Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval (1994)
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| Venue: | In Proceedings of SIGIR’94 |
| Citations: | 289 - 9 self |
BibTeX
@INPROCEEDINGS{Robertson94somesimple,
author = {S. E. Robertson and S. Walker},
title = {Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval},
booktitle = {In Proceedings of SIGIR’94},
year = {1994},
pages = {232--241},
publisher = {Springer-Verlag}
}
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Abstract
The 2–Poisson model for term frequencies is used to suggest ways of incorporating certain variables in probabilistic models for information retrieval. The variables concerned are within-document term frequency, document length, and within-query term frequency. Simple weighting functions are developed, and tested on the TREC test collection. Considerable performance improvements (over simple inverse collection frequency weighting) are demonstrated. 1
