the JADE framework.
Com a incessante migração das mais diversas categorias de serviços ao ambiente Web, a necessidade de caracterizar os usuários nesse ambiente nunca foi tão presente. Para isso, são necessários componentes que tenham a habilidade de continuamente perceber o ambiente e rapidamente se adaptarem a ele, refletindo assim as próprias mudanças no comportamento do usuário. Dentre as abordagens existentes para a modelagem de usuários da Web, a mineração de uso da Web figura entre as mais interessantes, pois através dessa abordagem pode-se modelar o usuário implicitamente através dos dados de uso gerados através da sua interação com a Web. Este trabalho propõe ONTOMUW", um framework multiagente para a personalização da Web baseado na modelagem de usuários e na mineração de uso. O framework é composto por duas camadas onde se distribuem quatro agentes de acordo com suas responsabilidades: agente Interfaceador, responsável tanto pela captura das informações provenientes da navegação do usuário quanto pela execução da adaptação; agente Modelador, responsável por criar e atualizar tanto modelos de usuários quanto modelos de adaptação; agente Aquisitor, responsável pela criação e manutenção de um repositório de dados de uso contendo os modelos de usuários passados; e, finalmente, agente Minerador, responsável tanto pela descoberta de grupos de usuários com comportamento de navegação similar quanto pela classificação do usuário corrente nos grupos descobertos. Os agentes Interfaceador e Modelador compõem a camada de processamento de informações do usuário, enquanto que os agentes Aquisitor e Minerador compõem a camada de descoberta de padrões. A metodologia e ferramenta utilizadas para guiar o processo de análise e projeto de domínio do ONTOMUW foram a MADEM ( Multi-Agent Domain Engineering Methodology ) e a ONTOMADEM respectivamente. Para a implementação do framework utilizou-se o ambiente JADE.
Zumpe, Martin Kai. "Stabilité macroéconomique, apprentissage et politique monétaire : une approche comparative : modélisation DSGE versus modélisation multi-agents". Thesis, Bordeaux 4, 2012. http://www.theses.fr/2012BOR40022/document.
Pełny tekst źródłaThis thesis analyses the role of learning in two different modelling frameworks. In the new canonicalmodel with adaptive learning, the most remarkable characteristics of the learning dynamics deal withthe capacity of monetary policy rules to guaranty convergence to the rational expectations equilibrium.The transmission mechanism of the monetary policy is based on the substitution effect associated to theconsumption channel. In the case of an agent-based model which relaxes some restrictive assumptionsof the new canonical model - but is endowed with a similar structure - aggregate variables evolve atsome distance from the rational expectations equilibrium. Monetary policy has a marginal impact onthe agregated variables via the wealth effect of the consumption channel. When agents learn accordingto an evolutionnary social learning process, the economy converges to regions of low economic activity.The introduction of a process where agents learn individually by using their mental models induces lessdepressive learning dynamics. These differences between the two modelling frameworks show that thegeneralisation of the results of the new canonical model is not easy to achieve
Boivin, Sébastien. "Le Commissariat général à l'information comme agent de renforcement du moral français". Thèse, 2006. http://hdl.handle.net/1866/17917.
Pełny tekst źródłaChen, Chun-Ying, i 陳俊穎. "A Study of Recommend Agent Using Online Incremental Web Usage Mining". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/99426320995010090667.
Pełny tekst źródła國立雲林科技大學
資訊管理系碩士班
92
How to attract the customer to visit as well as how to promote user''s degree of satisfaction is the website gain competitive advantage main keys.The recommendation system can be said a method which can solve, but the present Web Usage Mining Recommendation, all must aim at the website the overall content to design a system to conform to the oneself website recommendation system, but if this system must be used in other websites, then the system must change formula suitability to make this system to be suitable other systems, and provides the customer the most recent information to be possible to say is the count for much, but at present certainly has not made the immediate renewal in view of the entire website material to cause to be unable to recommend the recent information to give the customer. In this study, we proposed a new online incremental web usage mining recommend agent’s methodology. This recommend agent uses incremental mining methodology and uses the website directory structure property to solve the question that as the website data change, the recommendation system also must be able to update. Because this recommend agent uses website directory structure, the agent can maintain the entire recommendation structure immediately, and enables this recommendation system prompt response and renewal recommendation homepage content, also because uses website directory recommendation method therefore the recommendation system can be suitable for the major part website. For three weeks of the experiment, the evaluation result show that: In the perspective of system executing performance, the browsing recommendation ratio was 91.36%, and the average of overall browsing recommendation time was 4.78 seconds, and the average of overall browsing mining time was 18.46 minutes. In the perspective of system recommendation benefit, the overall recommendation precision was 49.5%,and the overall recommendation coverage was 56.7%,and the overall F1 was 52.8%.
Lin, Kai-Tze, i 林凱澤. "The Research of Online Incremental Web Usage Mining Recommend Agent Considering Time Factor". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/08570845737801142628.
Pełny tekst źródła國立雲林科技大學
資訊管理系碩士班
93
To be an outstanding web site, the satisfaction of users is critical. Recommending system is one of the solutions of raising user satisfaction. The mechanisms commonly used by mining recommend system at present are association rules, clustering, classification, and sequence patterns. These technologies are aim to the relationship among web pages, but they omit the time factor. That mentioned above will result in web pages that used to be popular being recommended even if they are out-of-date, and therefore lack of recommendation novelty. In this research, we improve incremental web usage mining recommending system by applying time consideration. We modified the “second chance” method of virtual memory page replacing algorithms to suit recommending system. By giving chances to web pages, we can take novelty and user interests into account simultaneously. We implemented a recommend system and conducted a four-week experiment. In the perspective of system performance, the browsing recommendation ratio was 93.84%, the average of overall browsing recommendation time was 0.059 seconds, and the average of overall browsing mining time was 33.162 minutes. In the perspective of system recommendation benefit, the overall recommendation precision was 43.1%, the overall recommendation coverage was 50.9%, and the overall F1 was 46.7%.
Oosthuizen, Ockmer Louren. "A multi-agent collaborative personalized web mining system model". Thesis, 2008. http://hdl.handle.net/10210/508.
Pełny tekst źródłaProf. E.M. Ehlers
Kuan, Yi-Shiuan, i 官詣軒. "On Specifying Design Information for Distributed In-house Design Agent: Using Japanese Animation Cartoon Actors Design and Usage as Example". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/87374522231034207121.
Pełny tekst źródła國立臺灣師範大學
設計研究所
95
In the face of the globalization and market trend, how to extract effective design alternatives from market information and to present a contemporary design process and information system is an important subject. The research objective is to study the statement model and remote design information integration, and then apply the research results to creation. In the process of product development and selling, issues like brand image, market position and design style will be discussed. Meanwhile, consumer behavior is often the result of personal values and life style. In the design process the definition of target market and target consumers’ needs must be ascertained. This study looks into both marketing research and life style and collects relevant information by literature review, interview, and field study. After that, the study creates a statement procedure of remote design information and a fundamental framework of information platform. While learning consumers’ demands for their life from all aspects, designers can recognize the features and cultures of local consumers’ life style and develop their design strategies in accordance with the target consumer’ characteristics, features and preferences. Through the platform, designers combine the information of remote markets for a collaborative design and for the ratiocination of future trend and focus. This study has an insight into Japanese comics and anime and otaku’s life style to testify the above theories and present the influences Japanese comics and anime has on Taiwanese as the reference of future practice and study.
Černá, Kateřina. "Operativně pátrací prostředky". Master's thesis, 2020. http://www.nusl.cz/ntk/nusl-435549.
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