  Digital human recommendation system has been developed to help customers find
their favorite products and is playing an active role in various recommendation
contexts. How to timely catch and learn the dynamics of the preferences of the
customers, while meeting their exact requirements, becomes crucial in the
digital human recommendation domain. We design a novel practical digital human
interactive recommendation agent framework based on Reinforcement Learning(RL)
to improve the efficiency of the interactive recommendation decision-making by
leveraging both the digital human features and the superior flexibility of RL.
Our proposed framework learns through real-time interactions between the
digital human and customers dynamically through the state-of-art RL algorithms,
combined with multimodal embedding and graph embedding, to improve the accuracy
of personalization and thus enable the digital human agent to timely catch the
attention of the customer. Experiments on real business data demonstrate that
our framework can provide better personalized customer engagement and better
customer experiences.

Information Retrieval;Artificial Intelligence;Machine Learning