Genetic algorithm and graph theory based matrix factorization method for online friend recommendation.
Genetic algorithm and graph theory based matrix factorization method for online friend recommendation.
复制标题
基于遗传算法和图论的矩阵分解方法的在线好友推荐
DOI:
10.1155/2014/162148
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发表时间:
2014
影响因子:
--
通讯作者:
Xu N
中科院分区:
文献类型:
--
作者:
Li Q;Yao M;Yang J;Xu N
Online friend recommendation is a fast developing topic in web mining. In this paper, we used SVD matrix factorization to model user and item feature vector and used stochastic gradient descent to amend parameter and improve accuracy. To tackle cold start problem and data sparsity, we used KNN model to influence user feature vector. At the same time, we used graph theory to partition communities with fairly low time and space complexity. What is more, matrix factorization can combine online and offline recommendation. Experiments showed that the hybrid recommendation algorithm is able to recommend online friends with good accuracy.
影响因子:
14.3
作者:
Deb, K;Pratap, A;Meyarivan, T
通讯作者:
Meyarivan, T
DOI:
10.1016/j.physa.2012.03.021
发表时间:
2012-08-01
影响因子:
3.3
作者:
Gong, Maoguo;Ma, Lijia;Jiao, Licheng
通讯作者:
Jiao, Licheng
影响因子:
14.3
作者:
Pizzuti, Clara
通讯作者:
Pizzuti, Clara