1、The trouble with all these studies is that they draw firm conclusions from sparse data.
2、To solve the problem of sparse data, we need more data... obviously.
3、In order tosolve the problem caused by sparse data two concepts of modificatory degree and modificatory distance are proposed.
4、The key problem in N-gram method is the problem of sparse data which still can not be solved effectively now.
5、For the difficulty of stressful speech collection, although tested and trained in the same conditions, speech recognizer performs imperfect with sparse data.
