Search Results for author: Conghui Tan

Found 6 papers, 2 papers with code

Barzilai-Borwein Step Size for Stochastic Gradient Descent

no code implementations NeurIPS 2016 Conghui Tan, Shiqian Ma, Yu-Hong Dai, Yuqiu Qian

One of the major issues in stochastic gradient descent (SGD) methods is how to choose an appropriate step size while running the algorithm.

Stochastic Optimization

Central Server Free Federated Learning over Single-sided Trust Social Networks

1 code implementation11 Oct 2019 Chaoyang He, Conghui Tan, Hanlin Tang, Shuang Qiu, Ji Liu

However, in many social network scenarios, centralized federated learning is not applicable (e. g., a central agent or server connecting all users may not exist, or the communication cost to the central server is not affordable).

Federated Learning

Accelerated Dual-Averaging Primal-Dual Method for Composite Convex Minimization

no code implementations15 Jan 2020 Conghui Tan, Yuqiu Qian, Shiqian Ma, Tong Zhang

Dual averaging-type methods are widely used in industrial machine learning applications due to their ability to promoting solution structure (e. g., sparsity) efficiently.

BIG-bench Machine Learning

Fast and Secure Distributed Nonnegative Matrix Factorization

1 code implementation7 Sep 2020 Yuqiu Qian, Conghui Tan, Danhao Ding, Hui Li, Nikos Mamoulis

Nonnegative matrix factorization (NMF) has been successfully applied in several data mining tasks.

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