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Dissertations / Theses on the topic 'Information retrieval in multimedia documents'

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Published: 4 June 2021
Last updated: 1 February 2022

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1

Jeong, Ki Tai. "A Common Representation Format for Multimedia Documents." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3336/.

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Multimedia documents are composed of multiple file format combinations, such as image and text, image and sound, or image, text and sound. The type of multimedia document determines the form of analysis for knowledge architecture design and retrieval methods. Over the last few decades, theories of text analysis have been proposed and applied effectively. In recent years, theories of image and sound analysis have been proposed to work with text retrieval systems and progressed quickly due in part to rapid progress in computer processing speed. Retrieval of multimedia documents formerly was divi
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2

Ebadat, Ali-Reza. "Toward Robust Information Extraction Models for Multimedia Documents." Phd thesis, INSA de Rennes, 2012. http://tel.archives-ouvertes.fr/tel-00760383.

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Au cours de la dernière décennie, d'énormes quantités de documents multimédias ont été générées. Il est donc important de trouver un moyen de gérer ces données, notamment d'un point de vue sémantique, ce qui nécessite une connaissance fine de leur contenu. Il existe deux familles d'approches pour ce faire, soit par l'extraction d'informations à partir du document (par ex., audio, image), soit en utilisant des données textuelles extraites du document ou de sources externes (par ex., Web). Notre travail se place dans cette seconde famille d'approches ; les informations extraites des textes peuve
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3

Branko, Milosavljević. "Proširivi sistem za pronalaženje multimedijalnih dokumenata." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2003. http://dx.doi.org/10.2298/NS2003MILOSAVLJEVICBRANKO.

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Oblast pronalaženja informacija kao jedan od osnovnih problema razmatra pronalaženje dokumenata u kolekciji koji su relevantni sa stanovišta korisnika. Ova disertacija se bavi problemima pronalaženja strukturiranih multimedijalnih dokumenata. Strukturirani multimedijalni dokumenti mogu, kao svoje elemente, sadržati objekte različitih tipova medija(tekst, slika, zvuk, ili video). Tema disertacije je formalna specifikacija modela sistema koji omogućava pronalaženje multimedijalnih dokumenata obezbeđujući pri tom proširivost sistema podr&scaro
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Fourel, Franck. "Modélisation, indexation et recherche de documents structurés." Phd thesis, Université Joseph Fourier (Grenoble), 1998. http://tel.archives-ouvertes.fr/tel-00004888.

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Les systèmes actuels de recherche de documents électroniques, que ce soit des systèmes de gestion de bases de données ou des systèmes de recherche d'informations, n'exploitent pas suffisament la richesse des documents. Les uns n'analysent pas le contenu des documents et se laissent diriger par la structure du document alors que les autres délaissent l'aspect structurel en s'appuyant sur des méthodes trop peu adaptées aux nouvelles caractéristiques de ces documents. Le but de notre travail, situé à l'intersection de ces deux types de systèmes, est de réconcilier les différentes modalités d'accè
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Poignant, Johann. "Identification non-supervisée de personnes dans les flux télévisés." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00958774.

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Ce travail de thèse a pour objectif de proposer plusieurs méthodes d'identi- fication non-supervisées des personnes présentes dans les flux télévisés à l'aide des noms écrits à l'écran. Comme l'utilisation de modèles biométriques pour reconnaître les personnes présentes dans de larges collections de vidéos est une solution peu viable sans connaissance a priori des personnes à identifier, plusieurs méthodes de l'état de l'art proposent d'employer d'autres sources d'informations pour obtenir le nom des personnes présentes. Ces méthodes utilisent principalement les noms prononcés comme source de
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6

Vilsmaier, Christian. "Contextualized access to distributed and heterogeneous multimedia data sources." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0094/document.

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Rendre les données multimédias disponibles en ligne devient moins cher et plus pratique sur une base quotidienne, par exemple par les utilisateurs eux-mêmes. Des phénomènes du Web comme Facebook, Twitter et Flickr bénéficient de cette évolution. Ces phénomènes et leur acceptation accrue conduisent à une multiplication du nombre d’images disponibles en ligne. La taille cumulée de ces images souvent publiques et donc consultables, est de l’ordre de plusieurs zettaoctets. L’exécution d’une requête de similarité sur de tels volumes est un défi que la communauté scientifique commence à cibler. Une
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7

Le, Huu Ton. "Improving image representation using image saliency and information gain." Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2287/document.

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De nos jours, avec le développement des nouvelles technologies multimédia, la recherche d’images basée sur le contenu visuel est un sujet de recherche en plein essor avec de nombreux domaines d'application: indexation et recherche d’images, la graphologie, la détection et le suivi d’objets... Un des modèles les plus utilisés dans ce domaine est le sac de mots visuels qui tire son inspiration de la recherche d’information dans des documents textuels. Dans ce modèle, les images sont représentées par des histogrammes de mots visuels à partir d'un dictionnaire visuel de référence. La signature d’u
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Dunlop, Mark David. "Multimedia information retrieval." Thesis, University of Glasgow, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358626.

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9

Hirzalla, Naél B. "Media processing and retrieval model for multimedia documents databases." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0013/NQ28346.pdf.

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Hirzalla, Nael B. "Media processing and retrieval model for multimedia documents databases." Thesis, University of Ottawa (Canada), 1998. http://hdl.handle.net/10393/4541.

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Typically, multimedia applications involve thousands of hours of video, images, audio, text and graphics that need to be stored, retrieved and manipulated in a large multimedia database. There is therefore an important need for novel techniques and systems which provide an efficient retrieval facility of the voluminous information stored in the multimedia database. Such a facility will consist of a query language, a query user interface, a data structure, indexing and finally content searching algorithms. Our interests focus on the first four components of such system. In this thesis, we propo
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Grande, Aleksander. "A Multimedia Approach to Medical Information Retrieval." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8966.

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<p>From the discovery of DNA by Francis H. C. Crick and James D. Watson in 1953 there have been conducted a lot of research in the field of DNA. Up through the years technological breakthroughs has made DNA sequencing more faster and more available, and has gone from being a very manual task to be highly automated. In 1990 the Human Genome Project was started and the research in DNA skyrocketed. DNA was sequenced faster and faster throughout the 1990s, and more projects with goals of sequencing other specie's DNA was initiated. All this research of DNA led to vast amounts of DNA sequences, b
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Torres, José. "Visual information retrieval through interactive multimedia queries." Thesis, Lancaster University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431417.

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Jose, Joemon M. "An integrated approach for multimedia information retrieval." Thesis, Robert Gordon University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266758.

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14

Gonzalez-Gallardo, Carlos. "Automatic Multilingual Multimedia Summarization and Information Retrieval." Thesis, Avignon, 2019. http://www.theses.fr/2019AVIG0234.

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Alors que les sources multimédias sont massivement disponibles en ligne, aider les utilisateurs à comprendre la grande quantité d'information générée est devenu un problème majeur. Une façon de procéder consiste à résumer le contenu multimédia, générant ainsi des versions abrégées et informatives des sources. Cette thèse aborde le sujet du résumé automatique (texte et parole) dans un contexte multilingue. Elle a été réalisée dans le cadre du projet CHISTERA-ANR Accès multilingue à l'information (AMIS). Le résumé multimédia basé sur le texte utilise des transcriptions pour produire des résumés
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15

Pirazzini, Lorenzo. "Sviluppo di un framework per la gestione di documenti multimediali." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Questo lavoro di tesi si propone di realizzare un sistema in grado non solo di gestire la similarità tra media di stesso tipo, in modo tale da essere al pari per potenzialità in catalogazione e ricerca dei sistemi esistenti, ma di introdurre anche il concetto di similarità tra documenti, i quali contengono media di diverso tipo. Anche se esistono già DBMS in grado di gestire tipi di media complessi, nessuno ha un modello in grado di gestire la compresenza di più tipi di dato efficientemente. Per realizzare un sistema multimediale che sia in grado di gestire non solo la similarità tra media
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Mills, Timothy J. "Content modelling in multimedia information retrieval systems : the Cobra retrieval system." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442405.

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Ebadat, Ali Reza. "Toward robust information extraction models for multimedia documents." Rennes, INSA, 2012. http://www.theses.fr/2012ISAR0022.

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L'énorme quantité de documents multimédias constamment générés incite au développement de méthodes d'analyse automatique. Dans ce cadre, notre objectif est de faciliter ce processus en extrayant des informations à partir de n'importe quel texte relatif à ces documents. En outre, nous voulons des techniques suffisamment robustes pour traiter des données bruitées et de petite taille. Pour ce faire, nous utilisons des techniques simples nécessitant peu de connaissances externes comme une garantie de robustesse. Plus précisément, nous utilisons des techniques inspirées de la recherche d'informatio
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Sukhahuta, Rattasit. "Information extraction system for Thai documents." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368173.

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Buchanan, Maria Cecelia. "Specifying temporal behavior in interactive multimedia documents /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/6933.

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Bracamonte, Nole Teresa Jacqueline. "Improving web multimedia information retrieval using social data." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/168681.

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Tesis para optar al grado de Doctora en Ciencias, Mención Computación<br>Buscar contenido multimedia es una de las tareas más comunes que los usuarios realizan en la Web. Actualmente, los motores de búsqueda en la Web han mejorado la precisión de sus búsquedas de contenido multimedia y ahora brindan una mejor experiencia de usuarios. Sin embargo, estos motores aún no logran obtener resultados precisos para consultas que no son comunes, y consultas que se refieren a conceptos abstractos. En ambos escenarios, la razón principal es la falta de información preliminar. Esta tesis se enfoca en mejo
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Fredriksson, Joakim, and Falk Höppner. "Chatbot for Information Retrieval from Unstructured Natural Language Documents." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-40532.

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This thesis brings forward the development of a chatbot which retrieves information from a data source consisting of unstructured natural language text. This project was made in collaboration with the company Jayway in Halmstad. Elasticsearch was used to create the search function and the service Dialogflow was used to process the natural language input from the user. A Python script was created to retrieve the information from the data source, and a request handler was written which connected the tools together to create a working chatbot. The chatbot correctly answers questions with a accura
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Chen, Junjie. "Learning hash codes for multimedia retrieval." HKBU Institutional Repository, 2019. https://repository.hkbu.edu.hk/etd_oa/684.

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The explosive growth of multimedia data in online media repositories and social networks has led to the high demand of fast and accurate services for large-scale multimedia retrieval. Hashing, due to its effectiveness in coding high-dimensional data into a low-dimensional binary space, has been considered to be effective for the retrieval application. Despite the progress that has been made recently, how to learn the optimal hashing models which can make the best trade-off between the retrieval efficiency and accuracy remains to be open research issues. This thesis research aims to develop has
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Vila, Duran Marius. "Information theory techniques for multimedia data classification and retrieval." Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/302664.

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We are in the information age where most data is stored in digital format. Thus, the management of digital documents and videos requires the development of efficient techniques for automatic analysis. Among them, capturing the similarity or dissimilarity between different document images or video frames are extremely important. In this thesis, we first analyze for several image resolutions the behavior of three different families of image-based similarity measures applied to invoice classification. In these three set of measures, the computation of the similarity between two images is based,
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Guglielmo, Eugene J. "Intelligent information retrieval for a multimedia database using captions." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23705.

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This report describes an intelligent information retrieval system, MARIE, that employs natural language processing techniques for indexing and retrieving multimedia data. Captions describe photographs from the Naval Air Warfare Center Weapons Division, China Lake, California; the captions were written in English consisting mostly of noun phrases. For our work, an object-oriented type hierarchy represents semantic knowledge. Captions are parsed to produce a logical form, from which nouns and verbs are extracted to form keyword files. User queries are also specified in natural language. A two-ph
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Wayshak, Corinne. "MIT in motion : an interactive multimedia information retrieval system." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14291.

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Lin, Lin. "Multimedia Data Mining and Retrieval for Multimedia Databases Using Associations and Correlations." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/434.

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With the explosion in the complexity and amount of pervasive multimedia data, there are high demands of multimedia services and applications in various areas for people to easily access and distribute multimedia data. Facing with abundance multimedia resources but inefficient and rather old-fashioned keyword-based information retrieval approaches, a content-based multimedia information retrieval (CBMIR) system is required to (i) reduce the dimension space for storage saving and computation reduction; (ii) advance multimedia learning methods to accurately identify target semantics for bridging
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James, David Anthony. "The application of classical information retrieval techniques to spoken documents." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361412.

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Schmitt, Ingo. "Ähnlichkeitssuche in Multimedia-Datenbanken Retrieval, Suchalgorithmen und Anfragebehandlung." München Wien Oldenbourg, 2004. http://deposit.ddb.de/cgi-bin/dokserv?id=2708331&prov=M&dok_var=1&dok_ext=htm.

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Orengo, Viviane Moreira. "Assessing relevance using automatically translated documents for cross-language information retrieval." Thesis, Middlesex University, 2004. http://eprints.mdx.ac.uk/13606/.

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This thesis focuses on the Relevance Feedback (RF) process, and the scenario considered is that of a Portuguese-English Cross-Language Information Retrieval (CUR) system. CUR deals with the retrieval of documents in one natural language in response to a query expressed in another language. RF is an automatic process for query reformulation. The idea behind it is that users are unlikely to produce perfect queries, especially if given just one attempt. The process aims at improving the queryspecification, which will lead to more relevant documents being retrieved. The method consists of asking t
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Chen, Xin. "Human-centered semantic retrieval in multimedia databases." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2008p/chen.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2008.<br>Additional advisors: Barrett R. Bryant, Yuhua Song, Alan Sprague, Robert W. Thacker. Description based on contents viewed Oct. 8, 2008; title from PDF t.p. Includes bibliographical references (p. 172-183).
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Hlavina, Wratko. "TAKODO: Integrating documents with knowledge bases for information retrieval and knowledge management." Thesis, University of Ottawa (Canada), 2000. http://hdl.handle.net/10393/9320.

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The expanding availability of on-line information sources, such as on-line documents, corpora, and the World Wide Web, introduces some challenges. Most notably, users must search through this material to find high-quality, relevant information. This is the domain of information retrieval. Alternatively, knowledge bases present information in a very compact and structured representation. Unfortunately, their creation is labor intensive. In order to bridge the gap between the amount of structure in the information processed by information retrieval and knowledge engineering techniques, the autho
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Laus, Frank O. "Informationsrecherche in Hypertext- und Multimedia-Dokumenten : Entwicklung eines kognitiven Navigationsmodells /." Wiesbaden : Wiesbaden : Dt. Univ.-Verl. ; Gabler, 2001. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009496395&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Tombros, Anastasios. "The effectiveness of query based hierarchic clustering of documents for information retrieval." Thesis, University of Glasgow, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248257.

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Trotman, Andrew, and n/a. "Searching and ranking structured documents." University of Otago. Department of Computer Science, 2007. http://adt.otago.ac.nz./public/adt-NZDU20070403.110440.

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It is common to see documents with explicit structure marked up in languages such as XML. Queries, on the other hand, typically have no structure. There is a clear mismatch, although documents contain structure it is typically not used in information retrieval. An efficient index structure for document-centric searching is proposed and its efficiency is discussed. It is shown to be at worst linear with respect to the number of occurrences of a given search term. The algorithm is then extended to accommodate element-centric information retrieval. Ranking algorithms for structured documents
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Immaneni, Trivikram. "A HYBRID APPROACH TO RETRIEVING WEB DOCUMENTS AND SEMANTIC WEB DATA." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1199923822.

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Ismail, Muhammad, and Attuallah Jan. "Context-based supply of documents in a healthcare process." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-18513.

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The more enhanced and reliable healthcare facilities, depend partly on accumulated organizational knowledge. Ontology and semantic web are the key factors in long-term sustainability towards the improvement of patient treatment process. Generally, researchers have the common consensus that knowledge is hard to capture due to its implicit nature, making it hard to manage. Medical professionals spend more time on getting the right information at the right moment, which is already available on intranet/internet. Evaluating the literature is controversial but interesting debates on ontology and se
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Grabs, Torsten. "Storage and retrieval of XML documents with a cluster of database systems /." Berlin : Aka, 2003. http://www.loc.gov/catdir/toc/fy0713/2007435297.html.

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Morelock, Mark Geoffrey. "A multimedia information system for architectural design." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/21604.

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Arditi, Rocha Luis M. "Intelligent retrieval system for conditions of contract documents in construction." FIU Digital Commons, 1992. http://digitalcommons.fiu.edu/etd/1304.

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The outcome of this research is an Intelligent Retrieval System for Conditions of Contract Documents. The objective of the research is to improve the method of retrieving data from a computer version of a construction Conditions of Contract document. SmartDoc, a prototype computer system has been developed for this purpose. The system provides recommendations to aid the user in the process of retrieving clauses from the construction Conditions of Contract document. The prototype system integrates two computer technologies: hypermedia and expert systems. Hypermedia is utilized to provide a dyna
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Watkins, Alfred R. "Continuous media object modeling, storage, and retrieval." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/9184.

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Das, Neves Fernando Adrian. "Stepping Stones and Pathways:Improving Retrieval by Chains of Relationships between Documents." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/29419.

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The information retrieval (IR) field has been successful in developing techniques to address many types of information needs. However, there are cases in which traditional approaches to IR are not able to produce adequate results. Examples include: when a small set of (2-3) documents is needed as an answer rather than a single document, or when "query splitting" is required to satisfactorily explore the document space. We explore an alternative model of building and presenting retrieval results for such cases. In particular, we research effective methods for handling information needs that may
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Kurz, Thomas [Verfasser], Harald [Akademischer Betreuer] Kosch, and Sören [Akademischer Betreuer] Auer. "Adapting Semantic Web Information Retrieval to Multimedia / Thomas Kurz ; Harald Kosch, Sören Auer." Passau : Universität Passau, 2020. http://d-nb.info/1215337574/34.

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Caubet, Marc, and Mònica Cifuentes. "Extracting metadata from textual documents and utilizing metadata for adding textual documents to an ontology." Thesis, Växjö universitet, Matematiska och systemtekniska institutionen, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-534.

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The term Ontology is borrowed from philosophy, where an ontology is a systematic account of Existence. In Computer Science, ontology is a tool allowing the effective use of information, making it understandable and accessible to the computer. For these reasons, the study of ontologies gained growing interest recently. Our motivation is to create a tool able to build ontologies from a set of textual documents. We present a prototype implementation which extracts metadata from textual documents and uses the metadata for adding textual documents to an ontology. In this paper we will investigate w
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Goodrum, Abby A. (Abby Ann). "Evaluation of Text-Based and Image-Based Representations for Moving Image Documents." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc500441/.

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Document representation is a fundamental concept in information retrieval (IR), and has been relied upon in textual IR systems since the advent of library catalogs. The reliance upon text-based representations of stored information has been perpetuated in conventional systems for the retrieval of moving images as well. Although newer systems have added image-based representations of moving image documents as aids to retrieval, there has been little research examining how humans interpret these different types of representations. Such basic research has the potential to inform IR system designe
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Arens, Robert Segre Alberto Maria. "Learning to rank documents with support vector machines via active learning." [Iowa City, Iowa] : University of Iowa, 2009. http://ir.uiowa.edu/etd/331.

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Moukdad, Haidar. "A comparison of root and stemming techniques for the retrieval of Arabic documents /." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38247.

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Using information retrieval systems to gain access to documents in languages other than English is becoming an increasingly significant problem. Rules, theories, algorithms, and retrieval methods designed and developed for English and other morphologically similar languages may or may not apply in the linguistic environments of other languages. The problem is particularly acute in languages that differ radically from English on account of morphological rules. This thesis compares the effects of two indexing and retrieval techniques (stemming and root retrieval) on information retrieval in Arab
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Pérez, Martínez Juan Manuel. "Contextualizing a Data Warehouse with Documents." Doctoral thesis, Universitat Jaume I, 2007. http://hdl.handle.net/10803/10482.

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La tecnología actual de los almacenes de datos y las técnicas OLAP permite a las organizaciones analizar los datos estructurados que éstas recopilan en sus bases de datos. Las circunstancias que rodean a estos datos aparecen descritas en documentos, típicamente ricos en texto. Esta información sobre el contexto de los datos registrados el almacén es muy valiosa, ya que nos permite interpretar el resultado obtenido en análisis históricos. Por ejemplo, la crisis financiera relatada una revista digital sobre economía podría explicar una caída de las ventas en una determinada región. Sin embargo,
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Stegmaier, Florian [Verfasser], and Harald [Akademischer Betreuer] Kosch. "Unified Retrieval in Distributed and Heterogeneous Multimedia Information Systems / Florian Stegmaier. Betreuer: Harald Kosch." Passau : Universitätsbibliothek der Universität Passau, 2014. http://d-nb.info/1053119267/34.

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49

Grosz, Sandra. "Keyword Extraction from Swedish Court Documents." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-272117.

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Abstract:
This thesis addresses the problem of extracting keywords which represent the rulings and and grounds for the rulings in Swedish court documents. The problem of identifying the candidate keywords was divided into two steps; first preprocessing the documents and second extracting keywords using a keyword extraction algorithm on the preprocessed documents. The preprocessing methods used in conjunction with the keywords extraction algorithms were that of using stop words and a stemmer. Then, three different approaches for extracting keywords were used; one statistic approach, one machine learning
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50

Sabry-Ismail, Loay. "Schéma d'éxécution pour les documents multimédia distribués." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10021.

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Abstract:
Le travail presente dans cette these se situe dans le domaine de la presentation de documents multimedia. Un document multimedia est le resultat de la composition d'un ensemble d'objets media de differentes natures comme le texte, les images, le son et la video. Quatre types de relations entre les objets media servent a definir l'organisation d'un document : les relations hierarchiques, temporelles, spatiales et hypermedia. La presentation d'un document multimedia consiste en la restitution des objets media qu'il contient en respectant d'une part les contraintes internes representees par les r
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