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Slate-Aware Ranking for Recommendation

Published: 27 February 2023 Publication History

Abstract

We see widespread adoption of slate recommender systems, where an ordered item list is fed to the user based on the user interests and items' content. For each recommendation, the user can select one or several items from the list for further interaction. In this setting, the significant impact on user behaviors from the mutual influence among the items is well understood. The existing methods add another step of slate re-ranking after the ranking stage of recommender systems, which considers the mutual influence among recommended items to re-rank and generate the recommendation results so as to maximize the expected overall utility. However, to model the complex interaction of multiple recommended items, the re-ranking stage usually can just handle dozens of candidates because of the constraint of limited hardware resource and system latency. Therefore, the ranking stage is still essential for most applications to provide high-quality candidate set for the re-ranking stage. In this paper, we propose a solution named Slate-Aware ranking (SAR ) for the ranking stage. By implicitly considering the relations among the slate items, it significantly enhances the quality of the re-ranking stage's candidate set and boosts the relevance and diversity of the overall recommender systems. Both experiments with the public datasets and internal online A/B testing are conducted to verify its effectiveness.

Supplementary Material

MP4 File (WSDM23-fp90.mp4)
presentation video for "slate aware ranking for recommendation"-final version-2

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Cited By

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  • (2024)Utility-Oriented Reranking with Counterfactual ContextACM Transactions on Knowledge Discovery from Data10.1145/367100418:8(1-22)Online publication date: 4-Jun-2024
  • (2024)SM-RS: Single- and Multi-Objective Recommendations with Contextual Impressions and Beyond-Accuracy Propensity ScoresProceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval10.1145/3626772.3657863(988-995)Online publication date: 10-Jul-2024

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cover image ACM Conferences
WSDM '23: Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining
February 2023
1345 pages
ISBN:9781450394079
DOI:10.1145/3539597
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Published: 27 February 2023

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Author Tags

  1. distillation
  2. multi-task learning
  3. privileged information
  4. ranking
  5. re-ranking
  6. recommender systems
  7. slate recommendation

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View all
  • (2024)Utility-Oriented Reranking with Counterfactual ContextACM Transactions on Knowledge Discovery from Data10.1145/367100418:8(1-22)Online publication date: 4-Jun-2024
  • (2024)SM-RS: Single- and Multi-Objective Recommendations with Contextual Impressions and Beyond-Accuracy Propensity ScoresProceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval10.1145/3626772.3657863(988-995)Online publication date: 10-Jul-2024

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