Search Results for author: Qiang Hu

Found 43 papers, 10 papers with code

MegaFusion: Extend Diffusion Models towards Higher-resolution Image Generation without Further Tuning

1 code implementation20 Aug 2024 HaoNing Wu, Shaocheng Shen, Qiang Hu, Xiaoyun Zhang, Ya zhang, Yanfeng Wang

Diffusion models have emerged as frontrunners in text-to-image generation, however, their fixed image resolution during training often leads to challenges in high-resolution image generation, such as semantic deviations and object replication.

Denoising Scheduling +1

Active Testing of Large Language Model via Multi-Stage Sampling

no code implementations7 Aug 2024 Yuheng Huang, Jiayang Song, Qiang Hu, Felix Juefei-Xu, Lei Ma

Given that LLMs' diverse task-handling abilities stem from large volumes of training data, a comprehensive evaluation also necessitates abundant, well-annotated, and representative test data to assess LLM performance across various downstream tasks.

Language Modelling Large Language Model

HPC: Hierarchical Progressive Coding Framework for Volumetric Video

no code implementations12 Jul 2024 Zihan Zheng, Houqiang Zhong, Qiang Hu, Xiaoyun Zhang, Li Song, Ya zhang, Yanfeng Wang

Volumetric video based on Neural Radiance Field (NeRF) holds vast potential for various 3D applications, but its substantial data volume poses significant challenges for compression and transmission.

SALI: Short-term Alignment and Long-term Interaction Network for Colonoscopy Video Polyp Segmentation

1 code implementation19 Jun 2024 Qiang Hu, Zhenyu Yi, Ying Zhou, Fang Peng, Mei Liu, Qiang Li, Zhiwei Wang

In this context, we focus on robust video polyp segmentation by enhancing the adjacent feature consistency and rebuilding the reliable polyp representation.

Segmentation Video Polyp Segmentation +2

JointRF: End-to-End Joint Optimization for Dynamic Neural Radiance Field Representation and Compression

no code implementations23 May 2024 Zihan Zheng, Houqiang Zhong, Qiang Hu, Xiaoyun Zhang, Li Song, Ya zhang, Yanfeng Wang

Neural Radiance Field (NeRF) excels in photo-realistically static scenes, inspiring numerous efforts to facilitate volumetric videos.

Feature Compression

DENOISER: Rethinking the Robustness for Open-Vocabulary Action Recognition

no code implementations23 Apr 2024 Haozhe Cheng, Cheng Ju, Haicheng Wang, Jinxiang Liu, Mengting Chen, Qiang Hu, Xiaoyun Zhang, Yanfeng Wang

The denoised text classes help OVAR models classify visual samples more accurately; in return, classified visual samples help better denoising.

Denoising Open Vocabulary Action Recognition

Enhancing Fault Detection for Large Language Models via Mutation-Based Confidence Smoothing

no code implementations14 Apr 2024 Qiang Hu, Jin Wen, Maxime Cordy, Yuheng Huang, Xiaofei Xie, Lei Ma

Large language models (LLMs) achieved great success in multiple application domains and attracted huge attention from different research communities recently.

Fault Detection

MonoBox: Tightness-free Box-supervised Polyp Segmentation using Monotonicity Constraint

no code implementations1 Apr 2024 Qiang Hu, Zhenyu Yi, Ying Zhou, Ting Li, Fan Huang, Mei Liu, Qiang Li, Zhiwei Wang

We propose MonoBox, an innovative box-supervised segmentation method constrained by monotonicity to liberate its training from the user-unfriendly box-tightness assumption.

Multiple Instance Learning Segmentation

Importance Guided Data Augmentation for Neural-Based Code Understanding

no code implementations24 Feb 2024 Zeming Dong, Qiang Hu, Xiaofei Xie, Maxime Cordy, Mike Papadakis, Jianjun Zhao

In this paper, we introduce a general data augmentation framework, GenCode, to enhance the training of code understanding models.

Clone Detection Data Augmentation

Efficient Dynamic-NeRF Based Volumetric Video Coding with Rate Distortion Optimization

no code implementations2 Feb 2024 ZhiYu Zhang, Guo Lu, Huanxiong Liang, Anni Tang, Qiang Hu, Li Song

Volumetric videos, benefiting from immersive 3D realism and interactivity, hold vast potential for various applications, while the tremendous data volume poses significant challenges for compression.

Video Compression

VideoRF: Rendering Dynamic Radiance Fields as 2D Feature Video Streams

no code implementations CVPR 2024 Liao Wang, Kaixin Yao, Chengcheng Guo, Zhirui Zhang, Qiang Hu, Jingyi Yu, Lan Xu, Minye Wu

In this paper, we introduce VideoRF, the first approach to enable real-time streaming and rendering of dynamic radiance fields on mobile platforms.

IBoxCLA: Towards Robust Box-supervised Segmentation of Polyp via Improved Box-dice and Contrastive Latent-anchors

no code implementations11 Oct 2023 Zhiwei Wang, Qiang Hu, Hongkuan Shi, Li He, Man He, Wenxuan Dai, Yinjiao Tian, Xin Yang, Mei Liu, Qiang Li

In response, we propose two innovative learning fashions, Improved Box-dice (IBox) and Contrastive Latent-Anchors (CLA), and combine them to train a robust box-supervised model IBoxCLA.

Segmentation

Evaluating the Robustness of Test Selection Methods for Deep Neural Networks

no code implementations29 Jul 2023 Qiang Hu, Yuejun Guo, Xiaofei Xie, Maxime Cordy, Wei Ma, Mike Papadakis, Yves Le Traon

Testing deep learning-based systems is crucial but challenging due to the required time and labor for labeling collected raw data.

Fault Detection

CodeLens: An Interactive Tool for Visualizing Code Representations

no code implementations27 Jul 2023 Yuejun Guo, Seifeddine Bettaieb, Qiang Hu, Yves Le Traon, Qiang Tang

Representing source code in a generic input format is crucial to automate software engineering tasks, e. g., applying machine learning algorithms to extract information.

LMs: Understanding Code Syntax and Semantics for Code Analysis

no code implementations20 May 2023 Wei Ma, Shangqing Liu, ZhiHao Lin, Wenhan Wang, Qiang Hu, Ye Liu, Cen Zhang, Liming Nie, Li Li, Yang Liu

We break down the abilities needed for artificial intelligence~(AI) models to address SE tasks related to code analysis into three categories: 1) syntax understanding, 2) static behavior understanding, and 3) dynamic behavior understanding.

A Black-Box Attack on Code Models via Representation Nearest Neighbor Search

no code implementations10 May 2023 Jie Zhang, Wei Ma, Qiang Hu, Shangqing Liu, Xiaofei Xie, Yves Le Traon, Yang Liu

Furthermore, the perturbation of adversarial examples introduced by RNNS is smaller compared to the baselines in terms of the number of replaced variables and the change in variable length.

Adversarial Attack Clone Detection

Neural Residual Radiance Fields for Streamably Free-Viewpoint Videos

no code implementations CVPR 2023 Liao Wang, Qiang Hu, Qihan He, Ziyu Wang, Jingyi Yu, Tinne Tuytelaars, Lan Xu, Minye Wu

The success of the Neural Radiance Fields (NeRFs) for modeling and free-view rendering static objects has inspired numerous attempts on dynamic scenes.

Decoder Neural Rendering

NEPHELE: A Neural Platform for Highly Realistic Cloud Radiance Rendering

no code implementations7 Mar 2023 Haimin Luo, Siyuan Zhang, Fuqiang Zhao, Haotian Jing, Penghao Wang, Zhenxiao Yu, Dongxue Yan, Junran Ding, Boyuan Zhang, Qiang Hu, Shu Yin, Lan Xu, Jingyi Yu

Using such a cloud platform compatible with neural rendering, we further showcase the capabilities of our cloud radiance rendering through a series of applications, ranging from cloud VR/AR rendering.

Neural Rendering

Dynamic Feature Pruning and Consolidation for Occluded Person Re-Identification

1 code implementation27 Nov 2022 Yuteng Ye, Hang Zhou, Jiale Cai, Chenxing Gao, Youjia Zhang, Junle Wang, Qiang Hu, Junqing Yu, Wei Yang

The framework mainly consists of a sparse encoder, a multi-view feature mathcing module, and a feature consolidation decoder.

Decoder Occluded Person Re-Identification

On the Effectiveness of Hybrid Pooling in Mixup-Based Graph Learning for Language Processing

no code implementations6 Oct 2022 Zeming Dong, Qiang Hu, Zhenya Zhang, Yuejun Guo, Maxime Cordy, Mike Papadakis, Yves Le Traon, Jianjun Zhao

Graph neural network (GNN)-based graph learning has been popular in natural language and programming language processing, particularly in text and source code classification.

Code Classification Data Augmentation +3

Aries: Efficient Testing of Deep Neural Networks via Labeling-Free Accuracy Estimation

1 code implementation22 Jul 2022 Qiang Hu, Yuejun Guo, Xiaofei Xie, Maxime Cordy, Lei Ma, Mike Papadakis, Yves Le Traon

Recent studies show that test selection for DNN is a promising direction that tackles this issue by selecting minimal representative data to label and using these data to assess the model.

Preprocessing Enhanced Image Compression for Machine Vision

no code implementations12 Jun 2022 Guo Lu, Xingtong Ge, Tianxiong Zhong, Jing Geng, Qiang Hu

Specifically, we propose a neural preprocessing module before the encoder to maintain the useful semantic information for the downstream tasks and suppress the irrelevant information for bitrate saving.

Image Compression object-detection +2

CodeS: Towards Code Model Generalization Under Distribution Shift

2 code implementations11 Jun 2022 Qiang Hu, Yuejun Guo, Xiaofei Xie, Maxime Cordy, Lei Ma, Mike Papadakis, Yves Le Traon

Distribution shift has been a longstanding challenge for the reliable deployment of deep learning (DL) models due to unexpected accuracy degradation.

Benchmarking Code Classification

LaF: Labeling-Free Model Selection for Automated Deep Neural Network Reusing

1 code implementation8 Apr 2022 Qiang Hu, Yuejun Guo, Maxime Cordy, Xiaofei Xie, Mike Papadakis, Yves Le Traon

Applying deep learning to science is a new trend in recent years which leads DL engineering to become an important problem.

Model Selection

WCL-BBCD: A Contrastive Learning and Knowledge Graph Approach to Named Entity Recognition

no code implementations14 Mar 2022 Renjie Zhou, Qiang Hu, Jian Wan, Jilin Zhang, Qiang Liu, Tianxiang Hu, Jianjun Li

The model first trains the sentence pairs in the text, calculate similarity between sentence pairs, and fine-tunes BERT used for the named entity recognition task according to the similarity, so as to alleviate word ambiguity.

Contrastive Learning Knowledge Graphs +4

GAMMA Challenge:Glaucoma grAding from Multi-Modality imAges

no code implementations14 Feb 2022 Junde Wu, Huihui Fang, Fei Li, Huazhu Fu, Fengbin Lin, Jiongcheng Li, Lexing Huang, Qinji Yu, Sifan Song, Xinxing Xu, Yanyu Xu, Wensai Wang, Lingxiao Wang, Shuai Lu, Huiqi Li, Shihua Huang, Zhichao Lu, Chubin Ou, Xifei Wei, Bingyuan Liu, Riadh Kobbi, Xiaoying Tang, Li Lin, Qiang Zhou, Qiang Hu, Hrvoje Bogunovic, José Ignacio Orlando, Xiulan Zhang, Yanwu Xu

However, although numerous algorithms are proposed based on fundus images or OCT volumes in computer-aided diagnosis, there are still few methods leveraging both of the modalities for the glaucoma assessment.

Learning Based Multi-Modality Image and Video Compression

no code implementations CVPR 2022 Guo Lu, Tianxiong Zhong, Jing Geng, Qiang Hu, Dong Xu

Specifically, given the image in the reference modality (e. g., the infrared image), we use the channel-wise alignment module to produce the aligned features based on the affine transform.

Data Compression Video Compression

Robust Active Learning: Sample-Efficient Training of Robust Deep Learning Models

no code implementations5 Dec 2021 Yuejun Guo, Qiang Hu, Maxime Cordy, Mike Papadakis, Yves Le Traon

Our acquisition function -- named density-based robust sampling with entropy (DRE) -- outperforms the other acquisition functions (including random) in terms of robustness by up to 24. 40\% (3. 84\% than random particularly), while remaining competitive on accuracy.

Active Learning

MUTEN: Boosting Gradient-Based Adversarial Attacks via Mutant-Based Ensembles

no code implementations27 Sep 2021 Yuejun Guo, Qiang Hu, Maxime Cordy, Michail Papadakis, Yves Le Traon

In this paper, we propose MUTEN, a low-cost method to improve the success rate of well-known attacks against gradient-masking models.

Diversity

Understanding Deep MIMO Detection

no code implementations11 May 2021 Qiang Hu, Feifei Gao, Hao Zhang, Geoffrey Y. Li, Zongben Xu

We demonstrate that data-driven DL detector asymptotically approaches to the maximum a posterior (MAP) detector in various scenarios but requires enough training samples to converge in time-varying channels.

TransFuse: Fusing Transformers and CNNs for Medical Image Segmentation

1 code implementation16 Feb 2021 Yundong Zhang, Huiye Liu, Qiang Hu

Medical image segmentation - the prerequisite of numerous clinical needs - has been significantly prospered by recent advances in convolutional neural networks (CNNs).

Image Segmentation Medical Image Segmentation +2

LGNN: A Context-aware Line Segment Detector

no code implementations13 Aug 2020 Quan Meng, Jiakai Zhang, Qiang Hu, Xuming He, Jingyi Yu

We present a novel real-time line segment detection scheme called Line Graph Neural Network (LGNN).

Graph Neural Network Line Segment Detection

Towards Characterizing Adversarial Defects of Deep Learning Software from the Lens of Uncertainty

no code implementations24 Apr 2020 Xiyue Zhang, Xiaofei Xie, Lei Ma, Xiaoning Du, Qiang Hu, Yang Liu, Jianjun Zhao, Meng Sun

Based on this, we propose an automated testing technique to generate multiple types of uncommon AEs and BEs that are largely missed by existing techniques.

Adversarial Attack

An Empirical Study towards Characterizing Deep Learning Development and Deployment across Different Frameworks and Platforms

no code implementations15 Sep 2019 Qianyu Guo, Sen Chen, Xiaofei Xie, Lei Ma, Qiang Hu, Hongtao Liu, Yang Liu, Jianjun Zhao, Xiaohong Li

However, the differences in architecture designs and implementations of existing frameworks and platforms bring new challenges for DL software development and deployment.

Adversarial Attack Adversarial Robustness +1

An Orchestrated Empirical Study on Deep Learning Frameworks and Platforms

no code implementations13 Nov 2018 Qianyu Guo, Xiaofei Xie, Lei Ma, Qiang Hu, Ruitao Feng, Li Li, Yang Liu, Jianjun Zhao, Xiaohong Li

Up to the present, it still lacks a comprehensive study on how current diverse DL frameworks and platforms influence the DL software development process.

Autonomous Driving

Nearly-tight bounds on linear regions of piecewise linear neural networks

no code implementations31 Oct 2018 Qiang Hu, Hao Zhang

The developments of deep neural networks (DNN) in recent years have ushered a brand new era of artificial intelligence.

Secure Deep Learning Engineering: A Software Quality Assurance Perspective

no code implementations10 Oct 2018 Lei Ma, Felix Juefei-Xu, Minhui Xue, Qiang Hu, Sen Chen, Bo Li, Yang Liu, Jianjun Zhao, Jianxiong Yin, Simon See

Over the past decades, deep learning (DL) systems have achieved tremendous success and gained great popularity in various applications, such as intelligent machines, image processing, speech processing, and medical diagnostics.

Enhancing HEVC Compressed Videos with a Partition-masked Convolutional Neural Network

no code implementations10 May 2018 Xiaoyi He, Qiang Hu, Xintong Han, Xiaoyun Zhang, Chongyang Zhang, Weiyao Lin

In this paper, we propose a partition-masked Convolution Neural Network (CNN) to achieve compressed-video enhancement for the state-of-the-art coding standard, High Efficiency Video Coding (HECV).

Multimedia

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