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Chong Wang

56 accepted papers

2026

Activation Matters: Test-time Activated Negative Labels for OOD Detection with Vision-Language Models

CVPR 2026

Out-of-distribution (OOD) detection aims to identify samples that deviate from in-distribution (ID). One popular pipeline addresses this by introducing negative labels distant from ID classes and detecting OOD based on their distance to these labels.However, such labels may present poor activation o

Cited by 0SourceScholar
2026

BA-GS: Bayesian Adaptive Gaussian Splatting for SFM-Free 3D Reconstruction

CVPR 2026

3D Gaussian Splatting (3DGS) has demonstrated exceptional performance in reconstruction and novel view synthesis tasks. However, its reliance on Structure-from-Motion preprocessing may lead to degraded performance under sparse-view scenarios. Recent works attempt to address this limitation by levera

Cited by 0SourceScholar
2026

Learning Generalizable 3D Medical Image Representations from Mask-Guided Self-Supervision

CVPR 2026

Foundation models have transformed vision and language by learning general-purpose representations from large-scale unlabeled data, yet 3D medical imaging lacks analogous approaches. Existing self-supervised methods rely on low-level reconstruction or contrastive objectives that fail to capture the

Cited by 0SourcecodeScholar
2026

Multi-modal Frequency Decomposition Network for Semantic Scene Completion

CVPR 2026

Based on an RGB-D image pair, semantic scene completion (SSC) provides a description for 3D scene understanding by predicting 3D semantic occupancy map. Recent methods extract RGB-D multi-modal features and fuse them in spatial domain, which disregards the misalignment caused by the imperfect raw mu

Cited by 0SourceScholar
2026

RecEdit-Drive: 3D Reconstruction-Guided Spatiotemporal Video Editing for Autonomous Driving Scenes

CVPR 2026

High-quality video editing and processing are crucial in domains such as filmmaking and autonomous driving, where accurate visual refinement and data preparation are essential. However, it is challenging to achieve precise control over dynamic objects while maintaining spatiotemporal consistency. Cu

Cited by 0SourcecodeScholar
2026

Synthetic Bootstrapped Pretraining

ICLR 2026poster

We introduce Synthetic Bootstrapped Pretraining (SBP), a language model (LM) pretraining procedure that first learns a model of relations between documents from the pretraining dataset and then leverages it to synthesize a vast new corpus for joint training. While the standard pretraining teaches LM…

Cited by 0SourceScholar
2025

Animate Your Thoughts: Reconstruction of Dynamic Natural Vision from Human Brain Activity

ICLR 2025poster

Reconstructing human dynamic vision from brain activity is a challenging task with great scientific significance. Although prior video reconstruction methods have made substantial progress, they still suffer from several limitations, including: (1) difficulty in simultaneously reconciling semantic…

2025

Benchmarking LLMs and LLM-based Agents in Practical Vulnerability Detection for Code Repositories

ACL 2025long

Large Language Models (LLMs) have shown promise in software vulnerability detection, particularly on function-level benchmarks like Devign and BigVul. However, real-world detection requires interprocedural analysis, as vulnerabilities often emerge through multi-hop function calls rather than isolate…

Cited by 0SourcePDFScholar
2025

CommVQ: Commutative Vector Quantization for KV Cache Compression

ICML 2025poster

Large Language Models (LLMs) are increasingly used in applications requiring long context lengths, but the key-value (KV) cache often becomes a memory bottleneck on GPUs as context grows. To address this, we propose Commutative Vector Quantization (CommVQ) to significantly reduce memory usage for lo…

2025

Differential Private Stochastic Optimization with Heavy-tailed Data: Towards Optimal Rates

AAAI 2025technical

We study convex optimization problems under differential privacy (DP). With heavy-tailed gradients, existing works achieve suboptimal rates. The main obstacle is that existing gradient estimators have suboptimal tail property, resulting in a superfluous factor of d in the union bound. In this paper,…

Cited by 4SourcePDFScholar
2025

Efficient Universal Goal Hijacking with Semantics-guided Prompt Organization

ACL 2025long

Universal goal hijacking is a kind of prompt injection attack that forces LLMs to return a target malicious response for arbitrary normal user prompts. The previous methods achieve high attack performance while being too cumbersome and time-consuming. Also, they have concentrated solely on optimizat…

2025

Gaze-Assisted Human-Centric Domain Adaptation for Cardiac Ultrasound Image Segmentation

ICASSP 2025accepted

Domain adaptation (DA) for cardiac ultrasound image segmentation is clinically significant and valuable. However, previous domain adaptation methods are prone to be affected by the incomplete pseudo label and low-quality target to source images. Human-centric domain adaptation has great advantages o…

Cited by 0SourceScholar
2025

Instruction-Following Pruning for Large Language Models

ICML 2025poster

With the rapid scaling of large language models (LLMs), structured pruning has become a widely used technique to learn efficient, smaller models from larger ones, delivering superior performance compared to training similarly sized models from scratch. In this paper, we move beyond the traditional s…

Cited by 0SourcePDFScholar
2025

J&H: Evaluating the Robustness of Large Language Models Under Knowledge-Injection Attacks in Legal Domain

AAAI 2025technical

As the scale and capabilities of Large Language Models (LLMs) increase, their applications in knowledge-intensive fields such as legal domain have garnered widespread attention. However, it remains doubtful whether these LLMs make judgments based on domain knowledge for reasoning. If LLMs base their…

2025

Reconciling Stochastic and Deterministic Strategies for Zero-shot Image Restoration using Diffusion Model in Dual

CVPR 2025poster

Plug-and-play (PnP) methods offer an iterative strategy for solving image restoration (IR) problems in a zero-shot manner, using a learned discriminative denoiser as the implicit prior. More recently, a sampling-based variant of this approach, which utilizes a pre-trained generative diffusion model,…

2025

Step-by-Step Reasoning for Math Problems via Twisted Sequential Monte Carlo

ICLR 2025poster

Augmenting the multi-step reasoning abilities of Large Language Models (LLMs) has been a persistent challenge. Recently, verification has shown promise in improving solution consistency by evaluating generated outputs. However, current verification approaches suffer from sampling inefficiencies, req…

Cited by 1SourcePDFScholar
2025

UCF-Crime-DVS: A Novel Event-Based Dataset for Video Anomaly Detection with Spiking Neural Networks

AAAI 2025technical

Video anomaly detection plays a significant role in intelligent surveillance systems. To enhance model's anomaly recognition ability, previous works have typically involved RGB, optical flow, and text features. Recently, dynamic vision sensors (DVS) have emerged as a promising technology, which capt…

2024

"MM1: Methods, Analysis & Insights from Multimodal LLM Pre-training"

ECCV 2024poster

"In this work, we discuss building performant Multimodal Large Language Models (MLLMs). In particular, we study the importance of various architecture components and data choices. Through careful and comprehensive ablations of the image encoder, the vision language connector, and various pre-trainin…

2024

Benchmarking Adversarial Robustness of Image Shadow Removal with Shadow-Adaptive Attacks

ICASSP 2024accepted

Shadow removal is a task aimed at erasing regional shadows present in images and reinstating visually pleasing natural scenes with consistent illumination. While recent deep learning techniques have demonstrated impressive performance in image shadow removal, their robustness against adversarial att…

Cited by 0SourceScholar
2024

CPM: Class-conditional Prompting Machine for Audio-visual Segmentation

ECCV 2024poster

"Audio-visual segmentation (AVS) is an emerging task that aims to accurately segment sounding objects based on audio-visual cues. The success of AVS learning systems depends on the effectiveness of cross-modal interaction. Such a requirement can be naturally fulfilled by leveraging transformer-based…

Cited by 2SourcePDFScholar
2024

Distill Vision Transformers to CNNs via Teacher Collaboration

ICASSP 2024accepted

The vision transformer (ViT) has recently emerged as a leading approach in various domains, outperforming other methods. Therefore, it is logical to explore the possibility of transferring the superior knowledge from ViT to more compact and cost-effective convolutional neural networks (CNNs). Howeve…

Cited by 0SourceScholar
2024

Progressive Divide-and-Conquer via Subsampling Decomposition for Accelerated MRI

CVPR 2024highlight

Deep unfolding networks (DUN) have emerged as a popular iterative framework for accelerated magnetic resonance imaging (MRI) reconstruction. However conventional DUN aims to reconstruct all the missing information within the entire space in each iteration. Thus it could be challenging when dealing w…

2024

STSP: Spatial-Temporal Subspace Projection for Video Class-incremental Learning

ECCV 2024poster

"Video class-incremental learning (VCIL) aims to learn discriminative and generalized feature representations for video frames to mitigate catastrophic forgetting. Conventional VCIL methods often retain a subset of frames or features from prior tasks as exemplars for subsequent incremental learning…

Cited by 3SourcePDFScholar
2024

Temporal As a Plugin: Unsupervised Video Denoising with Pre-Trained Image Denoisers

ECCV 2024poster

"Recent advancements in deep learning have shown impressive results in image and video denoising, leveraging extensive pairs of noisy and noise-free data for supervision. However, the challenge of acquiring paired videos for dynamic scenes hampers the practical deployment of deep video denoising tec…

2024

Unraveling Instance Associations: A Closer Look for Audio-Visual Segmentation

CVPR 2024poster

Audio-visual segmentation (AVS) is a challenging task that involves accurately segmenting sounding objects based on audio-visual cues. The effectiveness of audio-visual learning critically depends on achieving accurate cross-modal alignment between sound and visual objects. Successful audio-visual l…

2024

Zero-Shot Object Detection with Partitioned Contrastive Feature Alignment

ICASSP 2024accepted

How to properly align the extracted visual features with certain semantic embeddings of unseen objects is crucial to the problem of Zero-Shot Object Detection (ZSD). To give a better guess of those unseen visual features, a partitioned contrast strategy is proposed in this paper to train the visual…

Cited by 0SourceScholar
2023

BoMD: Bag of Multi-label Descriptors for Noisy Chest X-ray Classification

ICCV 2023poster

Deep learning methods have shown outstanding classification accuracy in medical imaging problems, which is largely attributed to the availability of large-scale datasets manually annotated with clean labels. However, given the high cost of such manual annotation, new medical imaging classification p…

Cited by 10PDFcodeScholar
2023

Boundary-Aware Divide and Conquer: A Diffusion-Based Solution for Unsupervised Shadow Removal

ICCV 2023poster

Recent deep learning methods have achieved superior results in shadow removal. However, most of these supervised methods rely on training over a huge amount of shadow and shadow-free image pairs, which require laborious annotations and may end up with poor model generalization. Shadows, in fact, onl…

Cited by 19PDFScholar
2023

Cross-Subject Mental Fatigue Detection based on Separable Spatio-Temporal Feature Aggregation

ICASSP 2023accepted

Cross-subject mental fatigue detection via Electroencephalography (EEG) is challenging because EEG from different individuals varies greatly. Existing works have exploited domain adaption to alleviate the individual discrepancy due to personality, gender and so on. However, the distributions of data…

Cited by 0SourceScholar
2023

DPAUC: Differentially Private AUC Computation in Federated Learning

AAAI 2023technical

Federated learning (FL) has gained significant attention recently as a privacy-enhancing tool to jointly train a machine learning model by multiple participants. The prior work on FL has mostly studied how to protect label privacy during model training. However, model evaluation in FL might also le…

2023

Enlightening the Student in Knowledge Distillation

ICASSP 2023accepted

Knowledge distillation is a common method of model compression, which uses large models (teacher networks) to guide the training of small models (student networks). However, the student may find a hard time absorbing the knowledge from a sophisticated teacher due to the capacity and confidence gaps…

Cited by 0SourceScholar
2023

Learning Support and Trivial Prototypes for Interpretable Image Classification

ICCV 2023poster

Prototypical part network (ProtoPNet) methods have been designed to achieve interpretable classification by associating predictions with a set of training prototypes, which we refer to as trivial prototypes because they are trained to lie far from the classification boundary in the feature space. No…

Cited by 30PDFcodeScholar
2023

ShadowDiffusion: When Degradation Prior Meets Diffusion Model for Shadow Removal

CVPR 2023poster

Recent deep learning methods have achieved promising results in image shadow removal. However, their restored images still suffer from unsatisfactory boundary artifacts, due to the lack of degradation prior and the deficiency in modeling capacity. Our work addresses these issues by proposing a unifi…

2022

Differentially private multi-party data release for linear regression

UAI 2022poster

Differentially Private (DP) data release is a promising technique to disseminate data without compromising the privacy of data subjects. However the majority of prior work has focused on scenarios where a single party owns all the data. In this paper we focus on the multi-party setting, where differ…

Cited by 4SourcePDFScholar
2022

Label Leakage and Protection in Two-party Split Learning

ICLR 2022poster

Two-party split learning is a popular technique for learning a model across feature-partitioned data. In this work, we explore whether it is possible for one party to steal the private label information from the other party during split training, and whether there are methods that can protect agains…

2022

Novel Instance Mining with Pseudo-Margin Evaluation for Few-Shot Object Detection

ICASSP 2022accepted

Few-shot object detection (FSOD) enables the detector to recognize novel objects only using limited training samples, which could greatly alleviate model’s dependency on data. Most existing methods include two training stages, namely base training and fine-tuning. However, the unlabeled novel instan…

Cited by 0SourceScholar
2021

Nonuniform Negative Sampling and Log Odds Correction with Rare Events Data

NeurIPS 2021poster

We investigate the issue of parameter estimation with nonuniform negative sampling for imbalanced data. We first prove that, with imbalanced data, the available information about unknown parameters is only tied to the relatively small number of positive instances, which justifies the usage of negati…

Cited by 22SourcePDFScholar
2019

Prior-Aware Neural Network for Partially-Supervised Multi-Organ Segmentation

ICCV 2019accepted

Accurate multi-organ abdominal CT segmentation is essential to many clinical applications such as computer-aided intervention. As data annotation requires massive human labor from experienced radiologists, it is common that training data is usually partially-labeled. However, these background labels…

2018

Thoracic Disease Identification and Localization With Limited Supervision

CVPR 2018poster

Accurate identification and localization of abnormalities from radiology images play an integral part in clinical diagnosis and treatment planning. Building a highly accurate prediction model for these tasks usually requires a large number of images manually annotated with labels and finding sites o…

Cited by 455SourcePDFScholar
2018

Towards Neural Phrase-based Machine Translation

ICLR 2018poster

In this paper, we present Neural Phrase-based Machine Translation (NPMT). Our method explicitly models the phrase structures in output sequences using Sleep-WAke Networks (SWAN), a recently proposed segmentation-based sequence modeling method. To mitigate the monotonic alignment requirement of SWAN,…

2017

Q-LDA: Uncovering Latent Patterns in Text-based Sequential Decision Processes

NeurIPS 2017poster

In sequential decision making, it is often important and useful for end users to understand the underlying patterns or causes that lead to the corresponding decisions. However, typical deep reinforcement learning algorithms seldom provide such information due to their black-box nature. In this paper…

2017

Sequence Modeling via Segmentations

ICML 2017poster

Segmental structure is a common pattern in many types of sequences such as phrases in human languages. In this paper, we present a probabilistic model for sequences via their segmentations. The probability of a segmented sequence is calculated as the product of the probabilities of all its segments,…

2017

TopicRNN: A Recurrent Neural Network with Long-Range Semantic Dependency

ICLR 2017poster

In this paper, we propose TopicRNN, a recurrent neural network (RNN)-based language model designed to directly capture the global semantic meaning relating words in a document via latent topics. Because of their sequential nature, RNNs are good at capturing the local structure of a word sequence – b…

Cited by 310SourceScholar
2016

Deep Speech 2 : End-to-End Speech Recognition in English and Mandarin

ICML 2016poster

We show that an end-to-end deep learning approach can be used to recognize either English or Mandarin Chinese speech–two vastly different languages. Because it replaces entire pipelines of hand-engineered components with neural networks, end-to-end learning allows us to handle a diverse variety of s…