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Query-Oriented Keyphrase Extraction, Minghui Qiu, Yaliang Li, Jing Jiang
Query-Oriented Keyphrase Extraction, Minghui Qiu, Yaliang Li, Jing Jiang
Minghui QIU
People often issue informational queries to search engines to find out more about some entities or events. While a Wikipedia-like summary would be an ideal answer to such queries, not all queries have a corresponding Wikipedia entry. In this work we propose to study query-oriented keyphrase extraction, which can be used to assist search results summarization. We propose a general method for keyphrase extraction for our task, where we consider both phraseness and informativeness. We discuss three criteria for phraseness and four ways to compute informativeness scores. Using a large Wikipedia corpus and 40 queries, our empirical evaluation shows that …