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Reexamining the Cluster Hypothesis: Scatter/Gather on Retrieval Results (1996)
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BibTeX
@INPROCEEDINGS{Hearst96reexaminingthe,
author = {Marti A. Hearst and Jan O. Pedersen},
title = {Reexamining the Cluster Hypothesis: Scatter/Gather on Retrieval Results},
booktitle = {},
year = {1996},
pages = {76--84}
}
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Abstract
We present Scatter/Gather, a cluster-based document browsing method, as an alternative to ranked titles for the organization and viewing of retrieval results. We systematically evaluate Scatter/Gather in this context and find significant improvements over similarity search ranking alone. This result provides evidence validating the cluster hypothesis which states that relevant documents tend to be more similar to each other than to non-relevant documents. We describe a system employing Scatter/Gather and demonstrate that users are able to use this system close to its full potential. 1 Introduction An important service offered by an information access system is the organization of retrieval results. Conventional systems rank results based on an automatic assessment of relevance to the query [20]. Alternatives include graphical displays of interdocument similarity (e.g., [1, 22, 7]), relationship to fixed attributes (e.g., [21, 14]), and query term distribution patterns (e.g., [12]). I...
Keyphrases
scatter gather retrieval result cluster hypothesis significant improvement information access system query term distribution pattern full potential graphical display cluster-based document similarity search relevant document automatic assessment non-relevant document interdocument similarity conventional system rank result important service
