Human Evaluation of Keyword Extraction System Using Lexical Chains

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In Information Retrieval or Digital Library, one of the most important factors is to find out the exact information which users need. Exact keywords which represent the content of a document can be much help to find the exact information. In this paper, we evaluate an efficient keyword extraction system by recall and precision. The results presented here are based on the human evaluations of the quality and the appropriateness of keywords.