Self-organizing Conceptual Map and Taxonomy of Adjectives
نویسندگان
چکیده
This paper presents a comprehensive, corpus-based study of adjectival concepts. An adjectival concept is a semantic class of adjectives, for example, “adjectives which express feeling”. We represent adjectival concepts by abstract nouns (such as “feeling”), and extract instances where abstract nouns are modified by adjectives (such as “happy feeling”) from a large corpus of Japanese newspaper articles. Then we automatically construct a two-dimensional map of adjectival concepts by using the Kohonen Self-organizing Map (SOM). Not only does this SOM map effectively visualize the concept space of adjectives, it also readily allows us to extract a taxonomy of adjectival concepts. Using the SOM map and the taxonomy extracted, we are able to investigate the breadth of various adjectival concepts and the inter-relations between them.
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