基于扩散的推荐算法的可预测性

Predictability of diffusion-based recommendation algorithm

推荐系统能够帮助解决信息过载问题,并可以根据用户的历史记录预测其兴趣进行推荐.推荐系统的核心是推荐算法,而提高最大推荐精度对进一步提升推荐算法精度至关重要.针对这一问题,提出了一个添加虚拟边的方法,通过增加推荐算法资源扩散的宽度使更多的商品可以获得资源,提高测试集内商品出现在推荐列表中的可能性,从而提高基于扩散的推荐算法的最大推荐精度.实验结果表明,本文方法提升了基于扩散的推荐算法的可预测性,同时也提升了推荐的准确性.

Recommendation system can help solve the problem of information overload,and can predict the interests of users according to their historical records for recommendation.The core of the recommendation system is recommendation algorithm,improving the maximum recommendation accuracy is very important for further improving the accuracy of the recommendation algorithm.In order to solve this problem,a method of adding virtual edges was proposed in this paper.By increasing the width of resource diffusion,more products could obtain resources,and the possibility of products in test set appearing in recommendation list was improved,so as to improve the maximum recommendation accuracy of the diffusion-based recommendation algorithm.Experimental results show that this method improves the predictability of the diffusion-based recommendation algorithm and the accuracy of recommendation.