Here, we employ ngram language 1http://www.nlplab.com/NiuPlan/NiuTrans.YourData.ch.html 2http://www.nlplab.com/NiuPlan/NiuTrans.ch.html#download 3 http://ww.itl.nist.gov/iad/mig/tools model and IBM Model 1 for data selection.
we use the SRI Language Modeling Toolkit (Stolcke, 2002) to train the in-domain 4-gram language model with interpolated modified Kneser-Ney discounting (Chen and Goodman, 1998).