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| Short Video User Behavior Prediction Algorithm Based on Multi-task and User Interest |
| GU Yirana,b, XU Zebina, YANG Haigenc
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| a. College of Automation & College of Artificial Intelligence; b. Center of Smart Campus Research; c. Center of Wider and Wireless Communication Technology, Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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Abstract The user behavior of short video (such as viewing comments, likes, clicking on avatars, and forwarding) is predicted by considering the change of user interests. In this paper, the sorted user historical behavior sequence is introduced into word2vec as a corpus to train the word embedding model, learn the dynamic interests of users, and effectively capture the changes in user interests. The statistical features constructed by feature engineering and the user dynamic interest features constructed by the word embedding model are input into the multi task learning with multi gate mixture of experts (MMOE), and a new evaluation index W-uAUCis proposed to evaluate the prediction accuracy of the model. The experimental results show that compared with shared bottom, wide & deep and deepfm, the proposed MMOE model considering the change of user interest has the best prediction accuracy.
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Received: 11 March 2022
Published: 28 December 2023
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