| 基于共同评分和相似性权重的协同过滤推荐算法 |
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| 引用本文： | 汪静,印鉴,郑利荣,黄创光.基于共同评分和相似性权重的协同过滤推荐算法[J].计算机科学,2010,37(2):99-104. |
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| 作者姓名： | 汪静 印鉴 郑利荣 黄创光 |
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| 作者单位： | 1. 中山大学信息科学与技术学院,广州,510275
2. 广东医学情报研究所,广州,510180 |
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| 基金项目： | 国家自然科学基金(60573097,60773198,60703111);;广东省自然科学基金(05200302,06104916);;广州市科技计划项目(2007Z3-D3071);;高等学校博士学科点专项科研基金(20050558017);;新世纪优秀人才支持计划(NCET-06-0727)资助 |
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| 摘 要： | 协同过滤推荐算法是在电子商务推荐系统中应用最成功的推荐技术之一。提出了一种基于共同评分和相似性权重的协同过滤推荐算法。该算法选择用户的共同评分数据计算用户的相似性,选择项目被用户共同评分的数据计算项目的相似性,再分别计算基于用户以及项目算法的预测评分,然后通过相似性权重结合两者得到最终的预测结果,最后再根据预测结果产生推荐。实际数据的实验结果表明,提出的算法显著提高了预测准确度,从而提高了推荐质量。
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| 关 键 词： | 电子商务 推荐系统 协同过滤 共同评分 相似性权重 |
| 收稿时间： | 2009/3/26 0:00:00 |
| 修稿时间： | 2009/6/10 0:00:00 |
Collaborative Filtering Recommendation Algorithm Based on Co-ratings and Similarity Weight |
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| WANG Jing,YIN Jian,ZHENG Li-rong,HUANG Chuang-guang.Collaborative Filtering Recommendation Algorithm Based on Co-ratings and Similarity Weight[J].Computer Science,2010,37(2):99-104. |
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| Authors: | WANG Jing YIN Jian ZHENG Li-rong HUANG Chuang-guang |
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| Affiliation: | Department of Information Science and Technology/a>;Sun-Yat Sen University/a>;Guangzhou 510275/a>;China;Guangdong Institute of Medical Information/a>;Guangzhou 510180/a>;China |
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| Abstract: | Collaborative filtering recommendation algorithm is one of the most successful technologies in the e-commerce recommendation system.This paper presented a collaborative filtering algorithm based on co-ratings and similarity weight.First,the co-ratings were selected to compute the similarity between users or items.Most importantly,the algorithm acquiring the last prediction result was acquired by combining prior predicting rating with similarity weight,from which recommendation was produced.The experimental ... |
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| Keywords: | E-commerce Recommendation system Collaborative filtering Co-rating Similarity weight |
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