Multinomial approach and multiple-bernoulli approach for information retrieval based on language modeling

Authors:
Hua Huo;Junqiang Liu;Boqin Feng
Affiliations:
Department of Computer Science, Xi'an Jiaotong University, P.R. China;School of Electronics and Information, Henan University of Science and Technology, P.R.China;Department of Computer Science, Xi'an Jiaotong University, P.R. China
Venue:
FSKD'05 Proceedings of the Second international conference on Fuzzy Systems and Knowledge Discovery - Volume Part I
Year:
2005

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Abstract

We present a new retrieval method based on multiple-Bernoulli model and multinomial model in this paper. We use the multiple-Bernoulli model and multinomial model to estimate the term probabilities by importing the conjugate prior and the term frequencies, and use Dirchlet method to smooth the models for solving the ”zero probability” problem of the language model.