• Simple keyword matching

  • substrings, exact words, capitalizations

  • extended ASCII characters (é, ß, ø)

• Putting words together

  • AND (+), OR and NOT (-): Boolean matching

  • parentheses

  • phrase searching

  • proximity (near) searching

• Beyond exact matches

• stemming

• thesaurus

• fuzzy matching

• NLP (Natural Language Processing)

• "more like this"

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Thunderlizard Web Design World
Seattle, July 19, 1999

Avi Rappoport: Search Tools Consulting
www.searchtools.com