174 research outputs found

    REPRESENTATION OF MULTI-STRUCTURED Documents with OWL. Applications to Philology.

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    Multi-Structured documents (denoted MSDs) are documents whose structure is composed of a set of concurrent hierarchical structures. Many distinct structures may be defined simultaneously for the same original document (logical structure, physical structure). Each hierarchy analyses the text within the document by a different point of view, which depends on different use of that text. These structures may overlap over the document contents. XML has become the most used language for encoding electronic documents. XML documents are tree based; and since there are overlapping between different structures, the hierarchy of a tree allows encoding a document depending on one structure. Some applications need to consider more than one hierarchy over the same text, which corresponds to different analysis for different uses of that document. If several different structures should be represented, the solution that manages several different versions for same information is not only ineffective and expensive in time and resources, but does not allow, for example, a search for information relating to two different structures for the same document. One of the distinguished solutions that addressed this problematic, is a generic model called Multi- Structure Document Model (MSDM), which is independent of any formalism of encoding. However MSDM is encoded by formalism called MultiX that uses XML syntax. MultiX could serialize the MSDM model into XML syntax and expresses the different structures and their correspondences in a single xml file. However it still has some complexity due to its respect to XML tree model. In this paper, we will present how to encode MSDs depending on MSDM but by means of non-tree based data model (graph based). We will use Ontology Web Language (OWL) to represent the metadata that corresponds to XML schema in MultiX. To illustrate our work, we choose, as running example, an application of philology (science dedicated to the study of text history).The example is a fragment of an old manuscript written in Occitan language. Keywords: Multi-Structured documents, XML, MSDM, MultiX, OWL, encoding manuscripts

    Recherche d'information contextuelle et web

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    International audienceL'objectif de ce chapitre est d'apporter un éclairage sur ces problématiques, sur leurs origines, sur les verrous posés par la RI classique dans un tel cadre, ainsi que sur les solutions apportées dans la communauté

    DEvIR: Data Collection and Analysis for the Recommendation of Events and Itineraries

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    Distributed events such as multi-day festivals and conventions attract thousands of attendees. Their programs are usually very dense, which makes it difficult for users to select activities to perform. Recent works have proposed event and itinerary recommendation algorithms to solve this problem. Although several datasets have been made available for the evaluation of event recommendation algorithms, they do not suit well for the case of distributed events or itinerary recommendation. Based on the study of available online resources, we define dataset attributes required to perform event and itinerary recommendations in the context of distributed events, and discuss the compliance of existing datasets to these requirements. Revealing the lack of publicly available datasets with desired features, we describe a data collection process to acquire the publicly available data from a major comic book convention website. We present the characteristics of the collected data and discuss its usability for evaluating recommendation algorithms

    ANASTASIA : recommandation de séquences d'activités spatio-temporelles

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    National audienceAs amount of activities available for users and their variety have grown, personalised recommendation of activities sequences has become an important challenge. However, most of recommender systems do not consider temporal constraints of activities, making the recommendation hard for user to follow. In this article, we describe a novel approach for recommendation of competing activities limited in time. It makes use of historical records of users' activities in order to mine users' behavioral patterns, and combines different contextual elements (popularity, demographic and spatio-temporal information). We present an evaluation framework and a dataset that will allow us to evaluate our approach.Avec l’augmentation du nombre et de la variĂ©tĂ© des activitĂ©s accessibles par les utilisateurs, la recommandation personnalisĂ©e de sĂ©quences d’activitĂ©s devient un enjeu important. Or, la plupart des systĂšmes de recommandation ne tiennent pas compte des contraintes temporelles liĂ©es aux activitĂ©s, ce qui rend la recommandation difficile Ă  suivre par un utilisateur. Dans cet article, nous dĂ©crivons une nouvelle approche pour la recommandation de sĂ©quences d’activitĂ©s limitĂ©es dans le temps et concurrentes. Elle s’appuie sur l’historique des activitĂ©s des utilisateurs pour extraire des motifs comportementaux et intĂšgre diffĂ©rents Ă©lĂ©ments contextuels (popularitĂ©, informations dĂ©mographiques et spatio-temporelles). Nous prĂ©sentons un protocole d’évaluation et un jeu de donnĂ©es qui permettra l’évaluation de notre approche

    Recommandation de sĂ©quences d’activitĂ©s en contexte mobile et dynamique

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    National audienceLa recommandation de sĂ©quences d'activitĂ©s spatio-temporelles (Points d'IntĂ©rĂȘts, POIs) est de plus en plus utile et demandĂ©e avec la pĂ©nĂ©tration des systĂšmes de localisation et des rĂ©seaux gĂ©o-sociaux dans la vie quotidienne. Nous proposons une approche personnalisĂ©e de recommandation de sĂ©quences d'activitĂ©s en contexte mobile et dynamique

    Recommandation de sĂ©quences d’activitĂ©s en contexte mobile et dynamique

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    National audienceLa recommandation de sĂ©quences d'activitĂ©s spatio-temporelles (Points d'IntĂ©rĂȘts, POIs) est de plus en plus utile et demandĂ©e avec la pĂ©nĂ©tration des systĂšmes de localisation et des rĂ©seaux gĂ©o-sociaux dans la vie quotidienne. Nous proposons une approche personnalisĂ©e de recommandation de sĂ©quences d'activitĂ©s en contexte mobile et dynamique

    Numérisation des manuscrits médiévaux : le projet européen BAMBI

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    Colloque: Vers une nouvelle érudition : numérisation et recherche en histoire du livre, Rencontres Jacques Cartier, Lyon, décembre 1999

    Un nouveau passage Ă  l'Ă©chelle en recherche d'information

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    National audienceLa quantitĂ© d'information numĂ©rique produite et consultĂ©e a considĂ©rablement augmentĂ© et sa diversitĂ© s'est accrue. Or, le facteur d'Ă©chelle joue un rĂŽle important dans la quantitĂ© et la qualitĂ© des traitements que l'on peut appliquer aux informations, aussi bien de maniĂšre intrinsĂšque que perçue par l'utilisateur. Cet article propose un panorama des problĂšmes qui dĂ©coulent de ces Ă©volutions ainsi que quelques pistes de recherche afin de rĂ©pondre Ă  ce qui semble bien ĂȘtre un nouveau dĂ©fi de « passage Ă  l'Ă©chell
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