SENTENCE STRUCTURE VECTORIZATION DEVICE, SENTENCE STRUCTURE VECTORIZATION METHOD, AND SENTENCE STRUCTURE VECTORIZATION PROGRAM

摘要

A sentence structure vectorization device (100) is provided with: a morphological analysis unit (110) which creates a plurality of morphemes by morphologically analyzing an input sentence; a dependency analysis unit (120) which performs dependency analysis on the plurality of morphemes and thereby creates a dependency structure graph relating to the plurality of morphemes; and a sentence structure vectorization unit (130) which extracts a plurality of sets of partial structure information from the dependency structure graph, and converts a morphological sequence corresponding to the plurality of sets of partial structure information into a numerical sequence, thereby creating a sentence structure vector.