IR-part1

13 query opmizaon example process in order of

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Unformatted text preview: commercial retrieval tool for 3 decades. §༊  Many search systems you s*ll use are Boolean: §༊  Email, library catalog, Mac OS X Spotlight 36 Introduc)on to Informa)on Retrieval Sec. 1.4 Example: WestLaw http://www.westlaw.com/ §༊  Largest commercial (paying subscribers) legal search service (started 1975; ranking added 1992; new federated search added 2010) §༊  Tens of terabytes of data; ~700,000 users §༊  Majority of users still use boolean queries §༊  Example query: §༊  What is the statute of limitations in cases involving the federal tort claims act? §༊  LIMIT! /3 STATUTE ACTION /S FEDERAL /2 TORT /3 CLAIM §༊  /3 = within 3 words, /S = in same sentence 37 Introduc)on to Informa)on Retrieval Sec. 1.4 Example: WestLaw http://www.westlaw.com/ §༊  Another example query: §༊  Requirements for disabled people to be able to access a workplace §༊  disabl! /p access! /s work- site work- place (employment /3 place...
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This document was uploaded on 02/14/2014.

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