計算兩個詞之間的KLdistance，主要是把詞分群用的程式，在使用之前要先建立好特徵矩陣，方可算出兩個詞之間的距離，內附件利特徵矩陣程式-Calculated KLdistance between two words, the word is mainly used for clustering program, first established good before using the feature matrix, only calculate the distance between