QUEST: Query Expansion Using Synonyms over Time
نویسندگان
چکیده
A particular problem of searching news archives with named entities is that they are very dynamic in appearance compared to other vocabulary terms, and synonym relationships between terms change with time. In previous work, we proposed an approach to extracting time-based synonyms of named entities from the whole history of Wikipedia. In this paper, we present QUEST (Query Expansion using Synonyms over Time), a system that exploits time-based synonyms in searching news archives. The system takes as input a named entity query, and automatically determines time-based synonyms for a given query wrt. time criteria. Query expansion of the determined synonyms can be employed in order to improve the retrieval effectiveness.
منابع مشابه
Norwegian University of Science and Technology Technical Report IDI-TR-8/2010 Exploiting Time-based Synonyms in Searching Document Archives
Recently a large number of easily accessible information resources have become available. To increase search quality, document creation time can be taken into account in order to increase precision, and query expansion of named entities can be employed in order to increase recall. A peculiarity of named entities compared to other vocabulary terms is that they are very dynamic in appearance, and...
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