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Distance education : What could technology offer ?

Distance education : What could technology offer ?. Gérard CHOLLET chollet@tsi.enst.fr ENST/CNRS-LTCI 46 rue Barrault 75634 PARIS cedex 13 http://www.tsi.enst.fr/~chollet. Information Technologies for Distance Education.

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Distance education : What could technology offer ?

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  1. Distance education : What could technologyoffer ? Gérard CHOLLETchollet@tsi.enst.frENST/CNRS-LTCI46 rue Barrault75634 PARIS cedex 13http://www.tsi.enst.fr/~chollet

  2. Information Technologies for Distance Education • Development of multimedia computer terminals with advanced I/O devices (audio and video), • High (or not so high) bandwidth networks including VoIP, multicasting, videoconferencing, chat spaces, discussion forums, email, … • Storage media (CDROM, DVD, …) • Compression of audio- and video-documents • Semantic encoding of such documents • Multilingual access to information content • Natural Language and Speech Understanding

  3. The ARISTOTLE project • Make accessible to 2000 students, through a University Intranet and through high bandwidth Internet (2Mbps), a first year university course on Biology. • Provide anytime, anywhere access to the course material, including lectures, indexing, search engine, chat space, forum, email,… • Develop Natural Language and Speech Processing tools to improve interaction between students, teachers and the knowledge web.

  4. Internetwork SERVER Media Server Administrator Web Server Administrator Internet Browser RealPlayer G2 plug-in Streaming Media Server BitcastingMPEG plug-in • CONTENT DIRECTORIES • MPEG, JPEG files • HTML files • SMIL, RealText Files WebServer CLIENT Components of The Online-Classroom of Aristotle

  5. Aristotle on-line lecture

  6. Genetics CelullarOrganization GeneticEngineering BIOLOGY DNA Evolution Legend: Knowledge Node DarwinianEvolution LinkType1:Subtopic/Supertopic Evolutionof primates LinkType2:Related Knowledge Web Representation

  7. Challenges of future education using IT • Develop new pedagogical paradigms • Personalisation and group synergy • Access to information and guidance • Communication between students, between students and teachers, and between students and educational software • Worldwide accessability for all languages of the world • Improve networking technology

  8. A perspective • Language independent knowledge web • Information on this web is represented semantically (for ex. in UNL: a pivot language) • The student can access this information in (his, her) own language • Information is generated from the pivot language to the target (natural) language • Tools are being developed to help teachers create this knowledge web and validate the UNL representation and translation in various languages.

  9. What is the Universal Networking Language(UNL)? • An initiative from the United Nations, • A common (standard, artificial) language for computers to express (encode) information written in natural language, • Consists of Universal Words , Relations, Semantic attributes, Knowledge Base, • Represent sentences as a semantic graph A node represents a concept An arc represents a relation

  10. translate(icl>do) computers(icl>machine) agt UNL: Universal Networking Language • semantic representation of sentences: • “ How is translation performed by computers? ” ... extraction of relevant keywords to build the query: • agt(translate(icl>do),computer(icl>machine))

  11. Languages covered so far : • The 6 UN official languages : Arabic, Chinese, English, French, Spanish, Russian • and other languages : German, Greek, Hindi, Indonesian, Italian, Japanese, Korean, Mongol, Latvia, Portuguese, Thai

  12. Internet Web Page Contents UNL-server Language Server A UNL <--> Chinese enconverter deconverter UNL Proxy Internet Chinese UNL Viewer Language Server B UNL <--> French enconverter deconverter French UNL architecture

  13. Access to Multilingual documents using UNL

  14. Conclusions and Perspectives • a semantic representation of content is a benefit for: • the creation of non-ambiguous textual material, • an efficient search through large databases, • the access to such material in many languages of the world. • multimedia compression will always be beneficial for: • a fast access to information, • the indexing of audio-visual documents.

  15. Thanks for your attention

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