PURPOSE: A predicate-argument structure(PAS) based relation recognition method and an apparatus using the same are provided to determine relations between meanings of words using a PAS as a quality vector. CONSTITUTION: A parser(104) acquires a predicate-argument relation graph by analyzing predicate-argument relations of a sentence. A PAS(Predicate-Argument Structure) pattern extractor(106) extracts a PAS pattern by only extracting a PAS which expresses a meaningful relation between two parts of a sentence. A quality vector generator(108) creates a quality vector using the predicate-argument relation.
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