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Digital Libraries: Technological Advances and Social Impacts

Digital Libraries: Technological Advances and Social Impacts. Presented by Jozsef Vass Multimedia Communications and Visualization Laboratory Department of Computer Engineering & Computer Science University of Missouri-Columbia Columbia, MO 65211. Overview.

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Digital Libraries: Technological Advances and Social Impacts

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  1. Digital Libraries: Technological Advances and Social Impacts Presented by Jozsef Vass Multimedia Communications and Visualization Laboratory Department of Computer Engineering & Computer Science University of Missouri-Columbia Columbia, MO 65211

  2. Overview • B. Schatz and H. Chen, “Digital Libraries: Technological Advances and Social Impacts,” IEEE Computer, vol. 32, no. 2, pp. 45-50, Feb. 1999. • Digital Libraries • Digital Library Requirements • Digital Library Testbed • Digital Library Initiative - Phase 1 • Digital Library Initiative - Phase 2 • International Activities

  3. Digital Libraries • World Wide Web (WWW): Everyday Use • Exponential growth of WWW increases the importance of digital libraries • Lot of information but search is unchanged since 1960s • Natural outcome of earlier federal funding of high-end computing systems and high performance networks • Collection of all kinds must be indexed efficiently • Different media type (text, image, video) • Different collection sizes • Different languages

  4. Digital Libraries - Requirements • Federated repositories: Present distributed repositories as a coherent virtual collection • Scalability: Efficient categorization, indexing, summarizing, and extraction as the size increases • Interoperability: Interoperability among heterogeneous repositories across networks • Collaboration: Teamwork sharing knowledge, experience, and resources • Testbed:Provide stable, accessible collections to researchers • Communications:Timely dissemination of research results

  5. Testbed Development • Accepted methodology to evaluate networked systems • Testbed: A prototype system with real collections and real users but supported as a research rather than commercial product • Evaluate the usefulness of information system features

  6. Digital Library Initiative - Phase 1 • Best way to evaluate: Develop real-time testbeds • US Government Digital Library Initiative (1994-1998) • Participants: NSF, DARPA, and NASA • Large amount of heterogeneous information can be coherently organized that can be searched and manipulated to yield useful knowledge • More information: http://dli.grainger.uiuc.edu

  7. Digital Library Initiative - Phase 1 • Six projects are supported: • University of California at Berkeley: Environmental Planning and Geographic Information Systems • University of California at Santa Barbara: The Alexandria Project: Spatially-Referenced Map Information • Carnegie Mellon University: Informedia Digital Video Library • University of Illinois at Urbana-Champaign: Federating Repositories of Scientific Literature • University of Michigan: Intelligent Agents for Information Location • Stanford University: Interoperation Mechanisms Among Heterogeneous Services

  8. Digital Library Initiative - Phase 2 • Motivated by the success of Phase 1 • Participants: NSF, DARPA, NLM, Library of Congress, and National Endowment for the Humanities • Treat digital libraries as human-centered systems • Bridge political and language boundaries • Objectives • Smaller projects as well • Medicine and Humanities • Emphasize more on testbeds • More information: http://www.dli2.nsf.gov

  9. Digital Library Initiative - Phase 2 • Special emphasis on health-related professionals • Variety of locations and multiple formats (print, image, graphics, video) • NLM offering two resources for DLI-2 • Unified Medical Language System • Visible Human Project

  10. International Activities • Europe: National and EU funding • NSF-EU specify five working groups • Interoperability • Metadata • Intellectual Property Rights • Resource Indexing • Multilingual Information Access • Global connections: International Federation of Library Associations and Institutions • 1995: Libraries from 70 countries are connected • 1998: Libraries from 100 countries are connected • Challenges: Connectivity & Training

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