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Artykuły w czasopismach na temat "Données de préférence"
Marleau, Jacques D., Jean-François Saucier, Jean-François Allaire i Martine Maheu. "Variables associées aux préférences relatives au sexe des enfants chez des femmes enceintes primipares". Cahiers québécois de démographie 33, nr 2 (18.08.2005): 339–50. http://dx.doi.org/10.7202/011209ar.
Pełny tekst źródłaDeschamps, Gilles. "Quelques données sur les propensions à l’endogamie et à l’exogamie de la nuptialité ethnique au Québec". Articles 7, nr 2 (28.10.2008): 25–47. http://dx.doi.org/10.7202/600764ar.
Pełny tekst źródłaMarleau, Jacques D., i Jean-François Saucier. "Préférence des femmes canadiennes et québécoises non enceintes quant au sexe du premier enfant". Cahiers québécois de démographie 22, nr 2 (25.03.2004): 363–72. http://dx.doi.org/10.7202/010152ar.
Pełny tekst źródłaHorner, Ivan, Jérôme Le Coz, Benjamin Renard i Flora Branger. "Impact de la sensibilité des contrôles hydrauliques sur les incertitudes hydrométriques". La Houille Blanche, nr 1 (luty 2018): 27–35. http://dx.doi.org/10.1051/lhb/2018004.
Pełny tekst źródłaKünzli, Alexander. "Experts versus novices : l’utilisation de sources d’information pendant le processus de traduction". Meta 46, nr 3 (2.10.2002): 507–23. http://dx.doi.org/10.7202/003363ar.
Pełny tekst źródłaRobitaille, Christian. "Time Preference and Religious Affiliation in Canada: A Quantitative Analysis". Canadian Jewish Studies / Études juives canadiennes 30 (30.11.2020): 136–61. http://dx.doi.org/10.25071/1916-0925.40187.
Pełny tekst źródłaArcher, Anya, Isha Berry, Uttam Bajwa, Robyn Kalda i Erica Di Ruggiero. "Préférences en matière de modalités pour assurer la formation continue du personnel en santé publique : revue de la portée". Promotion de la santé et prévention des maladies chroniques au Canada 40, nr 4 (kwiecień 2020): 128–38. http://dx.doi.org/10.24095/hpcdp.40.4.03f.
Pełny tekst źródłaMourou, Kévin, Rachel Lavoué i Armelle Diquelou. "Le collapsus trachéal chez le chien". Le Nouveau Praticien Vétérinaire canine & féline 19, nr 81 (czerwiec 2022): 33–40. http://dx.doi.org/10.1051/npvcafe/2022056.
Pełny tekst źródłaNick, Drydakis. "Greek unions' preferences: measuring trends in the field. An exploratory note on the period 2008–2009". Transfer: European Review of Labour and Research 17, nr 4 (listopad 2011): 563–76. http://dx.doi.org/10.1177/1024258911419785.
Pełny tekst źródłaJutras, Chloé, Alain P. Gauthier, Patrick E. Timony, Daniel Côté i Georges Kpazaï. "Expérience de francophones en Ontario chez leur médecin de famille : concordance et discordance linguistique". Diversity of Research in Health Journal 3 (31.10.2019): 12–33. http://dx.doi.org/10.28984/drhj.v3i0.310.
Pełny tekst źródłaRozprawy doktorskie na temat "Données de préférence"
Alami, Karim. "Optimisation des requêtes de préférence skyline dans des contextes dynamiques". Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0135.
Pełny tekst źródłaPreference queries are interesting tools to compute small representatives of datasets or to rank tuples based on the users’ preferences. In this thesis, we mainly focus on the optimization of Skyline queries, a special class of preference queries, in dynamic contexts. In a first part, we address the incremental maintenance of the multidimensional indexing structure NSC which has been shown efficient for answering skyline queries in a static context. More precisely, we address (i) the case of dynamic data, i.e. tuples are inserted or deleted at any time, and (ii) the case of streaming data, i.e. tuples are appended only, and discarded after a specific interval of time. In case of dynamic data, we redesign the structure and propose procedures to handle efficiently both insertions and deletions. In case of streaming data, we propose MSSD a data pipeline which operates in batch mode, and maintains NSCt a variation of NSC. In a second part, we address the case of dynamic orders, i.e, some or all attributes of the dataset are nominal and each user expresses his/her own partial order on these attributes’ domain. We propose highly scalable parallel algorithms that decompose an issued query into a set of sub-queries and process each sub-query independently. In a further step for optimization, we propose the partial materialization of sub-queries and introduce the problem of cost-driven sub-queries selection
Ben, Hassine Soumaya. "Évaluation et requêtage de données multisources : une approche guidée par la préférence et la qualité des données : application aux campagnes marketing B2B dans les bases de données de prospection". Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO22012/document.
Pełny tekst źródłaIn Business-to-Business (B-to-B) marketing campaigns, manufacturing “the highest volume of sales at the lowest cost” and achieving the best return on investment (ROI) score is a significant challenge. ROI performance depends on a set of subjective and objective factors such as dialogue strategy, invested budget, marketing technology and organisation, and above all data and, particularly, data quality. However, data issues in marketing databases are overwhelming, leading to insufficient target knowledge that handicaps B-to-B salespersons when interacting with prospects. B-to-B prospection data is indeed mainly structured through a set of independent, heterogeneous, separate and sometimes overlapping files that form a messy multisource prospect selection environment. Data quality thus appears as a crucial issue when dealing with prospection databases. Moreover, beyond data quality, the ROI metric mainly depends on campaigns costs. Given the vagueness of (direct and indirect) cost definition, we limit our focus to price considerations.Price and quality thus define the fundamental constraints data marketers consider when designing a marketing campaign file, as they typically look for the "best-qualified selection at the lowest price". However, this goal is not always reachable and compromises often have to be defined. Compromise must first be modelled and formalized, and then deployed for multisource selection issues. In this thesis, we propose a preference-driven selection approach for multisource environments that aims at: 1) modelling and quantifying decision makers’ preferences, and 2) defining and optimizing a selection routine based on these preferences. Concretely, we first deal with the data marketer’s quality preference modelling by appraising multisource data using robust evaluation criteria (quality dimensions) that are rigorously summarized into a global quality score. Based on this global quality score and data price, we exploit in a second step a preference-based selection algorithm to return "the best qualified records bearing the lowest possible price". An optimisation algorithm, BrokerACO, is finally run to generate the best selection result
Jerbi, Houssem. "Personnalisation d'analyses décisionnelles sur des données multidimensionnelles". Phd thesis, Toulouse 1, 2012. http://tel.archives-ouvertes.fr/tel-00695371.
Pełny tekst źródłaChouiref, Zahira. "Contribution à l'étude de l'optimisation de requêtes de services Web : une approche centrée utilisateur". Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2017. http://www.theses.fr/2017ESMA0016.
Pełny tekst źródłaThe internet has completely transformed the way how we communicate (access toinformation). Its evolution was marked by strong growth of published services which has been accompanied by a large explosion in the number of users and a diversity oftheir profiles and their contexts.The work presented in this thesis deal with the adaptive optimization of Web services queries to user needs. This problem is to select a service or a combination of relevant services from a collection of candidates able to perform a required task. These candidate services must meet the requirements requested by the user, the selection makes his/herchoice from non-functional criteria. In our approach, non-functional criteria considered are all associated with preferences of service requester. A significant interest is therefore carried to the user who is at the core of the selection system. This selection is generally considered a complex task because of the diversity of profile and context of the service,which it is performed.Our study focuses mainly on the analysis of different service selection approaches.We especially highlight their contribution to solving the problems inherent in selecting the best services in order to meet the non-functional parameters of the request. Second, our interest has focused on modeling the specification of supply and demand for services, their context and profile as well as the two families preferences : explicit and implicit. Finally, we propose a novel optimization approach that integrates a query reformulation strategy by introducing implicit preferences based on the fuzzy inference process. The idea is to combine the two families of preferences required by the user with consideration of profiles and contexts of services and the user simultaneously. The application of fuzzy set theory in the optimization of preference query of customers by integrating reasoning module on information related to the user leads of great interest in improving the quality of results. We present at the end a set of experiments to demonstrate the validity and relevance of the proposed approach
Marie, Damien. "Anatomie du gyrus de Heschl et spécialisation hémisphérique : étude d'une base de données de 430 sujets témoins volontaire sains". Thesis, Bordeaux 2, 2013. http://www.theses.fr/2013BOR22072/document.
Pełny tekst źródłaThis thesis concerns the macroscopical anatomy of Heschl’s gyri (HG) in relation with Manual Preference (MP) and the Hemispheric Specialization (HS) for language studied in a multimodal database dedicated to the investigation of HS and balanced for sex and MP (BIL&GIN). HG, located on the surface of the temporal lobe, hosts the primary auditory cortex. Previous studies have shown that HG volume is leftward asymmetrical and that the left HG (LHG) covaries with phonological performance and with the amount of cortex dedicated to the processing of the temporal aspects of sounds, suggesting a relationship between LHG and HSL. However HG anatomy is highly variable and little known. In this thesis we have: 1- Described HG inter-hemispheric gyrification pattern on the anatomical MRI images of 430 healthy participants. 2- Studied the variation of the first or anterior HG (aHG) surface area and its asymmetry and shown its reduction in the presence of duplication and that its leftward asymmetry was present only in the case of a single LHG. Left-handers exhibited a lower incidence of right duplication and a loss of aHG leftward asymmetry. 3- Tested whether the variance of HG anatomy explained the interindividual variability of asymmetries measured with fMRI during the listening of a list of words in 281 participants, and whether differences in HG anatomy with MP were related to decreased HS for language in left-handers. HG inter-hemispheric gyrification pattern explained 11% of the variance of HG functional asymmetry, the patterns including a unique LHG being those with the strongest leftward asymmetry. There was no incidence of MP on HG functional lateralization
Elmi, Saïda. "An Advanced Skyline Approach for Imperfect Data Exploitation and Analysis". Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2017. http://www.theses.fr/2017ESMA0011/document.
Pełny tekst źródłaThe main purpose of this thesis is to study an advanced database tool named the skyline operator in the context of imperfect data modeled by the evidence theory. In this thesis, we first address, on the one hand, the fundamental question of how to extend the dominance relationship to evidential data, and on the other hand, it provides some optimization techniques for improving the efficiency of the evidential skyline. We then introduce efficient approach for querying and processing the evidential skyline over multiple and distributed servers. ln addition, we propose efficient methods to maintain the skyline results in the evidential database context wben a set of objects is inserted or deleted. The idea is to incrementally compute the new skyline, without reconducting an initial operation from the scratch. In the second step, we introduce the top-k skyline query over imperfect data and we develop efficient algorithms its computation. Further more, since the evidential skyline size is often too large to be analyzed, we define the set SKY² to refine the evidential skyline and retrieve the best evidential skyline objects (or the stars). In addition, we develop suitable algorithms based on scalable techniques to efficiently compute the evidential SKY². Extensive experiments were conducted to show the efficiency and the effectiveness of our approaches
Goibert, Morgane. "Statistical Understanding of Adversarial Robustness". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT052.
Pełny tekst źródłaThis thesis focuses on the question of robustness in machine learning, specifically examining two types of attacks: poisoning attacks at training time and evasion attacks at inference time.The study of poisoning attacks dates back to the sixties and has been unified under the theory of robust statistics. However, prior research was primarily focused on classical data types, mainly real-numbered data, limiting the applicability of poisoning attack studies. In this thesis, robust statistics are extended to ranking data, which lack a vector space structure and have a combinatorial nature. The work presented in this thesis initiates the study of robustness in the context of ranking data and provides a framework for future extensions. Contributions include a practical algorithm to measure the robustness of statistics for the task of consensus ranking, and two robust statistics to solve this task.In contrast, since 2013, evasion attacks gained significant attention in the deep learning field, particularly for image classification. Despite the proliferation of research works on adversarial examples, the theoretical analysis of the problem remains challenging and it lacks unification. To address this matter, the thesis makes contributions to understanding and mitigating evasion attacks. These contributions involve the unification of adversarial examples' characteristics through the study of under-optimized edges and information flow within neural networks, and the establishment of theoretical bounds characterizing the success rate of modern low-dimensional attacks for a wide range of models
Labernia, Fabien. "Algorithmes efficaces pour l’apprentissage de réseaux de préférences conditionnelles à partir de données bruitées". Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED018/document.
Pełny tekst źródłaThe rapid growth of personal web data has motivated the emergence of learning algorithms well suited to capture users’ preferences. Among preference representation formalisms, conditional preference networks (CP-nets) have proven to be effective due to their compact and explainable structure. However, their learning is difficult due to their combinatorial nature.In this thesis, we tackle the problem of learning CP-nets from corrupted large datasets. Three new algorithms are introduced and studied on both synthetic and real datasets.The first algorithm is based on query learning and considers the contradictions between multiple users’ preferences by searching in a principled way the variables that affect the preferences. The second algorithm relies on information-theoretic measures defined over the induced preference rules, which allow us to deal with corrupted data. An online version of this algorithm is also provided, by exploiting the McDiarmid's bound to define an asymptotically optimal decision criterion for selecting the best conditioned variable and hence allowing to deal with possibly infinite data streams
Sibony, Eric. "Analyse mustirésolution de données de classements". Thesis, Paris, ENST, 2016. http://www.theses.fr/2016ENST0036/document.
Pełny tekst źródłaThis thesis introduces a multiresolution analysis framework for ranking data. Initiated in the 18th century in the context of elections, the analysis of ranking data has attracted a major interest in many fields of the scientific literature : psychometry, statistics, economics, operations research, machine learning or computational social choice among others. It has been even more revitalized by modern applications such as recommender systems, where the goal is to infer users preferences in order to make them the best personalized suggestions. In these settings, users express their preferences only on small and varying subsets of a large catalog of items. The analysis of such incomplete rankings poses however both a great statistical and computational challenge, leading industrial actors to use methods that only exploit a fraction of available information. This thesis introduces a new representation for the data, which by construction overcomes the two aforementioned challenges. Though it relies on results from combinatorics and algebraic topology, it shares several analogies with multiresolution analysis, offering a natural and efficient framework for the analysis of incomplete rankings. As it does not involve any assumption on the data, it already leads to overperforming estimators in small-scale settings and can be combined with many regularization procedures for large-scale settings. For all those reasons, we believe that this multiresolution representation paves the way for a wide range of future developments and applications
Jolivet, Laurence. "Modélisation des déplacements d'animaux dans un espace géographique : analyse et simulation". Thesis, Paris 1, 2014. http://www.theses.fr/2014PA010524/document.
Pełny tekst źródłaFinding compromises between human development and wildlife protection is one concern of society.Taking into account animal movements in planning projects requires some knowledge on species behaviours and on what determines their localizations and their habitat places. Our goal is to be able to represent animal movements on an accurate geographical space in order to simulate and to evaluate the consequences of planning decisions. We first analysed how the features of the landscape influence movements from collected localizations on animals, for example GPS tracks (studies of ELIZ, ANSES, ONCFS, INRA) and from data describing spacesuch as BD TOPO®. The studied cases are about several types of environment and three species: red fox,roe deer and red deer. We found some results that confirm the role played by the spatial features,depending on the studied cases. For instance in a periurban environment, foxes seem to be more inwooded patches and in places with few human activities during some parts of the day (squares, areas with industrial or commercial activities, sides of railways). In a forested environment, deers are more likely to be influenced by slope and forest stands. Thanks to knowledge from data analyses and to literature, we defined a simulation model for animalmovements. We implemented it in the GeOxygene platform. The trajectories are built with an agent approach by taking into account the spatial behaviour of the species and the influence of elements that favour or hinder movements. We proposed a critical view of the modelling choices and some improvements from the comparison with observations and experts advices. Then, scenarios within frastructures are defined so that to identify their impact and their efficiency
Książki na temat "Données de préférence"
Commerce-industrie : Le nouveau partenariat. Vuibert, 1998.
Znajdź pełny tekst źródłaCzęści książek na temat "Données de préférence"
De Marcellis-Warin, Nathalie, i Ingrid Peignier. "Point de vue: L’organisation du travail durant la pandémie de Covid-19 et les préférences pour le futur. Étude de cas avec les données du Baromètre CIRANO 2021". W Le Québec économique 10: Compétences et transformation du marché du travail. Centre interuniversitaire de recherche en analyse des organisations, 2022. http://dx.doi.org/10.54932/wxmo6603.
Pełny tekst źródła"CHAP. XXIII. En comparant entre elles deux hypothèses opposées, afin de donner la préférence à celle qui offre le moins d'invraisemblances, il ne s'agit pas de constater de quel côté est le plus grand nombre de doutes, mais plutôt de peser la gravité des invraisemblances qui résulteraient de chacune des deux hypothèses. 11 faut aussi se dépouiller de toute opinion préconçue et n'avoir aucun préjugé en faveur de l'une des deux hypothèses". W Dalalat al Hairin, redaktor Salomon Munk, 180–83. Piscataway, NJ, USA: Gorgias Press, 2010. http://dx.doi.org/10.31826/9781463225346-026.
Pełny tekst źródłaRaporty organizacyjne na temat "Données de préférence"
Doyon, Maurice, Stéphane Bergeron i Jacinthe Cloutier. Analyse des préférences des résidents-propriétaires de la ville de Québec pour l’aménagement de bassins de rétention à proximité. CIRANO, czerwiec 2022. http://dx.doi.org/10.54932/qwaq7409.
Pełny tekst źródłaBouchard St-Amant, Pier-André, Nicolas Bolduc, Judelin Michel Ducatel i Guillaume Dumais. Application de la théorie de la taxation optimale à l’impôt québécois. CIRANO, sierpień 2022. http://dx.doi.org/10.54932/sdvj5720.
Pełny tekst źródłaGruber, Verena, Ingrid Peignier i Charlotte Dubuc. Pratiques et tactiques de vente des concessionnaires automobiles au Québec. CIRANO, październik 2023. http://dx.doi.org/10.54932/bryk4403.
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