From Seamless to Limitless Access

1
From Seamless to Limitless Access

• David Stern
• Director of Science Libraries and Information
  Services
• Yale University

david.e.stern_at_yale.edu
New York, May 8 2003
2
Industry Trends

• Searching Issues
• Keywords
• Controlled vocabulary
• Citation tracking
• Cross-database searching
• Linking issues
• DOI-based links (CrossRef)
• appropriate copy problem
• local resolvers (sfx)
• Metadata-driven (enhanced) links

3
Standard Search/Link Model
SEARCHER
INDEX
LINK
FULL-TEXT
4
Enhanced Search/Link Model
Database1 Database2 Database3
SEARCHER
INDEX
LINK
FULL-TEXT
Sound Images Datasets WWW search engines Citation
searches Biographies Reviews METADATA re-search
5
Enhanced options

• Searching
• Broadcast and Federated
• Multiple simultaneous databases
• On-demand outreach to targets
• Harvesting (pre-created central index)
• Standard syntax conversion(s)
• Limits by discipline/material type
• Integrated
• Media type (metadata)
• Normalized indexing
• vocabularies
• hierarchies

6
Enhanced options II

• Linking
• Standard concerns
• Multiple resources (html, pdf)
• Local resolvers (subscriptions)
• Local subscriptions (aggregators)
• Customized link brand (logo)
• Enhanced possibilities
• Customized to local options
• Local resources
• Selected added-value tools
• Metadata re-searching
• Obtain additional descriptors
• Search across additional engines

7
Paradox introduced and solved

• Problem
• Information overload
• Solution
• Additional sources searched WITH
• Single search syntax
• Immediate limit options before search
• Navigation assistance
• Local resources identified/linked
• Relevant resources highlighted
• Enhanced metadata re-searching
• Obtain additional logical relationships

8
Example broadcast and federated systems

• MetaLib (Boston College)
• Flashpoint (Los Alamos)
• Multi-SEARCH (U Arizona)
• SearchLight (CDL)
• OAI (many initiatives)
• CogPrints
• Dspace
• Eprints
• OAIster (Michigan)

9
Example linking systems

• ResearchIndex (sophisticated links)
• Citebase (ranking)
• ARC (eprint archives)

• http//www.library.yale.edu/dstern/advancedsearch
  .html