Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval
Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval
S. Robertson,S. Walker
1994 · DOI: 10.1007/978-1-4471-2099-5_24
Annual International ACM SIGIR Conference on Research and Development in Information Retrieval · 1,803 Citações
TLDR
The 2-Poisson model for term frequencies is used to suggest ways of incorporating certain variables in probabilistic models for information retrieval, and substantial performance improvements are demonstrated.