| 摘要 |
A natural language including Japanese, Korean, Chinese, etc., is suitably processed when an undefined word which is not registered in a dictionary appears in an input character train. When the undefined word appears, semantic analysis means decides a semantic concept of the undefined word by using a case dictionary, and further by using a vocabulary hierarchy dictionary which registers vocabularies in a hierarchy structure, the semantic analysis means extracts a group of vocabularies (synonyms) corresponding to a lower concept of the semantic concept of the undefined word. The natural language processing can be achieved practically and efficiently with the dictionaries of a limited storage capacity. |
