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Internet Resources Discovery (IRD)

Internet Resources Discovery (IRD). Additional Aspects. Additional Aspects. Personal vs. public library Multimedia library Library composition and cccess Search engines vs. Digital libraries Parallel evolution of SE/DLs. Personal vs. Public Library. Multimedia DL. Mixed Media Library

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Internet Resources Discovery (IRD)

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  1. Internet Resources Discovery (IRD) Additional Aspects T.Sharon-A.Frank

  2. Additional Aspects • Personal vs. public library • Multimedia library • Library composition and cccess • Search engines vs. Digital libraries • Parallel evolution of SE/DLs T.Sharon-A.Frank

  3. Personal vs. Public Library T.Sharon-A.Frank

  4. Multimedia DL • Mixed Media Library • Multimedia Summaries • Multimedia User Interface • Query by Example • Hypermedia Support • Multimedia Engine: • MMDB (Multimedia Database) • MMIR (Multimedia Information Retrieval) T.Sharon-A.Frank

  5. Composed Digital Libraries University Library Life Sciences Exact Sciences Social Sciences Computer Science Chemistry Software Hardware T.Sharon-A.Frank

  6. Search Results: Several Possible Representations • Document Titles - Ranked • Summaries • Abstracts • Full Documents T.Sharon-A.Frank

  7. DL Access Methods Natural LanguageDeclarative Procedural Transparent Access Search on Keywords/Fields Browse/Navigate View/Cross Full Index Topics Tree Relations DL Summaries Resources Documents T.Sharon-A.Frank

  8. Many Access Methods? T.Sharon-A.Frank

  9. WEB Digital Library Search Engine Directory

  10. SE vs. DL Potential Coverage Resources SE Relevant DL T.Sharon-A.Frank

  11. SE vs. DL - Server Side T.Sharon-A.Frank

  12. SE vs. DL - Client Side T.Sharon-A.Frank

  13. Digital Library (DL) Search Engine (SE) Resource Repositories Hierarchy Directory (Catalog, Guide, Subject Gateway) Basic SE (BSE) Popularity SE (PSE) Harvested DL (HDL) Federated DL (FDL) Stand Alone DL (SDL) Meta SE (MSE) T.Sharon-A.Frank

  14. Parallel Evolution of SEs and DLs Search Engines Generations Digital Libraries Generations 1st Generation – Single DL (SDL) local, classical, focused material, digitized or scanned 1st Generation – Basic Search Engine includes Robots, Indices, Directories, basic/advanced user interfaces 2nd Generation – Meta Search Engine uses several basic-SEs simultaneously, ranks gathered pages by relevancy 2nd Generation – Federated (FDL) several autonomous SDLs representing heterogeneous networked repositories 3rd Generation – Popularity Search Engine uses link analysis and use frequency measures to filter and rank the Web pages 3rd Generation – Harvested (HDL) contains only summaries and metadata structures; domain focused, of fine granularity T.Sharon-A.Frank

  15. 3rd Generation HDL 4th Generation INTELIGENT DL (KM, AI) 5th Generation MEGA / META PORTAL Next Generations T.Sharon-A.Frank

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