基于用户模糊相似度的协同过滤算法

吴毅涛; 张兴明; 王兴茂; 李晗

doi:10.11959/j.issn.1000-436x.2016024

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基于用户模糊相似度的协同过滤算法

学术通信 | 更新时间：2024-06-05

- 基于用户模糊相似度的协同过滤算法
- User fuzzy similarity-based collaborative filtering recommendation algorithm
- 通信学报 2016年37卷第1期页码：199-207
- 作者机构：
  
  国家数字交换系统工程技术研究中心，河南郑州 450002
- 作者简介：
  
  [ "吴毅涛（1991-），男，陕西西安人，国家数字交换系统工程技术研究中心硕士生，主要研究方向为数据挖掘、社会化网络、推荐算法。" ]
  [ "张兴明（1963-），男，河南新乡人，国家数字交换系统工程技术研究中心教授，主要研究方向为通信与信息系统、宽带信息网络等。" ]
  [ "王兴茂（1989-），男，辽宁营口人，国家数字交换系统工程技术研究中心硕士生，主要研究方向为数据挖掘、用户行为分析、推荐算法。" ]
  [ "李晗（1987-），女，河南汤阴人，国家数字交换系统工程技术研究中心工程师，主要研究方向为嵌入式系统。" ]
- 基金信息：
  
  国家重点基础研究发展计划（“973”计划）基金资助项目(2012CB315901);国家高技术研究发展计划（“863”计划）基金资助项目(2011AA01AA103)
- DOI：10.11959/j.issn.1000-436x.2016024
  中图分类号： TP393
- 网络出版日期：2016-01，
  
  纸质出版日期：2016-04-25
- 稿件说明：
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吴毅涛, 张兴明, 王兴茂, 等. 基于用户模糊相似度的协同过滤算法[J]. 通信学报, 2016,37(1):199-207.

tao WUYi, ming ZHANGXing, mao WANGXing, et al. User fuzzy similarity-based collaborative filtering recommendation algorithm[J]. Journal on communications, 2016, 37(1): 199-207.
吴毅涛, 张兴明, 王兴茂, 等. 基于用户模糊相似度的协同过滤算法[J]. 通信学报, 2016,37(1):199-207. DOI： 10.11959/j.issn.1000-436x.2016024.

tao WUYi, ming ZHANGXing, mao WANGXing, et al. User fuzzy similarity-based collaborative filtering recommendation algorithm[J]. Journal on communications, 2016, 37(1): 199-207. DOI： 10.11959/j.issn.1000-436x.2016024.

摘要

针对离散评分不能合理表达用户观点和传统协同过滤算法存在稀疏性等问题，借鉴年龄模糊模型，提出了梯形模糊评分模型。该模型将离散评分模糊化为梯形模糊数，考虑了评分模糊性和信息量，通过梯形模糊数来计算用户相似度，据此设计了协同过滤算法，并证明了该算法是传统协同过滤算法在模糊域的扩展。实验表明，该算法在数据稀疏且用户数远多于项目数时性能突出，并且算法运行时间远小于传统协同过滤算法。

Abstract

In order to reflect the actual case of human decisions and solve the data sparseness problem of traditional col-laborative filtering recommendation algorithm

a trapezoid fuzzy model based on age fuzzy model was proposed. In this model

crisp point was fuzzified into trapezoid fuzzy mber and the fuzziness and information of users' grade was taken into account when calculating user's similarity by trapezoid fuzzy number. Based on this model

the user fuzzy similari-ty-based collaborative filtering recommendation algorithm was designed. The algorithm was proved to be an extension of traditional collaborative filtering algorithm in fuzzy fields. The experimental results show that

the proposed algorithm performs better when implemented in the sparse dataset with more user than item

and its running time is much less than traditional collaborative filtering algorithm.

关键词

Keywords

references

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