Searching the Web

• Searching is like browsing only faster.
• Searching Services
  • Finding Search Services
    • Browse to Find the right Search Service, then search it.
    • OR use a Directories of Directories which are searchable lists of search services.
  • Collection Extent
    • Focused on collections of information
      • by subject
      • by location
      • by media type
    • "Comprehensive" over all information - success is failure
• Search Mechanisms
  • Index-based search
  • Raw data search
  • Parallel Search - e.g. SavvySearch, Cornell CSTR
  • Heuristic Graph Search - e.g. Fish-Search
  • Delayed, Periodic Search - e.g. Stanford Netnews Filtering Service (SIFT)
• Search Queries
  • Keyword, Title, Author, URL, Anchor text, Full text
  • Spatial
  • Logical Combinations, Weighted
  • Query Refinement
  • Natural Language
• Search Results
  • Number of Matches
  • Relevance
  • Show Metadata
  • Show Abstract or Excerpt