Research on the hierarchical structure and relations of the complex sentence is the key task, which will help the Chinese Information Processing work to transit from the word-processing phase to the sentence-processing phase. Before doing this task, we must make clear the structure of clauses in complex sentence, and eliminate the fields, which are not whole clauses. According to the linguistics theory, this thesis firstly use the method based on formal rules to recognize part of the phrase fields, and finally uses the method of Cluster Analysis to identify the phrase fields more correctly and...
