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Open Digital Libraries

Open Digital Libraries. Edward A. Fox Virginia Tech, Dept. of Computer Science. Thesis Statement. Open Digital Libraries (DLs) Open Archives Initiative (OAI) Protocol for Metadata Harvesting (PMH) Extending OAI-PMH provides the glue for building componentized DLs.

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Open Digital Libraries

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  1. Open Digital Libraries Edward A. Fox Virginia Tech, Dept. of Computer Science

  2. Thesis Statement • Open Digital Libraries (DLs) • Open Archives Initiative (OAI) • Protocol for Metadata Harvesting (PMH) • Extending OAI-PMH provides the glue for building componentized DLs. • Lightweight protocols connect the components to support modular systems with good efficiency. Edward A. Fox, Virginia Tech

  3. Research in a Nutshell • We build extensible modular systems with customizable services. • This supports interoperability and allows distributed development. • This is in use in www.cstc.org, AmericanSouth.org, www.citidel.org, … • Components include search, browse, annotate, editorial support, union, filter, whats-new, submit, rate, recommend, … Edward A. Fox, Virginia Tech

  4. Video Image Image Image Video Video Program Program Program 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 Document Document Document 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 ? users digital objects Edward A. Fox, Virginia Tech

  5. Program Video Video Image Image Program Program Video Image ? 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 ? ? ? ? ? ? ? ? ? ? ? ? Document ? Document Document ? 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 ? 1010100101010010101010010101010101010101 ? ? ? ? ? ? componentized digital library Edward A. Fox, Virginia Tech

  6. Program Video Video Image Image Program Program Video Image XPMH 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 OA OA XPMH PMH OA XPMH OA XPMH XPMH OA XPMH OA Document Document Document XPMH XPMH 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 XPMH OA OA XPMH OA PMH XPMH open digital library Edward A. Fox, Virginia Tech

  7. Extended OPEN ARCHIVE Open Digital Library Component OPEN ARCHIVE Edward A. Fox, Virginia Tech

  8. ETD-2 ETD-4 Video ETD-3 Image Program Program Video Image 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 ETD-1 Document Document 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 1010100101010010101010010101010101010101 Example Open Digital Library ODLRecent USER INTERFACE Recent PMH ODLUnion Filter PMH ODLUnion Union Browse PMH ODLBrowse PMH ODLUnion Filter PMH Students and researchers Search ODLSearch Digital Library for the Networked Digital Library of Theses and Dissertations (www.ndltd.org) ETD collections Edward A. Fox, Virginia Tech

  9. Example Open Digital Library Digital Library for the Computer Science Teaching Center (www.cstc.org) Edward A. Fox, Virginia Tech

  10. Digital Library In A Box • http://dlbox.nudl.org, part of NSF’s National Science Digital Library (www.nsdl.org), offers “Shrink-wrap” Open Digital Library Components. • Users install ready-made digital library solutions, or build their own from snap-together components. Edward A. Fox, Virginia Tech

  11. Benefit to AOL • AOL could rapidly develop prototypes for sophisticated systems. • AOL users could do the same. • Such OAI collections could be a new base of data for AOL services. • AOL could help/encourage its user community to build their own DLs and to share their data through OAI-PMH. Edward A. Fox, Virginia Tech

  12. Contact Information Edward A. Fox Dept. of Computer Science,Virginia Tech +1-540-231-5113 fox@vt.edu FAX: +1-540-231-6075 http://www.dlib.vt.edu/ Edward A. Fox, Virginia Tech

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