no code implementations • 12 Apr 2024 • Jie Wang, Jun Ai, Minyan Lu, Haoran Su, Dan Yu, Yutao Zhang, Junda Zhu, Jingyu Liu
We investigate the perturbation metrics and range representations used to measure the degree of perturbations on images, as well as the robustness metrics specifically for the robustness conditions of classification models.
no code implementations • 27 Sep 2022 • Chenyu You, Weicheng Dai, Fenglin Liu, Yifei Min, Haoran Su, Xiaoran Zhang, Xiaoxiao Li, David A. Clifton, Lawrence Staib, James S. Duncan
Blindly leveraging all pixels in training hence can lead to the data imbalance issues, and cause deteriorated performance; (2) consistency: it remains unclear whether a segmentation model has learned meaningful and yet consistent anatomical features due to the intra-class variations between different anatomical features; and (3) diversity: the intra-slice correlations within the entire dataset have received significantly less attention.
no code implementations • 27 Jun 2022 • Haoran Su, Yaofeng D. Zhong, Joseph Y. J. Chow, Biswadip Dey, Li Jin
Emergency vehicles (EMVs) play a crucial role in responding to time-critical calls such as medical emergencies and fire outbreaks in urban areas.
Multi-agent Reinforcement Learning Reinforcement Learning (RL)
no code implementations • 30 Oct 2021 • Haoran Su, Yaofeng Desmond Zhong, Biswadip Dey, Amit Chakraborty
Consequently, the decentralized RL agents learn network-level cooperative traffic signal phase strategies that reduce EMV travel time and the average travel time of non-EMVs in the network.
no code implementations • 12 Sep 2021 • Haoran Su, Yaofeng Desmond Zhong, Biswadip Dey, Amit Chakraborty
EMVLight extends Dijkstra's algorithm to efficiently update the optimal route for the EMVs in real time as it travels through the traffic network.
no code implementations • 26 Mar 2021 • Haoran Su, Zhengjie Ji, Karl. H. Johansson, Li Jin
Platooning of connected and autonomous vehicles (CAVs) is an emerging technology with a strong potential for throughput improvement and fuel reduction.
no code implementations • 1 Aug 2020 • Haoran Su, Kejian Shi, Li Jin, Joseph Y. J. Chow
Emergency vehicle (EMV) service is a key function of cities and is exceedingly challenging due to urban traffic congestion.
no code implementations • 2 Mar 2020 • Haoran Su, Kejian Shi, Joseph. Y. J. Chow, Li Jin
Based on pairs of neural networks representing actors and critics for agent vehicles, we develop a multi-agent actor-critic deep reinforcement learning algorithm that handles a varying number of vehicles and a random proportion of connected vehicles in the traffic.