作者
Xin Luo, Yue Zhou, Zhigang Liu, Lun Hu, MengChu Zhou
发表日期
2021/4/6
期刊
IEEE Transactions on Services Computing
卷号
15
期号
5
页码范围
2809-2823
出版商
IEEE
简介
A non-negative latent factor (NLF) model with a single latent factor-dependent, non-negative and multiplicative update (SLF-NMU) algorithm is frequently adopted to extract useful knowledge from non-negative data represented by high-dimensional and sparse (HiDS) matrices arising from various service-oriented applications. However, its convergence rate is slow. To address this issue, this study proposes a G eneralized Nesterov's acceleration-incorporated, N on-negative and A daptive L atent F actor (GNALF) model. It results from a) incorporating a generalized Nesterov's accelerated gradient (NAG) method into an SLF-NMU algorithm, thereby achieving an N AG-incorporated and e lement-oriented n on-negative (NEN) algorithm to perform efficient parameter update; and b) making its regularization and acceleration parameters self-adaptive via incorporating the principle of a particle swarm optimization …
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