A critical study on data leakage in recommender system offline evaluation
Recommender models are hard to evaluate, particularly under offline setting. In this paper, we provide a comprehensive and critical analysis of the data leakage issue in recommender system offline evaluation. Data leakage is caused by not observing global timeline in evaluating recommenders, e.g....
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Main Authors: | Ji, Yitong, Sun, Aixin, Zhang, Jie, Li, Chenliang |
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Other Authors: | School of Computer Science and Engineering |
Format: | Article |
Language: | English |
Published: |
2023
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/170569 |
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Institution: | Nanyang Technological University |
Language: | English |
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