Search Results for author: Xuyang Chen

Found 6 papers, 1 papers with code

Contrastive Learning of Shared Spatiotemporal EEG Representations Across Individuals for Naturalistic Neuroscience

no code implementations22 Feb 2024 Xinke Shen, Lingyi Tao, Xuyang Chen, Sen Song, Quanying Liu, Dan Zhang

Targeting the Electroencephalogram (EEG) technique, known for its rich spatial and temporal information, this study presents a general framework for Contrastive Learning of Shared SpatioTemporal EEG Representations across individuals (CL-SSTER).

Brain Decoding Contrastive Learning +1

Optimization Landscape of Policy Gradient Methods for Discrete-time Static Output Feedback

no code implementations29 Oct 2023 Jingliang Duan, Jie Li, Xuyang Chen, Kai Zhao, Shengbo Eben Li, Lin Zhao

Despite the absence of convexity, we leverage these properties to derive novel findings regarding convergence (and nearly dimension-free rate) to stationary points for three policy gradient methods, including the vanilla policy gradient method, the natural policy gradient method, and the Gauss-Newton method.

Policy Gradient Methods

Box2Poly: Memory-Efficient Polygon Prediction of Arbitrarily Shaped and Rotated Text

no code implementations20 Sep 2023 Xuyang Chen, Dong Wang, Konrad Schindler, Mingwei Sun, Yongliang Wang, Nicolo Savioli, Liqiu Meng

Recently, Transformer-based text detection techniques have sought to predict polygons by encoding the coordinates of individual boundary vertices using distinct query features.

regression Text Detection

Finite-time analysis of single-timescale actor-critic

no code implementations NeurIPS 2023 Xuyang Chen, Lin Zhao

We investigate the more practical online single-timescale actor-critic algorithm on continuous state space, where the critic assumes linear function approximation and updates with a single Markovian sample per actor step.

Global Convergence of Two-timescale Actor-Critic for Solving Linear Quadratic Regulator

no code implementations18 Aug 2022 Xuyang Chen, Jingliang Duan, Yingbin Liang, Lin Zhao

To our knowledge, this is the first finite-time convergence analysis for the single sample two-timescale AC for solving LQR with global optimality.

AXNet: ApproXimate computing using an end-to-end trainable neural network

2 code implementations27 Jul 2018 Zhenghao Peng, Xuyang Chen, Chengwen Xu, Naifeng Jing, Xiaoyao Liang, Cewu Lu, Li Jiang

To guarantee the approximation quality, existing works deploy two neural networks (NNs), e. g., an approximator and a predictor.

Multi-Task Learning Philosophy

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