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Online Publication Recommendation Based on Weighted Features of User Multiple Interest Drift |
Qian Cong1,2,Qi Jianglei1,Ding Hao1() |
1School of Information Management, Nanjing University, Nanjing 210023, China 2Department of Chinese Language and Literature, Hetao University, Bayannur 015000, China |
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Abstract [Objective] This paper improves the Reinforced Latent Factor Model with user multi-adaptive preference feature temporal weighting, aiming to improve the accuracy of recommendations. [Methods] Building upon the Temporal Potential Factor Model, we further integrated user preferences from different periods, such as interest forgetting features, publication interest overlap, and semantic similarity of comments. The user rating matrix is weighted and decomposed based on preference weights to capture the multiple preference changes of users towards different publications at different times. [Results] We conducted comparison experiments with four baseline methods based on temporal matrix factorization with three datasets. The proposed model’s precision was 9.26% higher than TDMF, 17.35% higher than TMRevCo, 38.63% higher than BPTF, and 26.24% higher than TCMF. This demonstrates that the proposed model is more accurate in extracting user temporal features. [Limitations] The analysis of interest drift evolution depends on historical user data. When the data is too sparse, alternative user information is required for a cold start. [Conclusions] The proposed model considers user forgetting and comment evolution features, effectively capturing user temporal interest drift and reflecting the evolving relationship of users’ interest in publications. It improves the accuracy of recommendations.
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Received: 01 August 2022
Published: 08 October 2023
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Fund:National Social Science Fund of China(20&ZD154);Key Project of the Open Project of the Yellow River Several Character Bend Cultural Innovation Research Base(JZW2022001);Postgraduate Research & Practice Innovation Program of Jiangsu Province(KYCX22_0074) |
Corresponding Authors:
Ding Hao,ORCID:0000-0003-3528-5686, E-mail: dinghao@smail.nju.edu.cn。
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