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fulfilling the DESIRE for knowledge Emma.Worsfold@Bristol.ac.uk
Subject Gateways fulfilling the DESIRE for knowledge
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Aim of subject gateways
to help users locate relevant and high quality resources on the Internet
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Subject gateways ... “doing for on-line information resources
what librarians do for books” Internet search and retrieval tool database of Internet resource descriptions selection cataloguing classification
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Information intermediaries
serving specific user groups identifying information needs building targeted and quality collections “trusted third parties” (Clifford Lynch) filter the Internet not prone to word stuffing/metadata spamming!
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Cataloguing Internet resources
(… or creating “human-generated metadata”) title keywords description URL up to 60 other attributes
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Adhering to metadata standards
Dublin Core MARC ROADS / IAFA
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Classifying Internet resources
(organising resources under subject categories) PSYCHOLOGY Theories, Laws, Metaphysical Psychology Experimental Psychology Physiological Psychology mental development sensory perception
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What’s the difference between a subject gateway and a search engine?
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Search Engines built by robots exhaustive indexing
automatically generated metadata high recall, low precision
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Subject gateways Built by humans selective catalogues
human generated metadata low recall, high precision
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An example - SOSIG
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The UK gateways Medicine OMNI Engineering EEVL Art ADAM
Social Science SOSIG Business Biz/ed History History General BUBL/NISS
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Other gateways in Europe
The Netherlands (DutchESS) Finnish Virtual Library Project Germany Sweden (EELS)
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Elsewhere ... Scout Report Signpost NetFirst Any more?
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What can users expect to see in the future?
Bigger collections International collections collections covering all subjects
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Cross-searching
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Harvesting Combine Harvester bigger databases
still some quality control
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Distributed Cataloguing
WWW-based cataloguing avoiding duplicated effort improving coverage
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A Vision for the Future an integrated virtual library for end-users
enabling users to take advantage of subject expertise around the World
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What this depends on International metadata standards
International co-operation and strategy The technologies are here - it’s the human factor that needs attention!
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DESIRE Guidelines on developing subject gateways
Research in Internet cataloguing and indexing International WORKSHOPS in 1999 “The Information Gateways Handbook”
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Internet Detective A Web-based tutorial on evaluating the quality of Internet information
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