PTR-PPO: Proximal Policy Optimization with Prioritized Trajectory Replay

no code implementations • 7 Dec 2021 • Xingxing Liang, Yang Ma, Yanghe Feng, Zhong Liu

In addition, by analyzing the heatmap of priority changes at various locations in the priority memory during training, we find that memory size and rollout length can have a significant impact on the distribution of trajectory priorities and, hence, on the performance of the algorithm.

Multiple Sclerosis Lesion Analysis in Brain Magnetic Resonance Images: Techniques and Clinical Applications

no code implementations • 20 Apr 2021 • Yang Ma, Chaoyi Zhang, Mariano Cabezas, Yang song, Zihao Tang, Dongnan Liu, Weidong Cai, Michael Barnett, Chenyu Wang

Further, we review technical strategies, such as domain adaptation, to enhance MS lesion segmentation in real-world clinical settings.

Domain Adaptation Lesion Segmentation +2

Superconductor-metal quantum transition at the EuO-KTaO3 interface

no code implementations • 23 Oct 2020 • Yang Ma, Jiasen Niu, Wenyu Xing, Yunyan Yao, Ranran Cai, Jirong Sun, X. C. Xie, Xi Lin, Wei Han

Superconductivity has been one of the most fascinating quantum states of matter for over several decades.

Superconductivity Mesoscale and Nanoscale Physics Materials Science