(vii) Time Predicate verbs are classified by taking into account the meaning of the dominated words and their cases. (Figure 2) The sentence pattern table is constructed based on this predicate verb classification. (Figure 3) In the news retrieval system, about 5600 predicate verbs are classified into 586 classes; this classification is called case-information(A4-code). The sentence pattern table contains 1686 patterns. A Sentence pattern in the table is composed of four triplets at most. Elements of the triplet are the semantic class identification code of the noun word, kaku-joshi, and the "role" which is determined in terms of the values of the first two elements. For example "shihai-suru"(control) and "kogeki-suru"(attaek) belong to No.46 category. The predicate verb of this category h...

Click Here to View the Paper In XML Format