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ylyin / hw2-team05

SE final project
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Document re-ranking enhancement #7

Closed yuchenz-cmu closed 11 years ago

yuchenz-cmu commented 12 years ago

Enhance the current tf_idf based document re-ranking mechanism by:

  1. Looking into a better way to tune the weights for interpolation
  2. Looking into a better mechanism other than tf_idf (e.g. Okapi BM25)
yuchenz-cmu commented 12 years ago

Fetching 100 documents instead of 10 hurts the performance badly, need to find out why.