Zichen Zhang

Ph.D. Candidate at University of Alberta

Email: vincent.zhang at ualberta.ca
Resume • Google Scholar • Github • Linkedin • Blog

About Me

Selected Projects and Publications

* denotes equal contribution
Managing Temporal Resolution in Continuous Value Estimation: A Fundamental Trade-off. [pdf]
Zichen Zhang*, Francesco Zanini*, Junxi Zhang*, Alex Ayoub*, Johannes Kirschner*, Masood Dehghan*, Dale Schuurmans*
NeurIPS 2023
  • Analyzed the impact of time discretization in policy evaluation for continuous-time stochastic LQR
  • Uncovered a fundamental trade-off between approximation and statistical error in value estimation
  • Demonstrated the trade-off in MuJoCo
A Simple Decentralized Cross-Entropy Method [pdf] [code]
Zichen Zhang, Jun Jin, Martin Jagersand, Jun Luo*, Dale Schuurmans*
NeurIPS 2022
Generalized the Cross-Entropy Method to increase sample efficiency in continuous-action planning
Learning State Conditioned Linear Mappings for Low-Dimensional Control of Robotic Manipulators [IEEE link]
Michael Przystupa*, Kerrick Johnstonbaugh*, Zichen Zhang, Laura Petrich, Masood Dehghan, Faezeh Haghverd, Martin Jagersand
IROS 2023
Reducing Selection Bias in Counterfactual Reasoning for Individual Treatment Effects Estimation [pdf]
Zichen Zhang, Qingfeng Lan, Lei Ding, Yue Wang, Negar Hassanpour, Russell Greiner.
Poster Spotlight @ NeurIPS 2019 CausalML Workshop.
U^2-Net: Going Deeper with Nested U-Structure for Salient Object Detection [pdf][code]
Xuebin Qin, Zichen Zhang, Chenyang Huang, Masood Dehghan, Osmar R. Zaiane, Martin Jagersand
Pattern Recognition 2020.
BASNet: Boundary-Aware Salient Object Detection [pdf][supp][code]
Xuebin Qin, Zichen Zhang, Chenyang Huang, Chao Gao, Masood Dehghan, Martin Jagersand
CVPR 2019.
Online Tool and Task learning via Human Robot Interaction [pdf]
Masood Dehghan∗, Zichen Zhang∗, Mennatullah Siam∗, Jun Jin, Laura Petrich and Martin Jagersand
ICRA 2019.
Among top five finalists in KUKA Innovation Award 2018 world final in Hannover, Germany
End-to-end detection-segmentation network with ROI convolution [pdf][code]
Zichen Zhang, Min Tang, Dana Cobzas, Dornoosh Zonoobi, Martin Jagersand, Jacob L. Jaremko
ISBI 2018
Segmentation-by-Detection: A Cascade Network for Volumetric Medical Image Segmentation [pdf]
Min Tang, Zichen Zhang, Dana Cobzas, Martin Jagersand, Jacob L. Jaremko
ISBI 2018
A Deep Level Set Method for Image Segmentation [pdf]
Min Tang, Sepehr Valipour, Zichen Zhang, Dana Cobzas, Martin Jagersand
MICCAI workshop 2017
Uncalibrated Visual Servoing
Uncalibrated visual servoing using a 4-DOF robotic arm: Barrett WAM. The target is specified on the images which is then directly used for inverse kinematics.
Grasp Planning of 3D Objects Using Genetic Algorithm [pdf]
Zichen Zhang , Jason Gu, Jun Luo
Industrial Electronics (ISIE), 2013

Service

Honors & Awards