Document (#32922)

Author
Na, S.-H.
Kang, I.-S.
Lee, J.-H.
Title
Adaptive document clustering based on query-based similarity
Source
Information processing and management. 43(2007) no.4, S.887-901
Year
2007
Abstract
In information retrieval, cluster-based retrieval is a well-known attempt in resolving the problem of term mismatch. Clustering requires similarity information between the documents, which is difficult to calculate at a feasible time. The adaptive document clustering scheme has been investigated by researchers to resolve this problem. However, its theoretical viewpoint has not been fully discovered. In this regard, we provide a conceptual viewpoint of the adaptive document clustering based on query-based similarities, by regarding the user's query as a concept. As a result, adaptive document clustering scheme can be viewed as an approximation of this similarity. Based on this idea, we derive three new query-based similarity measures in language modeling framework, and evaluate them in the context of cluster-based retrieval, comparing with K-means clustering and full document expansion. Evaluation result shows that retrievals based on query-based similarities significantly improve the baseline, while being comparable to other methods. This implies that the newly developed query-based similarities become feasible criterions for adaptive document clustering.

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  5. Muresan, G.; Harper, D.J.: Topic modeling for mediated access to very large document collections (2004) 0.26
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