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-rw-r--r--src/training/estimate_interpolation.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/training/estimate_interpolation.cpp b/src/training/estimate_interpolation.cpp
index 5aa9ea5..afe369e 100644
--- a/src/training/estimate_interpolation.cpp
+++ b/src/training/estimate_interpolation.cpp
@@ -73,7 +73,7 @@ parameter_t compute_interpolation(SingleGram * deleted_bigram,
guint32 freq = 0;
parameter_t elem_poss = 0;
PhraseItem item;
- if (unigram->get_phrase_item(token, item)){
+ if (!unigram->get_phrase_item(token, item)){
guint32 freq = item.get_unigram_frequency();
guint32 total_freq = unigram->get_phrase_index_total_freq();
elem_poss = freq / (parameter_t)total_freq;