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Multi-Type Context-Aware Conversational Recommender Systems via Mixture-of-Experts

Created by
  • Haebom

Author

Jie Zou, Cheng Lin, Weikang Guo, Zheng Wang, Jiwei Wei, Yang Yang, Heng Tao Shen

Outline

This paper proposes a multi-type context-aware conversational recommender system (MCCRS) that effectively integrates various types of contextual information to improve the performance of conversational recommender systems. MCCRS integrates both structured and unstructured information, including structured knowledge graphs, unstructured conversation transcripts, and unstructured product reviews. Each expert specializes in a specific contextual information (structured knowledge graphs, conversation transcripts, and product reviews), and ChairBot coordinates multiple experts to produce the final result. Experimental results demonstrate that MCCRS significantly outperforms existing baseline models.

Takeaways, Limitations

Takeaways:
We present a novel interactive recommendation system architecture that effectively integrates various types of contextual information (structured and unstructured).
Overcoming the limitations of contextual information utilization using expert systems and ChairBot.
Experimentally verified performance improvement compared to existing models
Limitations:
Lack of detailed explanation of ChairBot's decision-making process
Lack of specific strategies for adjusting the weights of different types of contextual information.
Further research is needed to determine generalizability to specific domains.
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