Official websites use .gov
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.gov website belongs to an official
government organization in the United States.
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A lock (
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connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of different term reweighting algorithms for queries expanded with the local context analysis term ranking algorithm in terms of the percentage change of precision in the top 5, 10, 15, 20, and 30 retrieved documents from the original queries.
