no code implementations • 7 Sep 2024 • Thomas Yu CHow Tam, Litian Liang, Ke Chen, Haohan Wang, Wei Wu
To bridge such gap, in this study, we developed a quantitative disease-focusing strategy to first enhance the interpretability of DL models using saliency maps and brain segmentations; then we propose a disease-focus (DF) score that quantifies how much a DL model focuses on brain areas relevant to AD pathology based on clinically known MRI-based pathological regions of AD.
no code implementations • 9 Dec 2023 • Litian Liang, Liuyu Bian, Caiwei Xiao, Jialin Zhang, Linghao Chen, Isabella Liu, Fanbo Xiang, Zhiao Huang, Hao Su
Building robots that can automate labor-intensive tasks has long been the core motivation behind the advancements in computer vision and the robotics community.
no code implementations • 20 Jul 2023 • Zhiao Huang, Litian Liang, Zhan Ling, Xuanlin Li, Chuang Gan, Hao Su
We then present a practical model-based RL method, called Reparameterized Policy Gradient (RPG), which leverages the multimodal policy parameterization and learned world model to achieve strong exploration capabilities and high data efficiency.
no code implementations • CVPR 2023 • Xiang Li, Xuelin Qian, Litian Liang, Lingjie Kong, Qiaole Dong, Jiejun Chen, Dingxia Liu, Xiuzhong Yao, Yanwei Fu
Particularly, we build a causal graph, and train the images to estimate the intraoperative attributes for final OS prediction.
1 code implementation • 16 Sep 2022 • Litian Liang, Yaosheng Xu, Stephen Mcaleer, Dailin Hu, Alexander Ihler, Pieter Abbeel, Roy Fox
On a set of 26 benchmark Atari environments, MeanQ outperforms all tested baselines, including the best available baseline, SUNRISE, at 100K interaction steps in 16/26 environments, and by 68% on average.
no code implementations • 6 Dec 2021 • Yaosheng Xu, Dailin Hu, Litian Liang, Stephen Mcaleer, Pieter Abbeel, Roy Fox
Soft Actor-Critic (SAC) is considered the state-of-the-art algorithm in continuous action space settings.
no code implementations • 28 Oct 2021 • Litian Liang, Yaosheng Xu, Stephen Mcaleer, Dailin Hu, Alexander Ihler, Pieter Abbeel, Roy Fox
Under the belief that $\beta$ is closely related to the (state dependent) model uncertainty, Entropy Regularized Q-Learning (EQL) further introduces a principled scheduling of $\beta$ by maintaining a collection of the model parameters that characterizes model uncertainty.
no code implementations • 5 Sep 2021 • Kolby Nottingham, Litian Liang, Daeyun Shin, Charless C. Fowlkes, Roy Fox, Sameer Singh
Natural language instruction following tasks serve as a valuable test-bed for grounded language and robotics research.