Current Slide

Small screen detected. You are viewing the mobile version of SlideWiki. If you wish to edit slides you will need to use a larger device.

Retrieval based on probabilistic LM

  • Treat the generation of queries as a random process.

  • Approach

    • Infer a language model for each document.

    • Estimate the probability of generating the query according to each of these models.

    • Rank the documents according to these probabilities.

    • Usually a unigram estimate of words is used

      • Some work on bigrams, paralleling van Rijsbergen

Speaker notes:

Content Tools


There are currently no sources for this slide.