Generation of riddles using homonyms

Abstract

This paper proposes the generation system of Japanese riddles using variety of verbal meanings between homonyms. The system deals with interesting riddles that require verbal semantic information of causal relation. The proposed system consists of the generation section and two databases. The first database has verbs, their using frequencies, and subjects or objects for verbs. The second database has effects caused by actions expressed by verbs and the strength of causal relation between actions and effects. The generation section generates interesting riddles using their databases and based on the verbs using frequencies and the strength of causal relation. This paper also shows subjects experiments in order to confirm the validity of riddles generated by the proposed system.