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author | Peng Wu <alexepico@gmail.com> | 2011-06-09 15:47:51 +0800 |
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committer | Peng Wu <alexepico@gmail.com> | 2011-06-09 16:19:37 +0800 |
commit | 982cb961cec5f400a52948a17e3d33ae10bb90b4 (patch) | |
tree | b4a9d078fbb6bf55a7034b2defe6af2ab76b6946 /utils/training/k_mixture_model.h | |
parent | 97e8d2ff85c1d611df507b079c6bca0c339ff00a (diff) | |
download | libpinyin-982cb961cec5f400a52948a17e3d33ae10bb90b4.tar.gz libpinyin-982cb961cec5f400a52948a17e3d33ae10bb90b4.tar.xz libpinyin-982cb961cec5f400a52948a17e3d33ae10bb90b4.zip |
add comments and fixes compute B in k mixture model
Diffstat (limited to 'utils/training/k_mixture_model.h')
-rw-r--r-- | utils/training/k_mixture_model.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/utils/training/k_mixture_model.h b/utils/training/k_mixture_model.h index 710fe0b..9dda1c2 100644 --- a/utils/training/k_mixture_model.h +++ b/utils/training/k_mixture_model.h @@ -54,6 +54,10 @@ static inline parameter_t compute_B(corpus_count_t N, corpus_count_t T, corpus_count_t n_0, corpus_count_t n_1){ + /* Please consider B_2 is no less than 2 in paper. */ + if ( 0 == T - n_1 && 0 == N - n_0 - n_1 ) + return 2; + parameter_t B = (T - n_1 ) / (parameter_t) (N - n_0 - n_1); return B; } |