Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김상욱 | - |
dc.date.accessioned | 2020-04-23T05:48:29Z | - |
dc.date.available | 2020-04-23T05:48:29Z | - |
dc.date.issued | 2019-05 | - |
dc.identifier.citation | IEEE ACCESS, v. 7, Page. 62115-62125 | en_US |
dc.identifier.issn | 2169-3536 | - |
dc.identifier.uri | https://ieeexplore.ieee.org/document/8704936/ | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/151226 | - |
dc.description.abstract | Giving or recommending appropriate content based on the quality of experience is the most important and challenging issue in recommender systems. As collaborative filtering (CF) is one of the most prominent and popular techniques used for recommender systems, we propose a new clustering-based CF (CBCF) method using an incentivized/penalized user (IPU) model only with the ratings given by users, which is thus easy to implement. We aim to design such a simple clustering-based approach with no further prior information while improving the recommendation accuracy. To be precise, the purpose of CBCF with the IPU model is to improve recommendation performance such as precision, recall, and F-1 score by carefully exploiting different preferences among users. Specifically, we formulate a constrained optimization problem in which we aim to maximize the recall (or equivalently F-1 score) for a given precision. To this end, users are divided into several clusters based on the actual rating data and Pearson correlation coefficient. Afterward, we give each item an incentive/penalty according to the preference tendency by users within the same cluster. Our experimental results show a significant performance improvement over the baseline CF scheme without clustering in terms of recall or F-1 score for a given precision. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) through the Basic Science Research Program, Ministry of Education, under Grant 2017RID1A1A090 00835, and Ministry of Science and ICT, under Grant NRF-2017R1A2B3004581. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | en_US |
dc.subject | Clustering | en_US |
dc.subject | collaborative filtering | en_US |
dc.subject | F-1 score | en_US |
dc.subject | incentivized/penalized user model | en_US |
dc.subject | Pearson correlation coefficient | en_US |
dc.subject | recommender system | en_US |
dc.title | Clustering-Based Collaborative Filtering Using an Incentivized/Penalized User Model | en_US |
dc.type | Article | en_US |
dc.relation.volume | 7 | - |
dc.identifier.doi | 10.1109/ACCESS.2019.2914556 | - |
dc.relation.page | 62115-62125 | - |
dc.relation.journal | IEEE ACCESS | - |
dc.contributor.googleauthor | Tran, Cong | - |
dc.contributor.googleauthor | Kim, Jang-Young | - |
dc.contributor.googleauthor | Shin, Won-Yong | - |
dc.contributor.googleauthor | Kim, Sang-Wook | - |
dc.relation.code | 2019036307 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF COMPUTER SCIENCE | - |
dc.identifier.pid | wook | - |
dc.identifier.orcid | https://orcid.org/0000-0002-6345-9084 | - |
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