Search Results for author: Xin Ding

Found 16 papers, 11 papers with code

Driving Style Alignment for LLM-powered Driver Agent

2 code implementations17 Mar 2024 Ruoxuan Yang, Xinyue Zhang, Anais Fernandez-Laaksonen, Xin Ding, Jiangtao Gong

Recently, LLM-powered driver agents have demonstrated considerable potential in the field of autonomous driving, showcasing human-like reasoning and decision-making abilities. However, current research on aligning driver agent behaviors with human driving styles remains limited, partly due to the scarcity of high-quality natural language data from human driving behaviors. To address this research gap, we propose a multi-alignment framework designed to align driver agents with human driving styles through demonstrations and feedback.

Autonomous Driving Decision Making

CBQ: Cross-Block Quantization for Large Language Models

no code implementations13 Dec 2023 Xin Ding, Xiaoyu Liu, Zhijun Tu, Yun Zhang, Wei Li, Jie Hu, Hanting Chen, Yehui Tang, Zhiwei Xiong, Baoqun Yin, Yunhe Wang

Post-training quantization (PTQ) has played a key role in compressing large language models (LLMs) with ultra-low costs.

Quantization

Turning Waste into Wealth: Leveraging Low-Quality Samples for Enhancing Continuous Conditional Generative Adversarial Networks

1 code implementation20 Aug 2023 Xin Ding, Yongwei Wang, Zuheng Xu

Although Negative Data Augmentation (NDA) effectively enhances unconditional and class-conditional GANs by introducing anomalies into real training images, guiding the GANs away from low-quality outputs, its impact on CcGANs is limited, as it fails to replicate negative samples that may occur during the CcGAN sampling.

Data Augmentation

A Scale-Arbitrary Image Super-Resolution Network Using Frequency-domain Information

no code implementations8 Dec 2022 Jing Fang, Yinbo Yu, Zhongyuan Wang, Xin Ding, Ruimin Hu

Image super-resolution (SR) is a technique to recover lost high-frequency information in low-resolution (LR) images.

Image Super-Resolution valid

Delving into Deep Image Prior for Adversarial Defense: A Novel Reconstruction-based Defense Framework

no code implementations31 Jul 2021 Li Ding, Yongwei Wang, Xin Ding, Kaiwen Yuan, Ping Wang, Hua Huang, Z. Jane Wang

Deep learning based image classification models are shown vulnerable to adversarial attacks by injecting deliberately crafted noises to clean images.

Adversarial Defense Image Classification +1

Distilling and Transferring Knowledge via cGAN-generated Samples for Image Classification and Regression

2 code implementations7 Apr 2021 Xin Ding, Yongwei Wang, Zuheng Xu, Z. Jane Wang, William J. Welch

Knowledge distillation (KD) has been actively studied for image classification tasks in deep learning, aiming to improve the performance of a student based on the knowledge from a teacher.

General Classification Image Classification +2

Continuous Conditional Generative Adversarial Networks: Novel Empirical Losses and Label Input Mechanisms

1 code implementation ICLR 2021 Xin Ding, Yongwei Wang, Zuheng Xu, William J. Welch, Z. Jane Wang

This work proposes the continuous conditional generative adversarial network (CcGAN), the first generative model for image generation conditional on continuous, scalar conditions (termed regression labels).

Generative Adversarial Network Image Generation +1

Perception Matters: Exploring Imperceptible and Transferable Anti-forensics for GAN-generated Fake Face Imagery Detection

1 code implementation29 Oct 2020 Yongwei Wang, Xin Ding, Li Ding, Rabab Ward, Z. Jane Wang

Specially, when adversaries consider imperceptibility as a constraint, the proposed anti-forensic method can improve the average attack success rate by around 30\% on fake face images over two baseline attacks.

Adversarial Attack Face Detection

Classification Beats Regression: Counting of Cells from Greyscale Microscopic Images based on Annotation-free Training Samples

1 code implementation28 Oct 2020 Xin Ding, Qiong Zhang, William J. Welch

Modern methods often formulate the counting of cells from microscopic images as a regression problem and more or less rely on expensive, manually annotated training images (e. g., dot annotations indicating the centroids of cells or segmentation masks identifying the contours of cells).

Data Augmentation Image Classification

A Novel Neural Network Training Framework with Data Assimilation

no code implementations6 Oct 2020 Chong Chen, Qinghui Xing, Xin Ding, Yaru Xue, Tianfu Zhong

In data assimilation algorithms, the error covariance between the forecasts and observations is used to optimize the parameters.

Sparse transition matrix estimation for high-dimensional and locally stationary vector autoregressive models

1 code implementation14 Apr 2016 Xin Ding, Ziyi Qiu, Xiaohui Chen

Under the sparsity assumption on the transition matrix, we establish the rate of convergence of the proposed estimator and show that the convergence rate depends on the smoothness of the locally stationary VAR processes only through the smoothness of the transition matrix function.

Statistics Theory Applications Statistics Theory

Joint Sensing Matrix and Sparsifying Dictionary Optimization for Tensor Compressive Sensing

no code implementations28 Jan 2016 Xin Ding, Wei Chen, Ian J. Wassell

In this paper, we propose a joint optimization approach of the sensing matrix and dictionary for a TCS system.

Compressive Sensing Dictionary Learning

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