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Los Angeles, CA
March 31, 2009 to April 2, 2009
ISBN: 978-0-7695-3507-4
pp: 154-158
ABSTRACT
Case-based recommender systems have been widely applied in suggesting products that are most similar to current user's query. By prioritizing similarity during a case-based approach may degrade the quality of the retrieval results. There have been a number of attempts to increase retrieval diversity. However, there is a trade-off between similarity and diversity. The improvements in diversity may lead to the loss of similarity. In this paper, we propose a new retrieval strategy based on the random-restart hill-climbing algorithm which optimizes the trade-off between similarity and diversity. Experimental results show that the proposed algorithm can achieve a better overall quality than other approaches.
INDEX TERMS
Case-Based Reasoning, Hill Climbing, Diversity Retrieval
CITATION
Chein-Shung Hwang, Show-Fen Lin, "Hill Climbing for Diversity Retrieval", CSIE, 2009, 2009 WRI World Congress on Computer Science and Information Engineering, CSIE, 2009 WRI World Congress on Computer Science and Information Engineering, CSIE 2009, pp. 154-158, doi:10.1109/CSIE.2009.624
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