Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator

Recommender systems have become significant tools in electronic commerce, proposing effectively those items that best meet the preferences of users. A variety of techniques have been proposed for the recommender systems such as, collaborative filtering and content-based filtering. This study propose...

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Main Authors: Javad Basiri, Azadeh Shakery, Behzad Moshiri, Morteza Zihayat
Format: Article
Language:English
Published: Iran Telecom Research Center 2010-12-01
Series:International Journal of Information and Communication Technology Research
Subjects:
Online Access:http://ijict.itrc.ac.ir/article-1-251-en.html
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author Javad Basiri
Azadeh Shakery
Behzad Moshiri
Morteza Zihayat
author_facet Javad Basiri
Azadeh Shakery
Behzad Moshiri
Morteza Zihayat
author_sort Javad Basiri
collection DOAJ
description Recommender systems have become significant tools in electronic commerce, proposing effectively those items that best meet the preferences of users. A variety of techniques have been proposed for the recommender systems such as, collaborative filtering and content-based filtering. This study proposes a new hybrid recommender system that focuses on improving the performance under the "new user cold-start" condition where existence of users with no ratings or with only a small number of ratings is probable. In this method, the optimistic exponential type of ordered weighted averaging (OWA) operator is applied to fuse the output of five recommender system strategies. Experiments using MovieLens dataset show the superiority of the proposed hybrid approach in the cold-start conditions.
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spelling doaj.art-2f131638ade842aaab55876c6cb736ab2023-02-08T07:30:01ZengIran Telecom Research CenterInternational Journal of Information and Communication Technology Research2251-61072783-44252010-12-01247987Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging OperatorJavad Basiri0Azadeh Shakery1Behzad Moshiri2Morteza Zihayat3 School of Electrical and Computer Engineering College of Engineering University of Tehran, Tehran, Iran School of Electrical and Computer Engineering University of Tehran Tehran, Iran Control & Intelligent Processing Center of Excellence, School of ECE University of Tehran Tehran, Iran School of Electrical and Computer Engineering University of Tehran Tehran, Iran Recommender systems have become significant tools in electronic commerce, proposing effectively those items that best meet the preferences of users. A variety of techniques have been proposed for the recommender systems such as, collaborative filtering and content-based filtering. This study proposes a new hybrid recommender system that focuses on improving the performance under the "new user cold-start" condition where existence of users with no ratings or with only a small number of ratings is probable. In this method, the optimistic exponential type of ordered weighted averaging (OWA) operator is applied to fuse the output of five recommender system strategies. Experiments using MovieLens dataset show the superiority of the proposed hybrid approach in the cold-start conditions.http://ijict.itrc.ac.ir/article-1-251-en.htmlowahybrid approachdemographic- informationcontent-based filteringcollaborative filteringrecommender system
spellingShingle Javad Basiri
Azadeh Shakery
Behzad Moshiri
Morteza Zihayat
Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
International Journal of Information and Communication Technology Research
owa
hybrid approach
demographic- information
content-based filtering
collaborative filtering
recommender system
title Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
title_full Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
title_fullStr Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
title_full_unstemmed Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
title_short Addressing the New User Cold-Start Problem in Recommender Systems Using Ordered Weighted Averaging Operator
title_sort addressing the new user cold start problem in recommender systems using ordered weighted averaging operator
topic owa
hybrid approach
demographic- information
content-based filtering
collaborative filtering
recommender system
url http://ijict.itrc.ac.ir/article-1-251-en.html
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AT mortezazihayat addressingthenewusercoldstartprobleminrecommendersystemsusingorderedweightedaveragingoperator