no code implementations • 16 Mar 2024 • Sourav Chakraborty, Lijun Chen
We consider two different non-stationary environments: abruptly-changing and continuously-changing, and propose respective incentivized exploration algorithms.
no code implementations • 3 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.
1 code implementation • 19 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.
no code implementations • 6 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).
1 code implementation • CVPR 2022 • Haisong Liu, Tao Lu, Yihui Xu, Jia Liu, Wenjie Li, Lijun Chen
In this paper, we study the problem of jointly estimating the optical flow and scene flow from synchronized 2D and 3D data.
Ranked #3 on Scene Flow Estimation on Spring
no code implementations • 3 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.
no code implementations • 16 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.
no code implementations • 21 Mar 2020 • Guohui Ding, Joewie J. Koh, Kelly Merckaert, Bram Vanderborght, Marco M. Nicotra, Christoffer Heckman, Alessandro Roncone, Lijun Chen
We consider solving a cooperative multi-robot object manipulation task using reinforcement learning (RL).
no code implementations • 12 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.
no code implementations • 30 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.
no code implementations • 4 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.