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Wenhui Zhu

9 accepted papers

2026

$\textit{S}$-SPPO: Semantic-Calibrated Self-Play Preference Optimization

ICML 2026poster

Aligning Large Language Models (LLMs) with human preferences is often formulated via Direct Preference Optimization (DPO). However, the standard Bradley-Terry instantiation of DPO is limited in modeling common departures from transitivity in human preferences. To address this, recent work has introd…

Cited by 0SourceScholar
2026

LLaDA-MedV: Exploring Large Language Diffusion Models for Biomedical Image Understanding

CVPR 2026

Autoregressive models (ARMs) have long dominated the landscape of biomedical vision-language models (VLMs). Recently, masked diffusion models such as LLaDA have emerged as promising alternatives, yet their application in the biomedical domain remains largely underexplored. To bridge this gap, we int

Cited by 0SourcecodeScholar
2025

Cracking Instance Jigsaw Puzzles: An Alternative to Multiple Instance Learning for Whole Slide Image Analysis

ICCV 2025poster

While multiple instance learning (MIL) has shown to be a promising approach for histopathological whole slide image (WSI) analysis, its reliance on permutation invariance significantly limits its capacity to effectively uncover semantic correlations between instances within WSIs. Based on our empiri…

Cited by 0SourcePDFScholar
2025

FIC-TSC: Learning Time Series Classification with Fisher Information Constraint

ICML 2025poster

Analyzing time series data is crucial to a wide spectrum of applications, including economics, online marketplaces, and human healthcare. In particular, time series classification plays an indispensable role in segmenting different phases in stock markets, predicting customer behavior, and classifyi…

Cited by 0SourcePDFScholar
2025

How Effective Can Dropout Be in Multiple Instance Learning ?

ICML 2025poster

Multiple Instance Learning (MIL) is a popular weakly-supervised method for various applications, with a particular interest in histological whole slide image (WSI) classification. Due to the gigapixel resolution of WSI, applications of MIL in WSI typically necessitate a two-stage training scheme: fi…

2025

Multimodal Variational Autoencoder: A Barycentric View

AAAI 2025technical

Multiple signal modalities, such as vision and sounds, are naturally present in real-world phenomena. Recently, there has been growing interest in learning generative models, in particular variational autoencoder (VAE), to for multimodal representation learning especially in the case of missing moda…

Cited by 0SourcePDFScholar
2025

Sequence Complementor: Complementing Transformers for Time Series Forecasting with Learnable Sequences

AAAI 2025technical

Since its introduction, the transformer has shifted the development trajectory away from traditional models (e.g., RNN, MLP) in time series forecasting, which is attributed to its ability to capture global dependencies within temporal tokens. Follow-up studies have largely involved altering the toke…

Cited by 0SourcePDFScholar
2024

TimeMIL: Advancing Multivariate Time Series Classification via a Time-aware Multiple Instance Learning

ICML 2024poster

Deep neural networks, including transformers and convolutional neural networks (CNNs), have significantly improved multivariate time series classification (MTSC). However, these methods often rely on supervised learning, which does not fully account for the sparsity and locality of patterns in time…

2022

Causal Alignment Based Fault Root Causes Localization for Wireless Network

ICASSP 2022accepted

Localizing fault root causes is challenging but critical for wireless network operation and maintenance. Though supervised methods have shown promising results in training samples, most of the existing approaches assume that the training and the testing samples are independent and identical distribu…

Cited by 0SourceScholar