From Seamless to Limitless Access David Stern Director of Science Libraries and Information Services Yale University New York, May
Industry Trends Searching Issues u Keywords u Controlled vocabulary u Citation tracking u Cross-database searching Linking issues u DOI-based links (CrossRef) F “appropriate copy problem” u local resolvers (sfx) u Metadata-driven (enhanced) links
Standard Search/Link Model SEARCHER INDEXLINKFULL-TEXT
Enhanced Search/Link Model SEARCHER INDEXLINKFULL-TEXT Database1 Database2 Database3 Sound Images Datasets WWW search engines Citation searches Biographies Reviews METADATA re-search
n Searching u Broadcast and Federated F Multiple simultaneous databases On-demand outreach to targets F Harvesting ( pre-created central index ) F Standard syntax conversion(s) F Limits by discipline/material type u Integrated F Media type (metadata) F Normalized indexing vocabularies hierarchies Enhanced options
n Linking u Standard concerns F Multiple resources (html, pdf) F Local resolvers (subscriptions) F Local subscriptions (aggregators) F Customized link “brand” (logo) u Enhanced possibilities F Customized to local options Local resources Selected added-value tools F Metadata re-searching Obtain additional descriptors Search across additional engines Enhanced options II
n Problem u Information overload n Solution u Additional sources searched WITH F Single search syntax F Immediate limit options before search F Navigation assistance Local resources identified/linked Relevant resources highlighted F Enhanced metadata re-searching Obtain additional logical relationships Paradox introduced and solved
n MetaLib (Boston College) n Flashpoint (Los Alamos) n Multi-SEARCH (U Arizona) n SearchLight (CDL) n OAI (many initiatives) u CogPrints u Dspace u Eprints u OAIster (Michigan) Example broadcast and federated systems
n ResearchIndex (sophisticated links) n Citebase (ranking) n ARC (eprint archives) Example linking systems n