CACTUS: A User-friendly Toolkit for Semantic Categorization and Clustering in the Open Domain
نویسنده
چکیده
In this paper, we present a tool for the semantic categorization and clustering of opendomain named entities (NEs) and common nouns (CNs), the Categorization And Clustering Tool for User-defined Semantic classes, or CACTUS. The tool performs either of the two tasks, using Hearst-style (Hearst, 1992) search queries with a web search engine: assignment of NEs/CNs to user-provided semantic classes, and semantic clustering of the NEs/CNs into a user-defined number of classes. We evaluate our approach on a dataset of 400 NEs/CNs and obtain encouraging results indicating that webquery-based semantic categorization in the (nearly) untrained open domain acheives accuracy comparable to supervised, limited-domain systems.
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