Search Results for author: Yunfei Li

Found 12 papers, 3 papers with code

Variational Bayesian Learning based Joint Localization and Channel Estimation with Distance-dependent Noise

no code implementations6 Mar 2024 Yunfei Li, Yiting Luo, Weiqiang Tan, ChunGuo Li, Shaodan Ma, Guanghua Yang

In this study, we address a joint localization and channel estimation problem encompassing distance-dependent noise, unknown channel parameters, and uncertainties in sensor node locations.

Variational Bayesian Learning Based Localization and Channel Reconstruction in RIS-aided Systems

no code implementations2 Mar 2024 Yunfei Li, Yiting Luo, Xianda Wu, Zheng Shi, Shaodan Ma, Guanghua Yang

As opposed to existing works that treat channel estimation and localization independently, this paper exploits the intrinsic coupling and nonlinear relationships between the channel parameters and user location for enhancement of both localization and channel reconstruction.

Phasic Self-Imitative Reduction for Sparse-Reward Goal-Conditioned Reinforcement Learning

no code implementations24 Jun 2022 Yunfei Li, Tian Gao, Jiaqi Yang, Huazhe Xu, Yi Wu

It has been a recent trend to leverage the power of supervised learning (SL) towards more effective reinforcement learning (RL) methods.

reinforcement-learning Reinforcement Learning (RL)

Learning Design and Construction with Varying-Sized Materials via Prioritized Memory Resets

1 code implementation12 Apr 2022 Yunfei Li, Tao Kong, Lei LI, Yi Wu

Can a robot autonomously learn to design and construct a bridge from varying-sized blocks without a blueprint?

Motion Planning

A Benchmark for Low-Switching-Cost Reinforcement Learning

no code implementations13 Dec 2021 Shusheng Xu, Yancheng Liang, Yunfei Li, Simon Shaolei Du, Yi Wu

A ubiquitous requirement in many practical reinforcement learning (RL) applications, including medical treatment, recommendation system, education and robotics, is that the deployed policy that actually interacts with the environment cannot change frequently.

Atari Games reinforcement-learning +1

Learning to Design and Construct Bridge without Blueprint

no code implementations5 Aug 2021 Yunfei Li, Tao Kong, Lei LI, Yifeng Li, Yi Wu

In this task, the robot needs to first design a feasible bridge architecture for arbitrarily wide cliffs and then manipulate the blocks reliably to construct a stable bridge according to the proposed design.

Motion Planning

Solving Compositional Reinforcement Learning Problems via Task Reduction

1 code implementation ICLR 2021 Yunfei Li, Yilin Wu, Huazhe Xu, Xiaolong Wang, Yi Wu

We propose a novel learning paradigm, Self-Imitation via Reduction (SIR), for solving compositional reinforcement learning problems.

Continuous Control reinforcement-learning +1

D3PG: Deep Differentiable Deterministic Policy Gradients

no code implementations25 Sep 2019 Tao Du, Yunfei Li, Jie Xu, Andrew Spielberg, Kui Wu, Daniela Rus, Wojciech Matusik

Over the last decade, two competing control strategies have emerged for solving complex control tasks with high efficacy.

Model Predictive Control

Pretrain Soft Q-Learning with Imperfect Demonstrations

no code implementations9 May 2019 Xiaoqin Zhang, Yunfei Li, Huimin Ma, Xiong Luo

Pretraining reinforcement learning methods with demonstrations has been an important concept in the study of reinforcement learning since a large amount of computing power is spent on online simulations with existing reinforcement learning algorithms.

Q-Learning reinforcement-learning +1

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