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Xu-yao Zhang

26 accepted papers

2026

An Open-Ended Benchmark and Formal Framework for Adjuvant Research with MLLM

ICLR 2026poster

Adjuvants play a critical role in modulating immune responses and are central to the development of vaccines and immunotherapies. Yet progress in this field is constrained by data scarcity and incomplete understanding of mechanisms of action, which limit the transition from experience-based design t…

Cited by 0SourceScholar
2026

Context Tokens are Anchors: Understanding the Repetition Curse in Diffusion MLLMs from an Information Flow Perspective

ICLR 2026poster

Recent diffusion-based Multimodal Large Language Models (dMLLMs) suffer from high inference latency and therefore rely on caching techniques to accelerate decoding. However, the application of cache mechanisms often introduces undesirable repetitive text generation, a phenomenon we term the Repeat C…

Cited by 0SourcecodeScholar
2026

Fine-Grained Post-Training Quantization for Large Vision Language Models with Quantization-Aware Integrated Gradients

CVPR 2026

Large Vision Language Models (LVLMs) have achieved remarkable success in a wide range of downstream tasks that require multimodal interaction, but their powerful capabilities come with substantial computational and memory overhead, which hinders practical deployment. Among numerous acceleration tech

Cited by 0SourcecodeScholar
2026

Multimodal Continual Instruction Tuning with Dynamic Gradient Guidance

CVPR 2026

Multimodal continual instruction tuning enables multimodal large language models to sequentially adapt to new tasks while building upon previously acquired knowledge. However, this continual learning paradigm faces the significant challenge of catastrophic forgetting, where learning new tasks leads

Cited by 0SourcecodeScholar
2025

Achieving binary weight and activation for LLMs using Post-Training Quantization

ACL 2025finding

Quantizing large language models (LLMs) to 1-bit precision significantly reduces computational costs, but existing quantization techniques suffer from noticeable performance degradation when using weight and activation precisions below 4 bits (W4A4). In this paper, we propose a post-training quantiz…

2025

Federated Continual Instruction Tuning

ICCV 2025poster

A vast amount of instruction tuning data is crucial for the impressive performance of Large Multimodal Models (LMMs), but the associated computational costs and data collection demands during supervised fine-tuning make it impractical for most researchers. Federated learning (FL) has the potential t…

2025

HiDe-LLaVA: Hierarchical Decoupling for Continual Instruction Tuning of Multimodal Large Language Model

ACL 2025long

Instruction tuning is widely used to enhance a pre-trained Multimodal Large Language Model (MLLM) to understand and follow human instructions by training it on a curated set of task-specific dataset. However, it is infeasible to collect all possible instruction datasets simultaneously in real-world…

Cited by 0SourcePDFScholar
2025

Local-Prompt: Extensible Local Prompts for Few-Shot Out-of-Distribution Detection

ICLR 2025poster

Out-of-Distribution (OOD) detection, aiming to distinguish outliers from known categories, has gained prominence in practical scenarios. Recently, the advent of vision-language models (VLM) has heightened interest in enhancing OOD detection for VLM through few-shot tuning. However, existing methods…

Cited by 4SourcePDFScholar
2025

ModalPrompt: Towards Efficient Multimodal Continual Instruction Tuning with Dual-Modality Guided Prompt

EMNLP 2025

Large Multimodal Models (LMMs) exhibit remarkable multi-tasking ability by learning mixed instruction datasets. However, novel tasks would be encountered sequentially in dynamic world, which urges for equipping LMMs with multimodal continual instruction learning (MCIT) ability especially for diverse

2025

Recoverable Compression: A Multimodal Vision Token Recovery Mechanism Guided by Text Information

AAAI 2025technical

With the advancement of large-scale language modeling techniques, large multimodal models combining visual encoders with large language models have demonstrated exceptional performance in various visual tasks. Most of the current large multimodal models achieve this by mapping visual features obtain…

2024

Happy: A Debiased Learning Framework for Continual Generalized Category Discovery

NeurIPS 2024poster

Constantly discovering novel concepts is crucial in evolving environments. This paper explores the underexplored task of Continual Generalized Category Discovery (C-GCD), which aims to incrementally discover new classes from *unlabeled* data while maintaining the ability to recognize previously lear…

2024

Prototype Calibration with Synthesized Samples for Zero-Shot Chinese Character Recognition

ICASSP 2024accepted

Zero-shot Chinese character recognition aims to recognize unseen characters that have never appeared in training. Recently, many methods learn a cross-modal alignment between character samples and auxiliary semantic data like glyph templates in training, and directly employ it to recognize unseen ch…

Cited by 0SourceScholar
2024

Unified Entropy Optimization for Open-Set Test-Time Adaptation

CVPR 2024poster

Test-time adaptation (TTA) aims at adapting a model pre-trained on the labeled source domain to the unlabeled target domain. Existing methods usually focus on improving TTA performance under covariate shifts while neglecting semantic shifts. In this paper we delve into a realistic open-set TTA setti…

2023

OpenMix: Exploring Outlier Samples for Misclassification Detection

CVPR 2023highlight

Reliable confidence estimation for deep neural classifiers is a challenging yet fundamental requirement in high-stakes applications. Unfortunately, modern deep neural networks are often overconfident for their erroneous predictions. In this work, we exploit the easily available outlier samples, i.e.…

2022

Rethinking Confidence Calibration for Failure Prediction

ECCV 2022poster

"Reliable confidence estimation for the predictions is important in many safety-critical applications. However, modern deep neural networks are often overconfident for their incorrect predictions. Recently, many calibration methods have been proposed to alleviate the overconfidence problem. With cal…

2021

Graph-to-Graph: Towards Accurate and Interpretable Online Handwritten Mathematical Expression Recognition

AAAI 2021technical

Recent handwritten mathematical expression recognition (HMER) approaches treat the problem as an image-to-markup generation task where the handwritten formula is translated into a sequence (e.g. LaTeX). The encoder-decoder framework is widely used to solve this image-to-sequence problem. However, (i…

Cited by 46SourcePDFScholar
2021

Prototype Augmentation and Self-Supervision for Incremental Learning

CVPR 2021poster

Despite the impressive performance in many individual tasks, deep neural networks suffer from catastrophic forgetting when learning new tasks incrementally. Recently, various incremental learning methods have been proposed, and some approaches achieved acceptable performance relying on stored data o…

Cited by 486PDFScholar
2021

Proxy Graph Matching with Proximal Matching Networks

AAAI 2021technical

Estimating feature point correspondence is a common technique in computer vision. A line of recent data-driven approaches utilizing the graph neural networks improved the matching accuracy by a large margin. However, these learning-based methods require a lot of labeled training data, which are expe…

Cited by 8SourcePDFScholar
2019

TextDragon: An End-to-End Framework for Arbitrary Shaped Text Spotting

ICCV 2019poster

Most existing text spotting methods either focus on horizontal/oriented texts or perform arbitrary shaped text spotting with character-level annotations. In this paper, we propose a novel text spotting framework to detect and recognize text of arbitrary shapes in an end-to-end manner, using only wor…

Cited by 255PDFScholar
2018

Robust Classification With Convolutional Prototype Learning

CVPR 2018poster

Convolutional neural networks (CNNs) have been widely used for image classification. Despite its high accuracies, CNN has been shown to be easily fooled by some adversarial examples, indicating that CNN is not robust enough for pattern classification. In this paper, we argue that the lack of robustn…