基于访问序列的新闻推荐深度学习模型
首发时间:2021-07-14
摘要:近年来,随着用户的偏好和新闻特征的快速变化,个性化新闻推荐系统面临着很大的挑战。为了提高推荐系统的性能,基于深度学习的新闻推荐系统模型已经有了快速的发展。但是,它依旧存在一些问题。第一,模型具有低效的采样率并且难以设计出好的收益函数;第二,在深度学习模型中,很少会考虑到用户访问序列。这些问题使得推荐性能很低。在本篇中,将深度学习与用户访问序列因子相结合,重新设计待推荐项目计算的评分标准。此外,本篇整合大众偏好来解决用户访问序列稀疏性问题。最后在NewsREEL平台提供的数据集和从网易新闻爬虫获取的数据集上进行了实验,实验结果表明本篇提出的模型能够有效提高推荐系统的性能。?
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Based on access sequence for deep learning model of news recommendation
Abstract:In recent years, personalized news recommendation is an extremely challenging problem because of the rapid changes in user preferences and news characteristics. In order to generate recommendation better, the news recommendation system based on the deep reinforcement learning model has been rapidly developed. But deep reinforcement learning models still have some problems. First, it has inefficient sampling efficiency and is very hard to design a good reward function. Second, few models consider the user access sequence in news recommendation systems based on deep reinforcement learning model. These problems make the recommendation efficiency poor. In this paper,deep learning and user access sequence factor are combined to redesign the scoring standard of the items to be recommended. Moreover, this paper incorporate the public\'s preference for users with sparse access sequences. Finally, this paper has conducted experiments on some datasets provided by the NewsREEL platform and extracted from NetEase News. The results demonstrate that our proposed model can effectively improve the quality of the recommendation.
Keywords: news recommendation deep learning access sequence
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