Search Results for author: Lijun Chen

Found 11 papers, 2 papers with code

Incentivized Exploration of Non-Stationary Stochastic Bandits

no code implementations16 Mar 2024 Sourav Chakraborty, Lijun Chen

We consider two different non-stationary environments: abruptly-changing and continuously-changing, and propose respective incentivized exploration algorithms.

NeuV-SLAM: Fast Neural Multiresolution Voxel Optimization for RGBD Dense SLAM

no code implementations3 Feb 2024 Wenzhi Guo, Bing Wang, Lijun Chen

We introduce NeuV-SLAM, a novel dense simultaneous localization and mapping pipeline based on neural multiresolution voxels, characterized by ultra-fast convergence and incremental expansion capabilities.

Simultaneous Localization and Mapping

Unsupervised Deep Cross-Language Entity Alignment

1 code implementation19 Sep 2023 Chuanyu Jiang, Yiming Qian, Lijun Chen, Yang Gu, Xia Xie

We outperformed the state-of-the-art method in unsupervised and semi-supervised categories.

Entity Alignment Knowledge Graphs

Atrial Septal Defect Detection in Children Based on Ultrasound Video Using Multiple Instances Learning

no code implementations6 Jun 2023 Yiman Liu, Qiming Huang, Xiaoxiang Han, Tongtong Liang, Zhifang Zhang, Lijun Chen, Jinfeng Wang, Angelos Stefanidis, Jionglong Su, Jiangang Chen, Qingli Li, Yuqi Zhang

In addition, data from 30 children patients (15 positives and 15 negatives) are collected for clinician testing and compared to our model test results (these 30 samples do not participate in model training).

Defect Detection Specificity

Cooperative Control of Mobile Robots with Stackelberg Learning

no code implementations3 Aug 2020 Joewie J. Koh, Guohui Ding, Christoffer Heckman, Lijun Chen, Alessandro Roncone

Multi-robot cooperation requires agents to make decisions that are consistent with the shared goal without disregarding action-specific preferences that might arise from asymmetry in capabilities and individual objectives.

Q-Learning reinforcement-learning +1

A Smoothed Analysis of Online Lasso for the Sparse Linear Contextual Bandit Problem

no code implementations16 Jul 2020 Zhiyuan Liu, Huazheng Wang, Bo Waggoner, Youjian, Liu, Lijun Chen

We investigate the sparse linear contextual bandit problem where the parameter $\theta$ is sparse.

Incentivized Exploration for Multi-Armed Bandits under Reward Drift

no code implementations12 Nov 2019 Zhiyuan Liu, Huazheng Wang, Fan Shen, Kai Liu, Lijun Chen

We study incentivized exploration for the multi-armed bandit (MAB) problem where the players receive compensation for exploring arms other than the greedy choice and may provide biased feedback on reward.

Multi-Armed Bandits Thompson Sampling

Towards Scalable Koopman Operator Learning: Convergence Rates and A Distributed Learning Algorithm

no code implementations30 Sep 2019 Zhiyuan Liu, Guohui Ding, Lijun Chen, Enoch Yeung

We propose an alternating optimization algorithm to the nonconvex Koopman operator learning problem for nonlinear dynamic systems.

Operator learning

Decomposition of Nonlinear Dynamical Systems Using Koopman Gramians

no code implementations4 Oct 2017 Zhiyuan Liu, Soumya Kundu, Lijun Chen, Enoch Yeung

In this paper we propose a new Koopman operator approach to the decomposition of nonlinear dynamical systems using Koopman Gramians.

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