1 / 11

Weighting Schemes

Weighting Schemes. Document Representation Tf-Idf scheme Some extensions of Tf-Idf BM-25 BM-25F. Document Representation. tf-idf weighting. Variant tf-idf functions. Variant tf-idf functions. BM-25. BM-25, IDF. Binary Independence Model. BM-25f. BM-25f. Reference.

nirav
Download Presentation

Weighting Schemes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Weighting Schemes Document Representation Tf-Idf scheme Some extensions of Tf-Idf BM-25 BM-25F

  2. Document Representation

  3. tf-idf weighting

  4. Variant tf-idf functions

  5. Variant tf-idf functions

  6. BM-25

  7. BM-25, IDF

  8. Binary Independence Model

  9. BM-25f

  10. BM-25f

  11. Reference • Stephen E. Robertson, Steve Walker, Susan Jones, Micheline Hancock-Beaulieu, and Mike Gatford. Okapi at TREC-3. In Proceedings of the Third Text Retrieval Conference (TREC 1994). Gaithersburg, USA, November 1994. • Christopher D. Manning, PrabhakarRaghavan, HinrichSchütze. An Introduction to Information Retrieval, Cambridge University Press, 2009, • Hugo Zaragoza, Nick Craswell, Michael Taylor, SuchiSaria, and Stephen Robertson. Microsoft Cambridge at TREC-13: Web and HARD tracks. In Proceedings of TREC-2004. • Integrating the Probabilistic Model BM25/BM25F into Lucene (http://nlp.uned.es/~jperezi/Lucene-BM25/)

More Related