Search Results for author: Xiaoli Wei

Found 11 papers, 0 papers with code

Seismic First Break Picking in a Higher Dimension Using Deep Graph Learning

no code implementations12 Apr 2024 Hongtao Wang, Li Long, Jiangshe Zhang, Xiaoli Wei, Chunxia Zhang, Zhenbo Guo

Addressing this, we propose a novel approach using deep graph learning called DGL-FB, constructing a large graph to efficiently extract information.

Graph Learning

From Bandits Model to Deep Deterministic Policy Gradient, Reinforcement Learning with Contextual Information

no code implementations1 Oct 2023 Zhendong Shi, Xiaoli Wei, Ercan E. Kuruoglu

The problem of how to take the right actions to make profits in sequential process continues to be difficult due to the quick dynamics and a significant amount of uncertainty in many application scenarios.

Decision Making reinforcement-learning +2

Seismic Data Interpolation based on Denoising Diffusion Implicit Models with Resampling

no code implementations9 Jul 2023 Xiaoli Wei, Chunxia Zhang, Hongtao Wang, Chengli Tan, Deng Xiong, Baisong Jiang, Jiangshe Zhang, Sang-Woon Kim

The model training is established on the denoising diffusion probabilistic model, where U-Net is equipped with the multi-head self-attention to match the noise in each step.

Denoising Uncertainty Quantification

Continuous-time q-learning for mean-field control problems

no code implementations28 Jun 2023 Xiaoli Wei, Xiang Yu

This paper studies the q-learning, recently coined as the continuous time counterpart of Q-learning by Jia and Zhou (2023), for continuous time Mckean-Vlasov control problems in the setting of entropy-regularized reinforcement learning.

Q-Learning

MSSPN: Automatic First Arrival Picking using Multi-Stage Segmentation Picking Network

no code implementations7 Sep 2022 Hongtao Wang, Jiangshe Zhang, Xiaoli Wei, Chunxia Zhang, Zhenbo Guo, Li Long, Yicheng Wang

Besides, since the gather data is a set of signals which are greatly different from the natural images, it is difficult for the current method to solve the FAT picking problem in case of a low Signal to Noise Ratio (SNR).

Thompson Sampling on Asymmetric $α$-Stable Bandits

no code implementations19 Mar 2022 Zhendong Shi, Ercan E. Kuruoglu, Xiaoli Wei

In algorithm optimization in reinforcement learning, how to deal with the exploration-exploitation dilemma is particularly important.

reinforcement-learning Reinforcement Learning (RL) +1

MFFW: A new dataset for multi-focus image fusion

no code implementations12 Feb 2020 Shuang Xu, Xiaoli Wei, Chunxia Zhang, Junmin Liu, Jiangshe Zhang

It is found that current methods are evaluated on simulated image sets or Lytro dataset.

Mean-Field Controls with Q-learning for Cooperative MARL: Convergence and Complexity Analysis

no code implementations10 Feb 2020 Haotian Gu, Xin Guo, Xiaoli Wei, Renyuan Xu

Multi-agent reinforcement learning (MARL), despite its popularity and empirical success, suffers from the curse of dimensionality.

Multi-agent Reinforcement Learning Q-Learning

Portfolio diversification and model uncertainty: a robust dynamic mean-variance approach

no code implementations5 Sep 2018 Huyen Pham, Xiaoli Wei, Chao Zhou

The dynamic setting allows us to consider time varying ambiguity sets, which include the cases where the drift and correlation are estimated on a rolling window of historical data or when the investor takes into account learning on the ambiguity.

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