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Harmonic Mean Weight by Combining Content Based Filtering and Collaborative Filtering in a Recommender System  

정경용 (인하대학교 전자계산학과)
류중경 (대림대학 컴퓨터정보과)
강운구 (가천길대학 뉴미디어과)
이정현 (인하대학교 전자계산학과)
Abstract
Recent recommender system user a method of combining collaborative filtering system and content based filtering system in order to slove the problem of the Sparsity and First-Rater in collaborative filtering system. In this paper, to make up for the prediction accuracy in hybrid Recommender system, the harmonic mean weight(CBCF_harmonic_mean) is used for calculating the user similarity weight. After setting up the threshold as 45 considering the performance of content based filtering, we apply significance weight of n/45 to user similarity weight. To estimate the performance of the proposed method, it if compared with that of combing both the existing collaborative filtering system and the content- based filtering system. As a result, it confirms that the suggested method is efficient at improving the prediction accuracy as solving problems of the exiting collaborative filtering system.
Keywords
CRM; Collaborative Filtering; Content Based Filtering; CRM; Naive Bayes; Recommender System;
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Times Cited By KSCI : 3  (Citation Analysis)
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