Word Segmentation Method Research Based on Enriching Dictionary Gradually

With the fast development of modern society,many new words appear continuously.In the existing word segmentation methods based on matching strings,most of them dictionaries are changeless.If a new word appears,it can't be recognized accurately.So this paper puts forward the method of enriching words to dictionary gradually.It registers the strings of being segmented mistakenly by statistics method.If the word frequency exceeds the threshold,it can be taken for a new word and it will be put into the dictionary.Then the dictionary can be enriched dynamically.Experiment shows this method can improve the segmentation accuracy while retaining its speed.