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Статті в журналах з теми "Enrichissement de document":
Mathieu, Jocelyne. "S’habiller au goût du jour." Les Cahiers des dix, no. 69 (March 14, 2016): 105–34. http://dx.doi.org/10.7202/1035598ar.
Corisco, J. A. Gil, and M. C. Vaz Carreiro. "Étude expérimentale sur l'accumulation et la rétention du 134Cs par une microalgue planctonique, Selenastrum capricornutum Printz." Revue des sciences de l'eau 3, no. 4 (April 12, 2005): 457–68. http://dx.doi.org/10.7202/705085ar.
Mrabet, Yassine, Nacéra Bennacer, and Nathalie Pernelle. "REISA : enrichissement contrôlé de bases de connaissances à partir de documents annotés." Revue d'intelligence artificielle 28, no. 2-3 (June 30, 2014): 297–320. http://dx.doi.org/10.3166/ria.28.397-320.
Hertig, Michael. "L' enrichissement automatique de l’indexation dans le réseau Renouvaud." Informationswissenschaft: Theorie, Methode und Praxis 6, no. 1 (July 9, 2020): 298–311. http://dx.doi.org/10.18755/iw.2020.16.
Brabant, Christine, Tristan Donzé, Murielle Favre Perret, and Philipp Bubenzer. "L’instruction en famille en Suisse romande : portrait des familles et motivations parentales." Swiss Journal of Educational Research 43, no. 3 (December 21, 2021): 430–50. http://dx.doi.org/10.24452/sjer.43.3.7.
Emirkanian, Louisette, and Emmanuel Chieze. "Variations morphologiques, syntaxiques, sémantiques et Repérage d’Information sur le Web." Revue québécoise de linguistique 32, no. 1 (February 20, 2006): 135–54. http://dx.doi.org/10.7202/012247ar.
Innis, Liam Robert John, and Gordon R. Osinski. "Igneous Rock Associations 24. Near-Earth Asteroid Resources: A Review." Geoscience Canada, July 9, 2019, 85–100. http://dx.doi.org/10.12789/geocanj.2019.46.147.
Дисертації з теми "Enrichissement de document":
Decourselle, Joffrey. "Migration et enrichissement sémantique d’entités culturelles." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1183/document.
Many efforts have been done these last two decades to facilitate the management and representation of cultural heritage data. However, many systems used in cultural institutions are still based on flat models and are generally isolated which prevents any reuse or validation of information. This Ph.D. aims at proposing new solutions for enhancing the representation and enrichment of cultural entities using the Semantic Web technologies. This work consists in two major steps to reach this objective. On the one hand, the research is focused on the metadata migration process to transform the schema of existing knowledge catalogs to new semantic models. This study is based on a real-world case study using the concepts from the Functional Requirements for Bibliographic Records (FRBR) which allows to generate graph-based knowledge bases. Yet, the quality of such a migration is the cornerstone for a successful adoption. Thus, several challenges related to the tuning and the evaluation of such a process must be faced. On the other hand, the research aims at taking advantage of these semantic models to facilitate the linkage of information with external and structured sources (e.g., Linked Open Data) and extracting additional information from other sources (e.g., microblogging) to build a new generation of thematic knowledge bases according to the user needs. However, in this case, the aggregation of information from heterogeneous sources requires additional steps to match and merge both correspondences at schema and instance level
Veillet, Sébastien. "Enrichissement nutritionnel de l’huile d’olive : entre tradition et innovation." Thesis, Avignon, 2010. http://www.theses.fr/2010AVIG0237/document.
Olive oil is an ancestral product widely known for its benefic effects on human health. Its processing has changed a lot through centuries, especially these past few years with the increasing automation of the production lines. The first part of this manuscript describes these evolutions while the second part gives details on the influence of each processing step on the nutritional composition of the olive oil. We have studied the influence of the crushing systems, liquid-liquid and solid-liquid separations. The optimization of each of these steps allows the endogenous enrichment of the oil with nutrients extracted from the olive fruit. Then, we have also developed exogenous olive oil enrichment methods by bioactive compounds issued from plants and vegetables. In order to restrain the number of extraction steps and avoid the use of petroleum solvents, the olive oil is used as the extraction solvent so the enrichment is directly performed in the oil. To accelerate extraction kinetics that could be very long we developed ultrasound accelerated extraction techniques. The results obtained in this work are very promising and extensions of olive oil available product ranges are possible
Leny, Marc. "Analyse et enrichissement de flux compressés : application à la vidéo surveillance." Thesis, Evry, Institut national des télécommunications, 2010. http://www.theses.fr/2010TELE0031/document.
The increasing deployment of civil and military videosurveillance networks brings both scientific and technological challenges regarding analysis and content recognition over compressed streams. In this context, the contributions of this thesis focus on: - an autonomous method to segment in the compressed domain mobile objects (pedestrians, vehicles, animals …), - the coverage of the various compression standards commonly used in surveillance (MPEG-2, MPEG-4 Part 2, MPEG-4 Part 10 / H.264 AVC), - an optimised multi-stream processing chain from the objects segmentation up to their tracking and description. The developed demonstrator made it possible to bench the performances of the methodological approaches chosen for a tool dedicated to help investigations. It identifies vehicles from a witness description in databases of tens of hours of video. Moreover, while dealing with corpus covering the different kind of content expected from surveillance (subway stations, crossroads, areas in countryside or border surveillance …), the system provided the following results: - simultaneous real time analysis of up to 14 MPEG-2 streams, 8 MPEG-4 Part 2 streams or 3 AVC streams on a single core (2.66 GHz; 720x576 video, 25 fps), - 100% vehicles detected over the length of traffic surveillance footages, with a image per image detection near 95%, - a segmentation spreading over 80 to 150% of the object area (under or over-segmentation linked with the compressed domain). These researches led to 9 patents linked with new services and applications that were made possible thanks to the suggested approaches. Among these lie tools for Unequal Error Protection, Visual Cryptography, Watermarking or Steganography
Risch, Jean-Charles. "Enrichissement des Modèles de Classification de Textes Représentés par des Concepts." Thesis, Reims, 2017. http://www.theses.fr/2017REIMS012/document.
Most of text-classification methods use the ``bag of words” paradigm to represent texts. However Bloahdom and Hortho have identified four limits to this representation: (1) some words are polysemics, (2) others can be synonyms and yet differentiated in the analysis, (3) some words are strongly semantically linked without being taken into account in the representation as such and (4) certain words lose their meaning if they are extracted from their nominal group. To overcome these problems, some methods no longer represent texts with words but with concepts extracted from a domain ontology (Bag of Concept), integrating the notion of meaning into the model. Models integrating the bag of concepts remain less used because of the unsatisfactory results, thus several methods have been proposed to enrich text features using new concepts extracted from knowledge bases. My work follows these approaches by proposing a model-enrichment step using a domain ontology, I proposed two measures to estimate to belong to the categories of these new concepts. Using the naive Bayes classifier algorithm, I tested and compared my contributions on the Ohsumed corpus using the domain ontology ``Disease Ontology”. The satisfactory results led me to analyse more precisely the role of semantic relations in the enrichment step. These new works have been the subject of a second experiment in which we evaluate the contributions of the hierarchical relations of hypernymy and hyponymy
Oudni, Amal. "Fouille de données par extraction de motifs graduels : contextualisation et enrichissement." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066437/document.
This thesis's works belongs to the framework of knowledge extraction and data mining applied to numerical or fuzzy data in order to extract linguistic summaries in the form of gradual itemsets: the latter express correlation between attribute values of the form « the more the temperature increases, the more the pressure increases ». Our goal is to contextualize and enrich these gradual itemsets by proposing different types of additional information so as to increase their quality and provide a better interpretation. We propose four types of new itemsets: first of all, reinforced gradual itemsets, in the case of fuzzy data, perform a contextualization by integrating additional attributes linguistically introduced by the expression « all the more ». They can be illustrated by the example « the more the temperature decreases, the more the volume of air decreases, all the more its density increases ». Reinforcement is interpreted as increased validity of the gradual itemset. In addition, we study the extension of the concept of reinforcement to association rules, discussing their possible interpretations and showing their limited contribution. We then propose to process the contradictory itemsets that arise for example in the case of simultaneous extraction of « the more the temperature increases, the more the humidity increases » and « the more the temperature increases, the less the humidity decreases ». To manage these contradictions, we define a constrained variant of the gradual itemset support, which, in particular, does not only depend on the considered itemset, but also on its potential contradictors. We also propose two extraction methods: the first one consists in filtering, after all itemsets have been generated, and the second one integrates the filtering process within the generation step. We introduce characterized gradual itemsets, defined by adding a clause linguistically introduced by the expression « especially if » that can be illustrated by a sentence such as « the more the temperature decreases, the more the humidity decreases, especially if the temperature varies in [0, 10] °C »: the additional clause precise value ranges on which the validity of the itemset is increased. We formalize the quality of this enrichment as a trade-off between two constraints imposed to identified interval, namely a high validity and a high size, as well as an extension taking into account the data density. We propose a method to automatically extract characterized gradual based on appropriate mathematical morphology tools and the definition of an appropriate filter and transcription
Ayoub, Oussama. "Enrichissement sémantique non supervisé de longs documents spécialisés pour la recherche d’information." Electronic Thesis or Diss., Paris, HESAM, 2023. http://www.theses.fr/2023HESAC039.
Faced with the incessant growth of textual data that needs processing, Information Retrieval (IR) systems are confronted with the urgent need to adopt effective mechanisms for efficiently selecting document sets that are best suited to specific queries. A predominant difficulty lies in the terminological divergence between the terms used in queries and those present in relevant documents. This semantic disparity, particularly pronounced for terms with similar meanings in large-scale documents from specialized domains, poses a significant challenge for IR systems.In addressing these challenges, many studies have been limited to query enrichment via supervised models, an approach that proves inadequate for industrial application and lacks flexibility. This thesis proposes LoGE an innovative alternative with an unsupervised search system based on advanced Deep Learning methods. This system uses a masked language model to extrapolate associated terms, thereby enriching the textual representation of documents. The Deep Learning models used, pre-trained on extensive textual corpora, incorporate general or domain-specific knowledge, thus optimizing the document representation.The analysis of the generated extensions revealed an imbalance between the signal (relevant terms added) and the noise (irrelevant terms). To address this issue, we developed SummVD, an innovative extractive automatic summarization approach, using singular value decomposition to synthesize the information contained in documents and identify the most pertinent phrases. This method has been adapted to filter the terms of the extensions based on the local context of each document, thereby maintaining the relevance of the information while minimizing noise
Durighello, Emie. "Nouvelles approches combinant protéomique, immuno-enrichissement et bioinformatique pour la détection de microorganismes." Thesis, Montpellier 1, 2014. http://www.theses.fr/2014MON13514/document.
The rapid identification of pathogenic microorganisms in environmental samples is a major issue in the biodefense field. MALDI-TOF mass spectrometry can offer a fast, straightforward and inexpensive answer. In the framework of the Franco-German ANR project GEFREASE, the purpose of the thesis was to develop methodologies allowing identification of pathogenic microorganisms and particularly to set up targeted approaches using antibodies for sample preparation beforehand mass spectrometry. First of all, the proteome study of Francisella tularensis subsp. holarctica LVS, responsible for tularemia, allowed us to identify the most abundant proteins and peptides, and for which the most intense signals are observed when using mass spectrometry. The proteogenomic study of twelve of these proteins enable us to choose three biomarkers for which the masses monitored by MALDI-TOF mass spectrometry (top down approach) allow deciphering the Francisella species and subspecies. The interest of this work is being able to conclude on a strain virulence based on the knowledge of the subspecies it belongs. The finalized test is easy and fast. Secondly, the development of a magnetic immunocapture of Francisella tularensis subsp. holarctica LVS allowed us to show that it is possible to concentrate bacteria using magnetic beads coupled to antibodies raised against the entire bacterium. This approach has been experimented in the case of bacterial mixtures where the model bacterium was largely in minority and for samples containing various food matrices such as mineral water or milk. The methodology has been validated on a class 3 agent, Francisella tularensis subsp. tularensis
Hadj, salah Marwa. "Désambiguïsation lexicale de l'arabe pour et par la traduction automatique." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM089/document.
This thesis concerns a study of Word Sense Disambiguation (WSD), which is a central task in natural language processing and that can improve applications such as machine translation or information extraction. Researches in word sense disambiguation predominantly concern the English language, because the majority of other languages lacks a standard lexical reference for the annotation of corpora, and also lacks sense annotated corpora for the evaluation, and more importantly for the construction of word sense disambiguation systems. In English, the lexical database wordnet is a long-standing de-facto standard used in most sense annotated corpora and in most WSD evaluation campaigns.Our contribution to this thesis focuses on several areas:first of all, we present a method for the automatic creation of sense annotated corpora for any language, by taking advantage of the large amount of wordnet sense annotated English corpora, and by using a machine translation system. This method is applied on Arabic and is evaluated, to our knowledge, on the only Arabic manually sense annotated corpus with wordnet: the Arabic OntoNotes 5.0, which we have semi-automatically enriched.Its evaluation is performed thanks to an implementation of two supervised word sense disambiguation systems that are trained on the corpora produced using our method. We hence propose a solid baseline for the evaluation of future Arabic word sense disambiguation systems, in addition to sense annotated Arabic corpora that we provide as a freely available resource.Secondly, we propose an in vivo evaluation of our Arabic word sense disambiguation system by measuring its contribution to the performance of the machine translation task
Alec, Céline. "Enrichissement et peuplement d’ontologie à partir de textes et de données du LOD : Application à l’annotation automatique de documents." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS228/document.
This thesis deals with an approach, guided by an ontology, designed to annotate documents from a corpus where each document describes an entity of the same type. In our context, all documents have to be annotated with concepts that are usually too specific to be explicitly mentioned in the texts. In addition, the annotation concepts are represented initially only by their name, without any semantic information connected to them. Finally, the characteristics of the entities described in the documents are incomplete. To accomplish this particular process of annotation of documents, we propose an approach called SAUPODOC (Semantic Annotation of Population Using Ontology and Definitions of Concepts) which combines several tasks to (1) populate and (2) enrich a domain ontology. The population step (1) adds to the ontology information from the documents in the corpus but also from the Web of Data (Linked Open Data or LOD). The LOD represents today a promising source for many applications of the Semantic Web, provided that appropriate techniques of data acquisition are developed. In the settings of SAUPODOC, the ontology population has to take into account the diversity of the data in the LOD: multiple, equivalent, multi-valued or absent properties. The correspondences to be established, between the vocabulary of the ontology to be populated and that of the LOD, are complex, thus we propose a model to facilitate their specification. Then, we show how this model is used to automatically generate SPARQL queries and facilitate the interrogation of the LOD and the population of the ontology. The latter, once populated, is then enriched (2) with the annotation concepts and definitions that are learned through examples of annotated documents. Reasoning on these definitions finally provides the desired annotations. Experiments have been conducted in two areas of application, and the results, compared with the annotations obtained with classifiers, show the interest of the approach
Lunion, Steeve. "Enrichissement environnemental, performances cognitives et neurogenèse hippocampique adulte chez un modèle murin du syndrome de Coffin-Lowry." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA11T034/document.
The Coffin-Lowry Syndrome is a rare syndromic form of X-linked intellectual disability. This syndrome is caused by mutations of the Rsk2 gene that encodes a protein kinase, RSK2, in the MAPK/ERK signaling pathway. Characterization of the behavioural phenotype of Rsk2-KO mice mainly showed that they display delayed acquisition and long-term deficits in a spatial reference memory task, suggesting an alteration in hippocampal function. Here, we show that Rsk2-KO mice are also deficient in a learning and memory task that involves dentate gyrus-dependent pattern separation function. Several studies showed the formation of new neurons in the adult dentate gyrus by neurogenesis is a form of plasticity that plays a significant role in hippocampal-dependent learning and memory, in particular for spatial learning and memory and pattern separation. As these functions are altered in Rsk2-KO mice, we studied hippocampal adult neurogenesis in these mice. No difference in proliferation, survival and maturation of newborn neurons was found in the dentate gyrus of the mutant mice in basal conditions, nor after a pattern separation task. However, we found a deficit in the survival of newborn cells in Rsk2-KO mice submitted to spatial learning and memory in the Morris water maze task. According to several studies, environmental enrichment in rodents has beneficial effects on cognitive performance and is associated with an enhancement of adult hippocampal neurogenesis. Thus, we assessed the potential effect of environmental enrichment on spatial learning and memory performance and adult hippocampal neurogenesis in Rsk2-KO mice. Our results show that an environmental enrichment protocol of 3h per day during 24 days can rescue or ameliorate spatial learning and memory performance and pattern separation function in Rsk2-KO mice and increase adult hippocampal neurogenesis
Частини книг з теми "Enrichissement de document":
Calafat, Guillaume. "Un réseau corse entre l’Afrique du Nord et l’Europe. Commerce maritime, institutions et enrichissement au tournant des XVIe et XVIIe siècles." In Atti delle «Settimane di Studi» e altri Convegni, 407–27. Florence: Firenze University Press, 2019. http://dx.doi.org/10.36253/978-88-6453-857-0.21.