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Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions.
Yao-Chun Yang
Chiao-Ting Chen
Tzu-Yu Lu
Szu-Hao Huang
Published in:
IEEE Trans. Serv. Comput. (2023)
Keyphrases
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hierarchical reinforcement learning
knowledge base
knowledge representation
reasoning process
recommender systems
reinforcement learning
directed graph