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- W80430678 abstract "Topic tracking (TT) is an important component of topic detection and tracking (TDT) applications. TT algorithms aim to determine all subsequent stories of a certain topic based on a small number of initial sample stories. We propose an alternative similarity measure based on chronological term ranking (CTR) concept to quantify the relatedness among news articles for topic tracking. The CTR approach is based on the fact that in general important issues are presented at the beginning of news articles. By following this observation we modify the traditional Okapi BM25 similarity measure using the CTR concept. Using a large standard test collection we show that our method provides a statistically significantly improvement with respect to the Okapi BM25 measure. The highly successful performance indicates that the approach can be used in real applications." @default.
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- W80430678 date "2012-10-30" @default.
- W80430678 modified "2023-10-18" @default.
- W80430678 title "Topic Tracking Using Chronological Term Ranking" @default.
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- W80430678 doi "https://doi.org/10.1007/978-1-4471-4594-3_36" @default.
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