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- W4200630887 abstract "Conversational recommender systems offer the promise of interactive, engaging ways for users to find items they enjoy. We seek to improve conversational recommendation via three dimensions: 1) We aim to mimic a common mode of human interaction for recommendation: experts justify their suggestions, a seeker explains why they don't like the item, and both parties iterate through the dialog to find a suitable item. 2) We leverage ideas from conversational critiquing to allow users to flexibly interact with natural language justifications by critiquing subjective aspects. 3) We adapt conversational recommendation to a wider range of domains where crowd-sourced ground truth dialogs are not available. We develop a new two-part framework for training conversational recommender systems. First, we train a recommender system to jointly suggest items and justify its reasoning with subjective aspects. We then fine-tune this model to incorporate iterative user feedback via self-supervised bot-play. Experiments on three real-world datasets demonstrate that our system can be applied to different recommendation models across diverse domains to achieve superior performance in conversational recommendation compared to state-of-the-art methods. We also evaluate our model on human users, showing that systems trained under our framework provide more useful, helpful, and knowledgeable recommendations in warm- and cold-start settings." @default.
- W4200630887 created "2021-12-31" @default.
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- W4200630887 date "2021-12-09" @default.
- W4200630887 modified "2023-09-23" @default.
- W4200630887 title "Self-Supervised Bot Play for Conversational Recommendation with Justifications" @default.
- W4200630887 doi "https://doi.org/10.48550/arxiv.2112.05197" @default.
- W4200630887 hasPublicationYear "2021" @default.
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