Preference Elicitation with Soft Attributes in Interactive Recommendation

• URL: http://arxiv.org/abs/2311.02085v1
• Date: Sun, 22 Oct 2023 17:23:20 GMT
• Title: Preference Elicitation with Soft Attributes in Interactive Recommendation
• Authors: Erdem Biyik and Fan Yao and Yinlam Chow and Alex Haig and Chih-wei Hsu and Mohammad Ghavamzadeh and Craig Boutilier
• Abstract summary: We develop novel preference elicitation methods that can accommodate soft attributes and bring together item and attribute-based preference elicitation. Our techniques query users using both items and soft attributes to update the recommender system's belief about their preferences to improve recommendation quality.
• Score: 39.74528988497788
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Preference elicitation plays a central role in interactive recommender systems. Most preference elicitation approaches use either item queries that ask users to select preferred items from a slate, or attribute queries that ask them to express their preferences for item characteristics. Unfortunately, users often wish to describe their preferences using soft attributes for which no ground-truth semantics is given. Leveraging concept activation vectors for soft attribute semantics, we develop novel preference elicitation methods that can accommodate soft attributes and bring together both item and attribute-based preference elicitation. Our techniques query users using both items and soft attributes to update the recommender system's belief about their preferences to improve recommendation quality. We demonstrate the effectiveness of our methods vis-a-vis competing approaches on both synthetic and real-world datasets.

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