Letteratura scientifica selezionata sul tema "Découverte basée sur les données"
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Articoli di riviste sul tema "Découverte basée sur les données"
Algrain, Isabelle. "Un exemple de genre fluide dans la nécropole du Céramique ?" Aux frontières des genres, n. 5 (15 dicembre 2021): 27–36. http://dx.doi.org/10.35562/frontieres.849.
Testo completoCroix, David de la, e Alice Fabre. "À la découverte des professeurs de l’ancienne université d’Aix, de ses origines à 1793". Annales du Midi : revue archéologique, historique et philologique de la France méridionale 131, n. 307 (2019): 379–402. http://dx.doi.org/10.3406/anami.2019.9001.
Testo completoPalamuthusingam, Dharmenaan, Frank Quigley e Jonathan Golledge. "Conséquences de la découverte d'une sténose carotidienne non significative basées sur les données d'un centre vasculaire régional australien". Annales de Chirurgie Vasculaire 25, n. 8 (novembre 2011): 1119–25. http://dx.doi.org/10.1016/j.acvfr.2013.02.029.
Testo completoConstantin, Anastasia, Alfonsina Faya Robles e Emmanuelle Rial-Sebbag. "Chapitre 5. From individuals to social: The needs for a global ethics overview in pharmacogenomics". Journal international de bioéthique et d'éthique des sciences Vol. 34, n. 3 (14 febbraio 2024): 85–102. http://dx.doi.org/10.3917/jibes.343.0085.
Testo completoAnderson, Sharon, Norah Keating e Donna Wilson. "Reconciling Marriage and Care after Stroke". Canadian Journal on Aging / La Revue canadienne du vieillissement 36, n. 3 (3 luglio 2017): 386–401. http://dx.doi.org/10.1017/s0714980817000241.
Testo completoRichard, M., I. Charlet, X. Aimé e M. O. Krebs. "Enrichir les classifications en psychiatrie par les données textuelles : création d’une ontologie de la psychiatrie". European Psychiatry 29, S3 (novembre 2014): 542–43. http://dx.doi.org/10.1016/j.eurpsy.2014.09.323.
Testo completoTraoré, N'gna. "« L'or ne brille pas pour tous les Maliens » : gouvernance et politique minières au prisme du débat public et des mouvements de contestation". Mande Studies 24, n. 1 (2022): 51–72. http://dx.doi.org/10.2979/mnd.2022.a908469.
Testo completoTraoré, N'gna. "« L'or ne brille pas pour tous les Maliens » : gouvernance et politique minières au prisme du débat public et des mouvements de contestation". Mande Studies 24, n. 1 (2022): 51–72. http://dx.doi.org/10.2979/mande.24.1.04.
Testo completoHugonnot, Vincent, Emeline Cadé e Laurie Girard. "Première contribution à la connaissance des bryophytes et des bryocénoses de la moyenne vallée de la Loire : cas de la Réserve Naturelle Régionale Val de Loire Bourbonnais (Allier)". BIOM - Revue scientifique pour la biodiversité du Massif central 4, n. 1 (23 dicembre 2023): 55–66. http://dx.doi.org/10.52497/biom.v4i1.331.
Testo completoTam, Frank Wai-ming, e Sophia Zhao-qin Zhang. "The Hazards of Growing Up: A Study of the Changing Mechanisms of Bullying Among Girls in Shenzhen". Alberta Journal of Educational Research 58, n. 1 (30 maggio 2012): 17–40. http://dx.doi.org/10.55016/ojs/ajer.v58i1.55555.
Testo completoTesi sul tema "Découverte basée sur les données"
Pierret, Jean-Dominique. "Méthodologie et structuration d'un outil de découverte de connaissances basé sur la littérature biomédicale : une application basée sur l'exploitation du MeSH". Toulon, 2006. http://tel.archives-ouvertes.fr/tel-00011704.
Testo completoThe information available in bibliographic databases is dated and validated by a long process and becomes not very innovative. Usually bibliographic databases are consultated in a boolean way. The result of a request represente is a set of known which do not bring any additional novelty. In 1985 Don Swanson proposed an original method to draw out innovative information from bibliographic databases. His reasoning is based on systematic use of the biomedical literature to draw the latent connections between different well established knowledges. He demonstrated unsuspected potential of bibliographic databases in knowledge discovery. The value of his work did not lie in the nature of the available information but consisted in the methodology he used. This general methodology was mainly applied on validated and structured information that is bibliographic information. We propose to test the robustness of Swanson's theory by setting out the methods inspired by this theory. These methods led to the same conclusions as Don Swanson's ones. Then we explain how we developed a knowledge discovery system based on the literature available from public biomedical information sources
Pierret, Jean-Dominique. "Methodologie et structuration d'un outil de decouverte de connaissances base sur la litterture biomedicale : une application basee sur le MeSH". Phd thesis, Université du Sud Toulon Var, 2006. http://tel.archives-ouvertes.fr/tel-00011704.
Testo completoPourtant, en 1985, Don Swanson propose une méthode originale pour extraire de bases de donnés une information innovante. Son raisonnement est basé sur une exploitation systématique de la littérature biomédicale afin de dégager des connexions latentes entre différentes connaissances bien établies. Ses travaux montrent le potentiel insoupçonné des bases bibliographiques dans la révélation et la découverte de connaissances. Cet intérêt ne tient pas tant à la nature de l'information disponible qu'à la méthodologie utilisée. Cette méthodologie générale s'applique de façon privilégiée dans un environnement d'information validée et structurée ce qui est le cas de l'information bibliographique. Nous proposons de tester la robustesse de la théorie de Swanson en présentant les méthodes qu'elle a inspirées et qui conduisent toutes aux mêmes conclusions. Nous exposons ensuite, comment à partir de sources d'information biomédicales publiques, nous avons développé un système de découverte de connaissances basé sur la littérature.
Jiao, Yunlong. "Pronostic moléculaire basé sur l'ordre des gènes et découverte de biomarqueurs guidé par des réseaux pour le cancer du sein". Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM027/document.
Testo completoBreast cancer is the second most common cancer worldwide and the leading cause of women's death from cancer. Improving cancer prognosis has been one of the problems of primary interest towards better clinical management and treatment decision making for cancer patients. With the rapid advancement of genomic profiling technologies in the past decades, easy availability of a substantial amount of genomic data for medical research has been motivating the currently popular trend of using computational tools, especially machine learning in the era of data science, to discover molecular biomarkers regarding prognosis improvement. This thesis is conceived following two lines of approaches intended to address two major challenges arising in genomic data analysis for breast cancer prognosis from a methodological standpoint of machine learning: rank-based approaches for improved molecular prognosis and network-guided approaches for enhanced biomarker discovery. Furthermore, the methodologies developed and investigated in this thesis, pertaining respectively to learning with rank data and learning on graphs, have a significant contribution to several branches of machine learning, concerning applications across but not limited to cancer biology and social choice theory
Ermolaev, Andrei. "Data-driven methods for analysing nonlinear propagation in optical fibres". Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCD020.
Testo completoThis thesis aims to apply machine learning methods specifically tailored to the analysis and interpretation of optical pulses as they propagate in a single pass through an optical fiber, and under a variety of conditions. In particular, we will focus on data-driven model discovery approaches that involve the use of machine learning to analyze physical system data with the aim of discovering interpretable and generalizable models and developing methods that can substantially accomplish and/or complement conventional theoretical analysis. To this end, both supervised and unsupervised learning methods will be used to deepen understanding of ultrafast nonlinear phenomena in fiber optics systems
Marie, Nicolas. "Recherche exploratoire basée sur des données liées". Thesis, Nice, 2014. http://www.theses.fr/2014NICE4129/document.
Testo completoThe general topic of the thesis is web search. It focused on how to leverage the data semantics for exploratory search. Exploratory search refers to cognitive consuming search tasks that are open-ended, multi-faceted, and iterative like learning or topic investigation. Semantic data and linked data in particular offer new possibilities to solve complex search queries and information needs including exploratory search ones. In this context the linked open data cloud plays an important role by allowing advanced data processing and innovative interactions model elaboration. First, we detail a state-of-the-art review of linked data based exploratory search approaches and systems. Then we propose a linked data based exploratory search solution which is mainly based on an associative retrieval algorithm. We started from a spreading activation algorithm and proposed new diffusion formula optimized for typed graph. Starting from this formalization we proposed additional formalizations of several advanced querying modes in order to solve complex exploratory search needs. We also propose an innovative software architecture based on two paradigmatic design choices. First the results have to be computed at query-time. Second the data are consumed remotely from distant SPARQL endpoints. This allows us to reach a high level of flexibility in terms of querying and data selection. We specified, designed and evaluated the Discovery Hub web application that retrieves the results and present them in an interface optimized for exploration. We evaluate our approach thanks to several human evaluations and we open the discussion about new ways to evaluate exploratory search engines
Vigneron, Vincent. "Programmation par contraintes et découverte de motifs sur données séquentielles". Thesis, Angers, 2017. http://www.theses.fr/2017ANGE0028/document.
Testo completoRecent works have shown the relevance of constraint programming to tackle data mining tasks. This thesis follows this approach and addresses motif discovery in sequential data. We focus in particular, in the case of classified sequences, on the search for motifs that best fit each individual class. We propose a language of constraints over matrix domains to model such problems. The language assumes a preprocessing of the data set (e.g., by pre-computing the locations of each character in each sequence) and views a motif as the choice of a sub-matrix (i.e., characters, sequences, and locations). We introduce different matrix constraints (compatibility of locations with the database, class covering, location-based character ordering common to sequences, etc.) and address two NP-complete problems: the search for class-specific totally ordered motifs (e.g., exclusive subsequences) or partially ordered motifs. We provide two CSP models that rely on global constraints to prove exclusivity. We then present a memetic algorithm that uses this CSP model during initialisation and intensification. This hybrid approach proves competitive compared to the pure CSP approach as shown by experiments carried out on protein sequences. Lastly, we investigate data set preprocessing based on patterns rather than characters, in order to reduce the size of the resulting matrix domain. To this end, we present and compare two alternative methods, one based on lattice search, the other on dynamic programming
Tanasescu, Adrian. "Vers un accès sémantique aux données : approche basée sur RDF". Lyon 1, 2007. http://www.theses.fr/2007LYO10069.
Testo completoThe thesis mainly focuses on information retrival through RDF documents querying. Therefore, we propose an approach able to provide complete and pertinent answers to a user formulated SPARQL query. The approach mainly consists of (1) determining, through a similarity measure, whether two RDF graphs are contradictory, by using the associated ontological knowledge, and (2) building pertinent answers through the combination of statements belonging to non contradicting RDF graphs that partially answer a given query. We also present an RDF storage and querying platform, named SyRQuS, whose query answering plan is entirely based on the former proposed querying approach. SyRQuS is a Web based plateform that mainly provides users with a querying interface where queries can be formulated using SPARQL
Olmos, Marchant Luis Felipe. "Modélisation de performance des caches basée sur l'analyse de données". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX008/document.
Testo completoThe need to distribute massive quantities of multimedia content to multiple users has increased tremendously in the last decade. The current solution to this ever-growing demand are Content Delivery Networks, an application layer architecture that handle nowadays the majority of multimedia traffic. This distribution problem has also motivated the study of new solutions such as the Information Centric Networking paradigm, whose aim is to add content delivery capabilities to the network layer by decoupling data from its location. In both architectures, cache servers play a key role, allowing efficient use of network resources for content delivery. As a consequence, the study of cache performance evaluation techniques has found a new momentum in recent years.In this dissertation, we propose a framework for the performance modeling of a cache ruled by the Least Recently Used (LRU) discipline. Our framework is data-driven since, in addition to the usual mathematical analysis, we address two additional data-related problems: The first is to propose a model that a priori is both simple and representative of the essential features of the measured traffic; the second, is the estimation of the model parameters starting from traffic traces. The contributions of this thesis concerns each of the above tasks.In particular, for our first contribution, we propose a parsimonious traffic model featuring a document catalog evolving in time. We achieve this by allowing each document to be available for a limited (random) period of time. To make a sensible proposal, we apply the "semi-experimental" method to real data. These "semi-experiments" consist in two phases: first, we randomize the traffic trace to break specific dependence structures in the request sequence; secondly, we perform a simulation of an LRU cache with the randomized request sequence as input. For candidate model, we refute an independence hypothesis if the resulting hit probability curve differs significantly from the one obtained from original trace. With the insights obtained, we propose a traffic model based on the so-called Poisson cluster point processes.Our second contribution is a theoretical estimation of the cache hit probability for a generalization of the latter model. For this objective, we use the Palm distribution of the model to set up a probability space whereby a document can be singled out for the analysis. In this setting, we then obtain an integral formula for the average number of misses. Finally, by means of a scaling of system parameters, we obtain for the latter expression an asymptotic expansion for large cache size. This expansion quantifies the error of a widely used heuristic in literature known as the "Che approximation", thus justifying and extending it in the process.Our last contribution concerns the estimation of the model parameters. We tackle this problem for the simpler and widely used Independent Reference Model. By considering its parameter (a popularity distribution) to be a random sample, we implement a Maximum Likelihood method to estimate it. This method allows us to seamlessly handle the censor phenomena occurring in traces. By measuring the cache performance obtained with the resulting model, we show that this method provides a more representative model of data than typical ad-hoc methodologies
Soulet, Arnaud. "Un cadre générique de découverte de motifs sous contraintes fondées sur des primitives". Phd thesis, Université de Caen, 2006. http://tel.archives-ouvertes.fr/tel-00123185.
Testo completol'extraction de connaissances dans les bases de données. Cette thèse
traite de l'extraction de motifs locaux sous contraintes. Nous
apportons un éclairage nouveau avec un cadre combinant des primitives
monotones pour définir des contraintes quelconques. La variété de ces
contraintes exprime avec précision l'archétype des motifs recherchés
par l'utilisateur au sein d'une base de données. Nous proposons alors
deux types d'approche d'extraction automatique et générique malgré les
difficultés algorithmiques inhérentes à cette tâche. Leurs efficacités
reposent principalement sur l'usage de conditions nécessaires pour
approximer les variations de la contrainte. D'une part, des méthodes
de relaxations permettent de ré-utiliser les nombreux algorithmes
usuels du domaines. D'autre part, nous réalisons des méthodes
d'extraction directes dédiées aux motifs ensemblistes pour les données
larges ou corrélées en exploitant des classes d'équivalences. Enfin,
l'utilisation de nos méthodes ont permi la découverte de phénomènes
locaux lors d'applications industrielles et médicales.
Chamekh, Fatma. "L’évolution du web de données basée sur un système multi-agents". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE3083/document.
Testo completoIn this thesis, we investigate the evolution of RDF datasets from documents and LOD. We identify the following issues : the integration of new triples, the proposition of changes by taking into account the data quality and the management of differents versions.To handle with the complexity of the web of data evolution, we propose an agent based argumentation framework. We assume that the agent specifications could facilitate the process of RDF dataset evolution. The agent technology is one of the most useful solution to cope with a complex problem. The agents work as a team and are autonomous in the sense that they have the ability to decide themselves which goals they should adopt and how these goals should be acheived. The Agents use argumentation theory to reach a consensus about the best change alternative. Relatively to this goal, we propose an argumentation model based on the metric related to the intrinsic dimensions.To keep a record of all the occured modifications, we are focused on the ressource version. In the case of a collaborative environment, several conflicts could be generated. To manage those conflicts, we define rules.The exploited domain is general medecine
Libri sul tema "Découverte basée sur les données"
Corak, Miles. Mobilité intergénérationnelle des gains et du revenu des hommes au Canada: Étude basée sur les données longitudinales de l'impôt sur le revenu. Ottawa, Ont: Direction des études analytiques, Statistique Canada, 1998.
Cerca il testo completoDERYAUX-A. Découverte de l'astronomie positive basée sur la loi commune aux mouvements des corps. Hachette Livre - BNF, 2018.
Cerca il testo completoArnold, Béat. Canoës en écorce de bouleau : de la Sibérie à l’Amérique du Nord et les contraintes induites par la matière première. Éditions Alphil, 2021. http://dx.doi.org/10.33055/alphil.16205.
Testo completoCapitoli di libri sul tema "Découverte basée sur les données"
FORTERRE, Patrick. "Les archées et l’arbre de la vie". In Les archées, micro-organismes du troisième domaine du vivant 1, 95–160. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9168.ch3.
Testo completo"Une prise de décision basée sur des données probantes". In Communauté d'apprentissage professionnelle, 169–79. Presses de l'Université du Québec, 2012. http://dx.doi.org/10.1515/9782760535329-014.
Testo completoELIAHU, Adi, Rotem BEN HUR, Ameer HAJ ALI e Shahar KVATINSKY. "mMPU, une architecture polyvalente de calcul dans la mémoire basée sur memristor". In Systèmes multiprocesseurs sur puce 1, 155–69. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9021.ch6.
Testo completoFRIOUX, Clémence, e Anne SIEGEL. "Problèmes d’optimisation combinatoire pour l’étude du métabolisme". In Approches symboliques de la modélisation et de l’analyse des systèmes biologiques, 51–96. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9029.ch2.
Testo completoGARCIA, C., L. BORDIER e H. MAYAUDON. "Conduite à tenir devant un nodule thyroïdien". In Médecine et Armées Vol. 44 No.3, 217–22. Editions des archives contemporaines, 2016. http://dx.doi.org/10.17184/eac.6810.
Testo completoMOLINIER, Matthieu, Jukka MIETTINEN, Dino IENCO, Shi QIU e Zhe ZHU. "Analyse de séries chronologiques d’images satellitaires optiques pour des applications environnementales". In Détection de changements et analyse des séries temporelles d’images 2, 125–74. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9057.ch4.
Testo completoALLAERT, Benjamin, Ioan Marius BILASCO e Chaabane DJERABA. "Analyse des micro et macro-expressions". In Analyse faciale en conditions non contrôlées, 265–302. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9111.ch7.
Testo completoMENZAN KOUAKOU, Rodolphe, René SAHI SALIA e Georges GAULITHY KONAN. "Contribution des medias sociaux à la prevention et à la lutte contre les violences conjugales. S'informer par les réseaux sociaux en temps de crise en Côte d'Ivoire." In Les violences de genre et la pandémie Covid-19, 89–98. Editions des archives contemporaines, 2023. http://dx.doi.org/10.17184/eac.7023.
Testo completoCarrier, Martin. "L'imaginaire et l'intuition dans les sciences". In L'imaginaire et l'intuition dans les sciences, 97–112. Hermann, 2009. http://dx.doi.org/10.3917/herm.buser.2009.01.0097.
Testo completoEpron, Benoît, Marie Merminod e Elise Point. "Communication scientifique et science ouverte". In Communication scientifique et science ouverte, 183–91. De Boeck Supérieur, 2023. http://dx.doi.org/10.3917/dbu.annai.2023.01.0183.
Testo completoAtti di convegni sul tema "Découverte basée sur les données"
Fricain, J. C. "Mucites : une prise en charge basée sur la preuve". In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206601008.
Testo completoLan, R., F. Campana, J. H. Catherine, U. Ordioni e D. Tardivo. "Nouvelles techniques d’aide au diagnostic des lésions pré-cancéreuses et cancéreuses de la cavité orale : revue systématique et résultats préliminaires". In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206602018.
Testo completoRapporti di organizzazioni sul tema "Découverte basée sur les données"
Logan, C. E., H. A. J. Russell, A. K. Burt, A. Burt, R. P. M. Mulligan, D. R. Sharpe e A. F. Bajc. A three-dimensional surficial geology model of southern Ontario. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/pudw24j7tx.
Testo completoCatherine, Hugo. Étude comparative des services nationaux de données de recherche Facteurs de réussite. Ministère de l'enseignement supérieur et de la recherche, gennaio 2021. http://dx.doi.org/10.52949/6.
Testo completoRobert Guertin, Jason, Naomie Chouinard, Chanel Beaudoin Cloutier, Philippe Lachapelle, Normand Lantagne, Maude Laberge e Thomas G. Poder. Estimation du coût de l’hospitalisation index des patients admis dans une unité de soins des grands brûlés d’un centre hospitalier du Québec selon deux approches méthodologiques. CIRANO, maggio 2024. http://dx.doi.org/10.54932/fxem6229.
Testo completo_TCHIBOZO-KEKELE, Chanceline, Rodrigue Castro GBEDOMON, Laurenda TODOME e Fréjus Thoto. Inventaire et caractérisation des espaces verts dans les localités urbaines de la commune d’Abomey-Calavi au Sud-Bénin. ACED, luglio 2024. http://dx.doi.org/10.61647/aa62333.
Testo completoBrinkerhoff, Derick W., Sarah Frazer e Lisa McGregor. S'adapter pour apprendre et apprendre pour s'adapter : conseils pratiques tirés de projets de développement internationaux. RTI Press, gennaio 2018. http://dx.doi.org/10.3768/rtipress.2018.pb.0015.1801.fr.
Testo completoPerron, Benoit, Michel Poitevin, Arthur Adam e Xenia Sozonoff. Autonomie alimentaire et volatilité des prix : une comparaison internationale. CIRANO, settembre 2023. http://dx.doi.org/10.54932/eygc7391.
Testo completoRousseau, Henri-Paul. Gutenberg, L’université et le défi numérique. CIRANO, dicembre 2022. http://dx.doi.org/10.54932/wodt6646.
Testo completo