no code implementations • 15 Apr 2017 • Jie Zhong, Yijun Huang, Ji Liu
This paper proposes an asynchronous parallel thresholding algorithm and its parameter-free version to improve the efficiency and the applicability.
no code implementations • CVPR 2016 • Haichuan Yang, Yijun Huang, Lam Tran, Ji Liu, Shuai Huang
In this paper, we proposed a general bilevel exclusive sparsity formulation to pursue the diversity by restricting the overall sparsity and the sparsity in each group.
no code implementations • 27 Oct 2015 • Yijun Huang, Ji Liu
To the best of our knowledge, this is the first time to guarantee such convergence rate for the general exclusive sparsity norm minimization; 2) When the group information is unavailable to define the exclusive sparsity norm, we propose to use the random grouping scheme to construct groups and prove that if the number of groups is appropriately chosen, the nonzeros (true features) would be grouped in the ideal way with high probability.
no code implementations • NeurIPS 2015 • Xiangru Lian, Yijun Huang, Yuncheng Li, Ji Liu
Asynchronous parallel implementations of stochastic gradient (SG) have been broadly used in solving deep neural network and received many successes in practice recently.