Search Results for author: Ziyu Chen

Found 14 papers, 4 papers with code

FASIONAD : FAst and Slow FusION Thinking Systems for Human-Like Autonomous Driving with Adaptive Feedback

no code implementations27 Nov 2024 Kangan Qian, Zhikun Ma, Yangfan He, Ziang Luo, Tianyu Shi, Tianze Zhu, Jiayin Li, Jianhui Wang, Ziyu Chen, Xiao He, Yining Shi, Zheng Fu, Xinyu Jiao, Kun Jiang, Diange Yang, Takafumi Matsumaru

FASIONAD achieves state-of-the-art performance on this benchmark, establishing a new standard for frameworks integrating fast and slow cognitive processes in autonomous driving.

Autonomous Driving Decision Making

From Laws to Motivation: Guiding Exploration through Law-Based Reasoning and Rewards

no code implementations24 Nov 2024 Ziyu Chen, Zhiqing Xiao, Xinbei Jiang, Junbo Zhao

Large Language Models (LLMs) and Reinforcement Learning (RL) are two powerful approaches for building autonomous agents.

Reinforcement Learning (RL)

Equivariant score-based generative models provably learn distributions with symmetries efficiently

no code implementations2 Oct 2024 Ziyu Chen, Markos A. Katsoulakis, Benjamin J. Zhang

Empirical studies have demonstrated that incorporating symmetries into generative models can provide better generalization and sampling efficiency when the underlying data distribution has group symmetry.

Data Augmentation Generalization Bounds +1

OmniRe: Omni Urban Scene Reconstruction

no code implementations29 Aug 2024 Ziyu Chen, Jiawei Yang, Jiahui Huang, Riccardo de Lutio, Janick Martinez Esturo, Boris Ivanovic, Or Litany, Zan Gojcic, Sanja Fidler, Marco Pavone, Li Song, Yue Wang

To that end, we propose a comprehensive 3DGS framework for driving scenes, named OmniRe, that allows for accurate, full-length reconstruction of diverse dynamic objects in a driving log.

Robust Generative Learning with Lipschitz-Regularized $α$-Divergences Allows Minimal Assumptions on Target Distributions

no code implementations22 May 2024 Ziyu Chen, Hyemin Gu, Markos A. Katsoulakis, Luc Rey-Bellet, Wei Zhu

We also provide the first sample complexity bounds for empirical estimations of these divergences on unbounded domains.

360-Degree Panorama Generation from Few Unregistered NFoV Images

1 code implementation28 Aug 2023 Jionghao Wang, Ziyu Chen, Jun Ling, Rong Xie, Li Song

360$^\circ$ panoramas are extensively utilized as environmental light sources in computer graphics.

Statistical Guarantees of Group-Invariant GANs

no code implementations22 May 2023 Ziyu Chen, Markos A. Katsoulakis, Luc Rey-Bellet, Wei Zhu

Group-invariant generative adversarial networks (GANs) are a type of GANs in which the generators and discriminators are hardwired with group symmetries.

Data Augmentation

Mosaic Representation Learning for Self-supervised Visual Pre-training

2 code implementations journal 2023 Zhaoqing Wang, Ziyu Chen, Yaqian Li, Yandong Guo, Jun Yu, Mingming Gong, Tongliang Liu

To address this problem, we propose a mosaic representation learning framework (MosRep), consisting of a new data augmentation strategy that enriches the backgrounds of each small crop and improves the quality of visual representations.

Data Augmentation Representation Learning +1

Sample Complexity of Probability Divergences under Group Symmetry

no code implementations3 Feb 2023 Ziyu Chen, Markos A. Katsoulakis, Luc Rey-Bellet, Wei Zhu

For the maximum mean discrepancy (MMD), the improvement of sample complexity is more nuanced, as it depends on not only the group size but also the choice of kernel.

SpecNet2: Orthogonalization-free spectral embedding by neural networks

1 code implementation14 Jun 2022 Ziyu Chen, Yingzhou Li, Xiuyuan Cheng

The current paper introduces a new neural network approach, named SpecNet2, to compute spectral embedding which optimizes an equivalent objective of the eigen-problem and removes the orthogonalization layer in SpecNet1.

Computational Efficiency

Representation-Agnostic Shape Fields

1 code implementation ICLR 2022 Xiaoyang Huang, Jiancheng Yang, Yanjun Wang, Ziyu Chen, Linguo Li, Teng Li, Bingbing Ni, Wenjun Zhang

In this study, we present Representation-Agnostic Shape Fields (RASF), a generalizable and computation-efficient shape embedding module for 3D deep learning.

Deep Learning

Significant Inverse Magnetocaloric Effect induced by Quantum Criticality

no code implementations17 Feb 2021 Tao Liu, Xin-Yang Liu, Yuan Gao, Hai Jin, Jun He, Xian-Lei Sheng, Wentao Jin, Ziyu Chen, Wei Li

Strong fluctuations in the low-$T$ quantum critical regime can give rise to a large thermal entropy change and thus significant cooling effect when approaching the QCP.

Strongly Correlated Electrons

FHEDN: A based on context modeling Feature Hierarchy Encoder-Decoder Network for face detection

no code implementations11 Dec 2017 Zexun Zhou, Zhongshi He, Ziyu Chen, Yuanyuan Jia, HaiYan Wang, Jinglong Du, Dingding Chen

The proposed network is consist of multiple context modeling and prediction modules, which are in order to detect small, blur, occluded and diverse pose faces.

Decoder Face Detection +1

Hybrid Dirac Semimetal in CaAgBi Materials Family

no code implementations13 Jun 2017 Cong Chen, Shan-Shan Wang, Lei Liu, Zhi-Ming Yu, Xian-Lei Sheng, Ziyu Chen, Shengyuan A. Yang

Based on their formation mechanisms, Dirac points in three-dimensional systems can be classified as accidental or essential.

Materials Science

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