Search Results for author: Yiwen Lu

Found 12 papers, 3 papers with code

Learning-Based Efficient Approximation of Data-enabled Predictive Control

no code implementations25 Apr 2024 Yihan Zhou, Yiwen Lu, Zishuo Li, Jiaqi Yan, Yilin Mo

However, the size of the optimization problem in DeePC grows linearly with respect to the data size, which prohibits its application due to high computational costs.

FlashSpeech: Efficient Zero-Shot Speech Synthesis

no code implementations23 Apr 2024 Zhen Ye, Zeqian Ju, Haohe Liu, Xu Tan, Jianyi Chen, Yiwen Lu, Peiwen Sun, Jiahao Pan, Weizhen Bian, Shulin He, Qifeng Liu, Yike Guo, Wei Xue

The generation processes of FlashSpeech can be achieved efficiently with one or two sampling steps while maintaining high audio quality and high similarity to the audio prompt for zero-shot speech generation.

Speech Synthesis Voice Conversion

CoMoSVC: Consistency Model-based Singing Voice Conversion

no code implementations3 Jan 2024 Yiwen Lu, Zhen Ye, Wei Xue, Xu Tan, Qifeng Liu, Yike Guo

The diffusion-based Singing Voice Conversion (SVC) methods have achieved remarkable performances, producing natural audios with high similarity to the target timbre.

Voice Conversion

MPC-Inspired Reinforcement Learning for Verifiable Model-Free Control

1 code implementation8 Dec 2023 Yiwen Lu, Zishuo Li, Yihan Zhou, Na Li, Yilin Mo

In this paper, we introduce a new class of parameterized controllers, drawing inspiration from Model Predictive Control (MPC).

Model Predictive Control reinforcement-learning

Boosting Spectral Clustering on Incomplete Data via Kernel Correction and Affinity Learning

1 code implementation 37th Conference on Neural Information Processing Systems (NeurIPS 2023) 2023 Fangchen Yu, Runze Zhao, Zhan Shi, Yiwen Lu, Jicong Fan, Yicheng Zeng, Jianfeng Mao, Wenye Li

Secondly, we develop a series of affinity learning methods that equip the selfexpressive framework with ℓp-norm to construct an intrinsic affinity matrix with an adaptive extension.

Clustering Imputation

Generalized Activation via Multivariate Projection

1 code implementation29 Sep 2023 Jiayun Li, Yuxiao Cheng, Yiwen Lu, Zhuofan Xia, Yilin Mo, Gao Huang

Activation functions are essential to introduce nonlinearity into neural networks, with the Rectified Linear Unit (ReLU) often favored for its simplicity and effectiveness.

Almost Surely $\sqrt{T}$ Regret Bound for Adaptive LQR

no code implementations13 Jan 2023 Yiwen Lu, Yilin Mo

The Linear-Quadratic Regulation (LQR) problem with unknown system parameters has been widely studied, but it has remained unclear whether $\tilde{ \mathcal{O}}(\sqrt{T})$ regret, which is the best known dependence on time, can be achieved almost surely.

Safe and Efficient Switching Controller Design for Partially Observed Linear-Gaussian Systems

no code implementations8 Dec 2022 Yiwen Lu, Yilin Mo

Switching control strategies that unite a potentially high-performance but uncertified controller and a stabilizing albeit conservative controller are shown to be able to balance safety with efficiency, but have been less studied under partial observation of state.

Safe and Efficient Switching Mechanism Design for Uncertified Linear Controller

no code implementations26 Oct 2022 Yiwen Lu, Yilin Mo

We show that the switching strategy is both safe and efficient, in the sense that: 1) the linear-quadratic cost of the system is always bounded even if original uncertified controller is destabilizing; 2) in case the uncertified controller is stabilizing, the performance loss caused by switching converges super-exponentially to $0$ for Gaussian noise, while the converging polynomially for general heavy-tailed noise.

Ensuring the Safety of Uncertified Linear State-Feedback Controllers via Switching

no code implementations18 May 2022 Yiwen Lu, Yilin Mo

Sustained research efforts have been devoted to learning optimal controllers for linear stochastic dynamical systems with unknown parameters, but due to the corruption of noise, learned controllers are usually uncertified in the sense that they may destabilize the system.

Safe Linear-Quadratic Dual Control with Almost Sure Performance Guarantee

no code implementations24 Mar 2021 Yiwen Lu, Yilin Mo

This paper considers the linear-quadratic dual control problem where the system parameters need to be identified and the control objective needs to be optimized in the meantime.

Modeling the Interaction between Agents in Cooperative Multi-Agent Reinforcement Learning

no code implementations10 Feb 2021 Xiaoteng Ma, Yiqin Yang, Chenghao Li, Yiwen Lu, Qianchuan Zhao, Yang Jun

Value-based methods of multi-agent reinforcement learning (MARL), especially the value decomposition methods, have been demonstrated on a range of challenging cooperative tasks.

Continuous Control Multi-agent Reinforcement Learning +2

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