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

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Presentation on theme: "Open Digital Libraries Edward A. Fox Virginia Tech, Dept. of Computer Science."— Presentation transcript:

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

2 November 6, 2002Edward A. Fox, Virginia Tech2 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.

3 November 6, 2002Edward A. Fox, Virginia Tech3 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, …

4 November 6, 2002Edward A. Fox, Virginia Tech4 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video usersdigital objects ?

5 November 6, 2002Edward A. Fox, Virginia Tech5 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video componentized digital library ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

6 November 6, 2002Edward A. Fox, Virginia Tech6 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video open digital library OA PMH XPMH

7 November 6, 2002Edward A. Fox, Virginia Tech7 Open Digital Library Component Extended OPEN ARCHIVE OPEN ARCHIVE

8 November 6, 2002Edward A. Fox, Virginia Tech8 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 Document 1010100101 0100101010 1001010101 0101010101 ETD-1 1010100101 0100101010 1001010101 0101010101 Program 1010100101 0100101010 1001010101 0101010101 ETD-2 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 Image 1010100101 0100101010 1001010101 0101010101 ETD-3 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 Video 1010100101 0100101010 1001010101 0101010101 ETD-4 Digital Library for the Networked Digital Library of Theses and Dissertations (www.ndltd.org) Search Filter Union Recent Browse PMH ODLRecent ODLBrowse ODLUnion ODLSearch ODLUnion PMH USER INTERFACE Students and researchers ETD collections Example Open Digital Library

9 November 6, 2002Edward A. Fox, Virginia Tech9 Example Open Digital Library Digital Library for the Computer Science Teaching Center (www.cstc.org)

10 November 6, 2002Edward A. Fox, Virginia Tech10 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.

11 November 6, 2002Edward A. Fox, Virginia Tech11 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.

12 November 6, 2002Edward A. Fox, Virginia Tech12 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/

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