information retrieval - besides BM25, whats other ranking functions exists? -

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besides bm25, what's other ranking functions exists? found information on topic?

bm25 1 of term-based ranking algorithms. nowadays there concept-based algorithms well.

bm25 if state-of-the-art of term based information retrieval; however, there challenges term-based cannot overcome such as, relating synonyms, matching abbreviation or recognizing homonyms. here examples:

synonym: "buy" , "purchase"

antonym: "professor" , "prof."

homonym:

  • bow – long wooden stick horse hair used play string instruments such violin
  • bow – bend forward @ waist in respect (e.g. "bow down")

to deal these problems, using concept-based models such this article , this article.

concept-based models using dictionaries or external terminologies identify concepts , each have own representation of concepts or weighting algorithms.


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