DETERMINING SEMANTIC VALENCES OF ONTOLOGY CONCEPTS BY MEANS OF NONNEGATIVE FACTORIZATION OF TENSORS OF LARGE TEXT CORPORA

摘要

This paper describes a method for automatic detection of semantic relations between concept nodes of a networked ontological knowledge base by analyzing matrices of semantic-syntactic valences of words. These matrices are obtained by means of nonnegative factorization of tensors of syntactic compatibility of words. Such tensors are generated in the course of frequency analysis of syntactic structures of sentences taken from large text corpora of English Wikipedia and Simple English Wikipedia entries.