Bayesian Extension to the Language Model for Ad Hoc Information Retrieval - Zaragoza et al. (2003)
http://citeseer.ist.psu.edu/zaragoza03bayesian.html
ベイズ推定を用いる1-gram(トピック)言語モデル
... one of the best smoothing techniques used today in LMs is
Bayes-Smoothing or Dirichlet Smoothing [2006-02-21-4].