Search Results for author: Zixu Zhang

Found 7 papers, 1 papers with code

Blending Data-Driven Priors in Dynamic Games

no code implementations21 Feb 2024 Justin Lidard, Haimin Hu, Asher Hancock, Zixu Zhang, Albert Gimó Contreras, Vikash Modi, Jonathan DeCastro, Deepak Gopinath, Guy Rosman, Naomi Leonard, María Santos, Jaime Fernández Fisac

As intelligent robots like autonomous vehicles become increasingly deployed in the presence of people, the extent to which these systems should leverage model-based game-theoretic planners versus data-driven policies for safe, interaction-aware motion planning remains an open question.

Autonomous Driving Motion Planning

Who Plays First? Optimizing the Order of Play in Stackelberg Games with Many Robots

no code implementations14 Feb 2024 Haimin Hu, Gabriele Dragotto, Zixu Zhang, Kaiqu Liang, Bartolomeo Stellato, Jaime F. Fisac

To solve the problem, we introduce Branch and Play (B&P), an efficient and exact algorithm that provably converges to a socially optimal order of play and its Stackelberg equilibrium.

Trajectory Planning valid

Introspective Planning: Guiding Language-Enabled Agents to Refine Their Own Uncertainty

no code implementations9 Feb 2024 Kaiqu Liang, Zixu Zhang, Jaime Fernández Fisac

Large language models (LLMs) exhibit advanced reasoning skills, enabling robots to comprehend natural language instructions and strategically plan high-level actions through proper grounding.

Conformal Prediction Hallucination +2

Deception Game: Closing the Safety-Learning Loop in Interactive Robot Autonomy

no code implementations3 Sep 2023 Haimin Hu, Zixu Zhang, Kensuke Nakamura, Andrea Bajcsy, Jaime F. Fisac

An outstanding challenge for the widespread deployment of robotic systems like autonomous vehicles is ensuring safe interaction with humans without sacrificing performance.

Autonomous Vehicles Reinforcement Learning (RL)

MAF-Net: Multiple attention-guided fusion network for fundus vascular image segmentation

no code implementations5 May 2023 Yuanyuan Peng, Pengpeng Luan, Zixu Zhang

To enrich contextual information for the loss of scene information compensation, an attention fusion mechanism that combines the channel attention with spatial attention mechanisms constructed by Transformer is employed to extract various features of blood vessels from retinal fundus images.

Image Segmentation Semantic Segmentation

Novel coronavirus pneumonia lesion segmentation in CT images

no code implementations25 Oct 2021 Yuanyuan Peng, Zixu Zhang, Hongbin Tu, Xiong Li

Results: The performance of the proposed method was validated in experiments with a publicly available dataset.

Computed Tomography (CT) Ensemble Learning +3

Pixel-Wise Motion Deblurring of Thermal Videos

1 code implementation8 Jun 2020 Manikandasriram Srinivasan Ramanagopal, Zixu Zhang, Ram Vasudevan, Matthew Johnson-Roberson

To address this problem, this paper formulates reversing the effect of thermal inertia at a single pixel as a Least Absolute Shrinkage and Selection Operator (LASSO) problem which we can solve rapidly using a quadratic programming solver.

Deblurring

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