Apply the same hack as conversion to prediction for transition cost from history node
Sometimes transition cost is too high and causes a bug Issue 274.
For example, "接続詞 が" -> "始まる 動詞,五段活用,基本形" has very large cost and "始まる" is demoted. To prevent such cases, ImmutableConverter computes transition from BOS/EOS too; see ImmutableConverterImpl::MakeLatticeNodesForHistorySegments().
This CL introduces the same hack for DictionaryPredictor::GetLMCost so that similar language model can be applied to both suggestion candidates and conversion candidates.
Closes Issue 274.
Patch from Noriyuki Takahashi.
BUG=Issue mozc:274
TEST=unittest
git-svn-id: http://mozc.googlecode.com/svn/trunk/src/session@500 a6090854-d499-a067-5803-1114d4e51264
1 file changed
