Search Results for author: Lizhang Chen

Found 3 papers, 0 papers with code

Communication Efficient Distributed Training with Distributed Lion

no code implementations30 Mar 2024 Bo Liu, Lemeng Wu, Lizhang Chen, Kaizhao Liang, Jiaxu Zhu, Chen Liang, Raghuraman Krishnamoorthi, Qiang Liu

The Lion optimizer has been a promising competitor with the AdamW for training large AI models, with advantages on memory, computation, and sample efficiency.

Lion Secretly Solves Constrained Optimization: As Lyapunov Predicts

no code implementations9 Oct 2023 Lizhang Chen, Bo Liu, Kaizhao Liang, Qiang Liu

As we can expect from the results of a random search program, Lion incorporates elements from several existing algorithms, including signed momentum, decoupled weight decay, Polak, and Nesterov momentum, but does not fit into any existing category of theoretically grounded optimizers.

An Experimental Study of Semantic Continuity for Deep Learning Models

no code implementations19 Nov 2020 Shangxi Wu, Jitao Sang, Xian Zhao, Lizhang Chen

Deep learning models suffer from the problem of semantic discontinuity: small perturbations in the input space tend to cause semantic-level interference to the model output.

Adversarial Robustness

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