Discussion and Conclusions

• Searching Behaviour
  • Brief Initial Queries
  • Satisfaction with Initial Queries and Search Results
  • Small Number of Documents Viewed and Judged Relevant
  • Limited Query Reformulation with Selective Strategies
• Incremental Query Expansion
• Automatic v Interactive Query Expansion
• Evaluation Constraints
  • Site Selection
  • Distributed Networked Environment
  • Database Test Beds
  • User Interface
  • Data Collection Instruments
  • Information-seeking Activities
• Summary of Findings
  • Explicit v Implicit Use of the Thesaurus
  • Automatic v Interactive Query Expansion
  • System v User Control
  • Document v Term Relevance
  • Interface v Functionality