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Zhongwei Wan

30 accepted papers

2026

ATTS: Asynchronous Test-Time Scaling via Conformal Prediction

ICLR 2026poster

Large language models (LLMs) benefit from test-time scaling but are often hampered by high inference latency. Speculative decoding is a natural way to accelerate the scaling process; however, scaling along both the parallel and sequential dimensions poses significant challenges, including substantia…

Cited by 0SourcecodeScholar
2026

MedREK: Retrieval-Based Editing for Medical LLMs with Key-Aware Prompts

ICML 2026poster

LLMs hold great promise for healthcare applications, but fast-changing medical knowledge can quickly make their outputs outdated or inaccurate, limiting use in high-stakes settings. Model editing can update LLMs without full retraining, but parameter-based methods often break locality and are risky …

Cited by 0SourceScholar
2026

Plan Then Action: High-Level Planning Guidance Reinforcement Learning for LLM Reasoning

ICML 2026poster

Large language models (LLMs) demonstrate strong reasoning abilities via Chain-of-Thought (CoT), but their token-level generation encourages local decisions and lacks global planning, often leading to redundant or inaccurate reasoning. Existing methods, such as tree-based search and reinforcement lea…

Cited by 0SourceScholar
2026

QuantVLA: Scale-Calibrated Post-Training Quantization for Vision-Language-Action Models

CVPR 2026

Vision-language-action (VLA) models unify perception, language, and control for embodied agents but face significant challenges in practical deployment due to rapidly increasing compute and memory demands, especially as models scale to longer horizons and larger backbones. To address these bottlenec

Cited by 0SourcecodeScholar
2026

SWINGARENA: Adversarial Programming Arena for Long-context GitHub Issue Solving

ICLR 2026oral

We present \textsc{SwingArena}, a adversarial evaluation framework for Large Language Models (LLMs) that closely mirrors real-world software development workflows. Unlike traditional static benchmarks, \textsc{SwingArena} models the collaborative process of software iteration by pairing LLMs as \tex…

Cited by 0SourcecodeScholar
2026

Swordsman: Entropy-Driven Adaptive Block Partition for Efficient Diffusion Language Models

ICML 2026poster

Block-wise decoding effectively improves the inference speed and quality in diffusion language models (DLMs) by combining inter-block sequential denoising and intra-block parallel unmasking. However, existing block-wise decoding methods typically partition blocks in a rigid and fixed manner, which i…

Cited by 0SourceScholar
2025

$\text{D}_{2}\text{O}$: Dynamic Discriminative Operations for Efficient Long-Context Inference of Large Language Models

ICLR 2025poster

Efficient generative inference in Large Language Models (LLMs) is impeded by the growing memory demands of Key-Value (KV) cache, especially for longer sequences. Traditional KV Cache eviction strategies, which discard less critical KV-pairs based on attention scores, often degrade generation quality…

Cited by 0SourcePDFScholar
2025

Argus: Benchmarking and Enhancing Vision-Language Models for 3D Radiology Report Generation

ACL 2025finding

Automatic radiology report generation holds significant potential to streamline the labor-intensive process of report writing by radiologists, particularly for 3D radiographs such as CT scans. While CT scans are critical for clinical diagnostics, they remain less explored compared to 2D radiographs.…

Cited by 0SourcePDFScholar
2025

Benchmarking Large Language Models Under Data Contamination: A Survey from Static to Dynamic Evaluation

EMNLP 2025

In the era of evaluating large language models (LLMs), data contamination has become an increasingly prominent concern. To address this risk, LLM benchmarking has evolved from a *static* to a *dynamic* paradigm. In this work, we conduct an in-depth analysis of existing *static* and *dynamic* benchma

2025

Can Medical Vision-Language Pre-training Succeed with Purely Synthetic Data?

ACL 2025finding

Medical Vision-Language Pre-training (MedVLP) has made significant progress in enabling zero-shot tasks for medical image understanding. However, training MedVLP models typically requires large-scale datasets with paired, high-quality image-text data, which are scarce in the medical domain. Recent a…

2025

Can We Trust AI Doctors? A Survey of Medical Hallucination in Large Language and Large Vision-Language Models

ACL 2025finding

Hallucination has emerged as a critical challenge for large language models (LLMs) and large vision-language models (LVLMs), particularly in high-stakes medical applications. Despite its significance, dedicated research on medical hallucination remains unexplored. In this survey, we first provide a…

Cited by 0SourcePDFScholar
2025

Enhancing Text-to-Image Diffusion Transformer via Split-Text Conditioning

NeurIPS 2025poster

Current text-to-image diffusion generation typically employs complete-text conditioning. Due to the intricate syntax, diffusion transformers (DiTs) inherently suffer from a comprehension defect of complete-text captions. One-fly complete-text input either overlooks critical semantic details or cause…

Cited by 0SourceScholar
2025

Evolver: Chain-of-Evolution Prompting to Boost Large Multimodal Models for Hateful Meme Detection

COLING 2025main

Hateful memes continuously evolve as new ones emerge by blending progressive cultural ideas, rendering existing methods that rely on extensive training obsolete or ineffective. In this work, we propose Evolver, which incorporates Large Multimodal Models (LMMs) via Chain-of-Evolution (CoE) Prompting,…

2025

Knowledge-enhanced Multimodal ECG Representation Learning with Arbitrary-Lead Inputs

EMNLP 2025

Recent advancements in multimodal representation learning for electrocardiogram (ECG) have moved onto learning representations by aligning ECG signals with their paired free-text reports. However, current methods often result in suboptimal alignment of ECG signals with their corresponding text repor

2025

MEDA: Dynamic KV Cache Allocation for Efficient Multimodal Long-Context Inference

NAACL 2025long

Long-context Multimodal Large Language Models (MLLMs) that incorporate long text-image and text-video modalities, demand substantial computational resources as their multimodal Key-Value (KV) cache grows with increasing input lengths, challenging memory and time efficiency. For multimodal scenarios,…

2025

MEIT: Multimodal Electrocardiogram Instruction Tuning on Large Language Models for Report Generation

ACL 2025finding

Electrocardiogram (ECG) is the primary non-invasive diagnostic tool for monitoring cardiac conditions and is crucial in assisting clinicians. Recent studies have concentrated on classifying cardiac conditions using ECG data but have overlooked ECG report generation, which is time-consuming and requi…

2025

ParallelComp: Parallel Long-Context Compressor for Length Extrapolation

ICML 2025poster

Extrapolating ultra-long contexts (text length >128K) remains a major challenge for large language models (LLMs), as most training-free extrapolation methods are not only severely limited by memory bottlenecks, but also suffer from the attention sink, which restricts their scalability and effectiven…

2025

SRPO: Enhancing Multimodal LLM Reasoning via Reflection-Aware Reinforcement Learning

NeurIPS 2025poster

Multimodal large language models (MLLMs) have shown promising capabilities in reasoning tasks, yet still struggle significantly with complex problems requiring explicit self-reflection and self-correction, especially compared to their unimodal text-based counterparts. Existing reflection methods are…

Cited by 0SourceScholar
2025

SVD-LLM V2: Optimizing Singular Value Truncation for Large Language Model Compression

NAACL 2025long

Despite significant advancements, the practical deployment of Large Language Models (LLMs) is often hampered by their immense sizes, highlighting the need for effective compression techniques. Singular Value Decomposition (SVD) emerges as a promising method for compressing LLMs. However, existing SV…

2025

SVD-LLM: Truncation-aware Singular Value Decomposition for Large Language Model Compression

ICLR 2025poster

The advancements in Large Language Models (LLMs) have been hindered by their substantial sizes, which necessitates LLM compression methods for practical deployment. Singular Value Decomposition (SVD) offers a promising solution for LLM compression. However, state-of-the-art SVD-based LLM compression…

2025

UNComp: Can Matrix Entropy Uncover Sparsity? — A Compressor Design from an Uncertainty-Aware Perspective

EMNLP 2025

Deploying large language models (LLMs) for long-context inference remains challenging due to their substantial memory and computational demands. While techniques such as Key-Value (KV) cache compression are designed to reduce memory usage, they often neglect the structured sparsity inherent in the r

2024

ETP: Learning Transferable ECG Representations via ECG-Text Pre-Training

ICASSP 2024accepted

In the domain of cardiovascular healthcare, the Electrocardiogram (ECG) serves as a critical, non-invasive diagnostic tool. Although recent strides in self-supervised learning (SSL) have been promising for ECG representation learning, these techniques often require annotated samples and struggle wit…

Cited by 0SourceScholar
2024

LOOK-M: Look-Once Optimization in KV Cache for Efficient Multimodal Long-Context Inference

EMNLP 2024finding

Long-context Multimodal Large Language Models (MLLMs) demand substantial computational resources for inference as the growth of their multimodal Key-Value (KV) cache, in response to increasing input lengths, challenges memory and time efficiency. Unlike single-modality LLMs that manage only textual…

2024

NeuroClips: Towards High-fidelity and Smooth fMRI-to-Video Reconstruction

NeurIPS 2024oral

Reconstruction of static visual stimuli from non-invasion brain activity fMRI achieves great success, owning to advanced deep learning models such as CLIP and Stable Diffusion. However, the research on fMRI-to-video reconstruction remains limited since decoding the spatiotemporal perception of conti…

2024

Scaling Laws with Vocabulary: Larger Models Deserve Larger Vocabularies

NeurIPS 2024poster

Research on scaling large language models (LLMs) has primarily focused on model parameters and training data size, overlooking the role of vocabulary size. We investigate how vocabulary size impacts LLM scaling laws by training models ranging from 33M to 3B parameters on up to 500B characters with v…

2024

V-PETL Bench: A Unified Visual Parameter-Efficient Transfer Learning Benchmark

NeurIPS 2024poster

Parameter-efficient transfer learning (PETL) methods show promise in adapting a pre-trained model to various downstream tasks while training only a few parameters. In the computer vision (CV) domain, numerous PETL algorithms have been proposed, but their direct employment or comparison remains incon…

Cited by 12SourcePDFScholar
2024

Zero-Shot ECG Classification with Multimodal Learning and Test-time Clinical Knowledge Enhancement

ICML 2024poster

Electrocardiograms (ECGs) are non-invasive diagnostic tools crucial for detecting cardiac arrhythmic diseases in clinical practice. While ECG Self-supervised Learning (eSSL) methods show promise in representation learning from unannotated ECG data, they often overlook the clinical knowledge that can…

2023

Med-UniC: Unifying Cross-Lingual Medical Vision-Language Pre-Training by Diminishing Bias

NeurIPS 2023poster

The scarcity of data presents a critical obstacle to the efficacy of medical vision-language pre-training (VLP). A potential solution lies in the combination of datasets from various language communities. Nevertheless, the main challenge stems from the complexity of integrating diverse syntax and se…

2022

G-MAP: General Memory-Augmented Pre-trained Language Model for Domain Tasks

EMNLP 2022main

General pre-trained language models (PLMs), such as BERT, have achieved remarkable performance on various NLP tasks. Recently, domain-specific PLMs have been proposed to boost the task performance of specific domains (e.g., biomedical and computer science) by continuing to pre-train general PLMs wit…