activity
20202026
most citedStructure Causal Models and LLMs Integration in Medical Visual Question Answering

6 citations · 21 across the 38 of their papers we have counts for

collaborators

38 papers

cs.AI2026

PGP-Clinical-TimeKAN: Prior-Guided Joint Probabilistic Forecasting of Clinical Trajectories

Weizhi Nie, Rihao Chang, Weijie Wang +1

Clinical deterioration unfolds through coupled, partially observed trajectories, not a single diagnostic label. We introduce PGP-Clinical-TimeKAN, a trajectory-first framework for…

cs.IR2026

Patient-Conditioned Dual Hypergraph Reasoning for Auditable Traditional Chinese Medicine Prescription Support

Weizhi Nie, Shaojin Bai, Weijie Wang +1

Traditional Chinese medicine (TCM) prescription support requires patient-specific reasoning from clinical narratives to syndromes, treatment principles, herbs, and doses. Direct la…

cs.LG2026

Liquid Latent State Dynamics for Interpretable Turbofan Degradation Modeling

Weizhi Nie, Weijie Wang, Yuting Su

Multivariate time-series models for prognostics are often evaluated by point prediction accuracy, yet their internal states rarely expose a coherent degradation process. We study l…

cs.LG2026

Prototype Latent World Model Replay for Class-Incremental Learning

Weizhi Nie, Hui Wang, Weijie Wang +1

Class-incremental learning requires a model to learn new classes while preserving decision regions for old ones. This is difficult when raw old samples are no longer available. We…

cs.CV2026

Hypergraph Normal World Models for Logical Visual Anomaly Detection

Weizhi Nie, Zibo Xu, Weijie Wang +1

Visual anomaly detection is often deployed with only normal training images. Most one-class detectors map test patches or features to a normal reference distribution. This works we…

cs.LG2026

Learning a Normal World Model for Few-Shot Boundary-Calibrated Abnormality Detection

Weizhi Nie, Weichao Liu, Weijie Wang +1

Abnormality detection in complex systems faces two practical barriers: abnormal labels are scarce, and binary labels do not quantify how far an event has departed from normal behav…

cs.LG2026

Phys-JEPA: Physics-Informed Latent World Models for Multivariate Time-Series Forecasting

Weizhi Nie, Weichao Liu, Honglin Guo +1

Multivariate forecasting in physical systems requires models that predict coupled temporal variables while preserving meaningful state evolution. Deep forecasters can fit temporal…

cs.CV2026

Ask4VG: Risk-Aware Question Selection for Reducing Prior-Driven Answers in Medical VQA

Xiaorong Zhu, Qiang Li, Zibo Xu +2

Medical visual question answering requires models to ground their responses in image evidence, because visually unsupported answers can mislead downstream interpretation. However,…

cs.CV2026

NTIRE 2026 3D Restoration and Reconstruction in Real-world Adverse Conditions: RealX3D Challenge Results

Shuhong Liu, Chenyu Bao, Ziteng Cui +103

This paper presents a comprehensive review of the NTIRE 2026 3D Restoration and Reconstruction (3DRR) Challenge, detailing the proposed methods and results. The challenge seeks to…

cs.LG2026

Clinically Interpretable Sepsis Early Warning via LLM-Guided Simulation of Temporal Physiological Dynamics

Weizhi Nie, Zhen Qu, Weijie Wang +4

Timely and interpretable early warning of sepsis remains a major clinical challenge due to the complex temporal dynamics of physiological deterioration. Traditional data-driven mod…

cs.CV2026

Dual Causal Inference: Integrating Backdoor Adjustment and Instrumental Variable Learning for Medical VQA

Zibo Xu, Qiang Li, Ke Lu +3

Medical Visual Question Answering (MedVQA) aims to generate clinically reliable answers conditioned on complex medical images and questions. However, existing methods often overfit…

cs.LG2026

Causal-Transformer with Adaptive Mutation-Locking for Early Prediction of Acute Kidney Injury

Weizhi Nie, Haolin Chen

Accurate early prediction of Acute Kidney Injury (AKI) is critical for timely clinical intervention. However, existing deep learning models struggle with irregularly sampled data a…

cs.LG2026

CSRA: Controlled Spectral Residual Augmentation for Robust Sepsis Prediction

Honglin Guo, Rihao Chang, He Jiao +3

Accurate prediction of future risk and disease progression in sepsis is clinically important for early warning and timely intervention in intensive care. However, short-window seps…

cs.CV2026

Unlabeled Cross-Center Automatic Analysis for TAAD: An Integrated Framework from Segmentation to Clinical Features

Mengdi Liu, Qiang Li, Weizhi Nie +2

Type A Aortic Dissection (TAAD) is a life-threatening cardiovascular emergency that demands rapid and precise preoperative evaluation. While key anatomical and pathological feature…

cs.CV2026

CIV-DG: Conditional Instrumental Variables for Domain Generalization in Medical Imaging

Shaojin Bai, Yuting Su, Weizhi Nie

Cross-site generalizability in medical AI is fundamentally compromised by selection bias, a structural mechanism where patient demographics (e.g., age, severity) non-randomly dicta…

cs.CV2026

Mask-Guided Attention Regulation for Anatomically Consistent Counterfactual CXR Synthesis

Zichun Zhang, Weizhi Nie, Honglin Guo +1

Counterfactual generation for chest X-rays (CXR) aims to simulate plausible pathological changes while preserving patient-specific anatomy. However, diffusion-based editing methods…

cs.CV2026

Learning to Trim: End-to-End Causal Graph Pruning with Dynamic Anatomical Feature Banks for Medical VQA

Zibo Xu, Qiang Li, Weizhi Nie +1

Medical Visual Question Answering (MedVQA) models often exhibit limited generalization due to reliance on dataset-specific correlations, such as recurring anatomical patterns or qu…

cs.LG2025★ 1 cited

Organ-Agents: Virtual Human Physiology Simulator via LLMs

Rihao Chang, He Jiao, Weizhi Nie +13

Recent advances in large language models (LLMs) have enabled new possibilities in simulating complex physiological systems. We introduce Organ-Agents, a multi-agent framework that…

cs.CV2025★ 6 cited

Structure Causal Models and LLMs Integration in Medical Visual Question Answering

Zibo Xu, Qiang Li, Weizhi Nie +2

Medical Visual Question Answering (MedVQA) aims to answer medical questions according to medical images. However, the complexity of medical data leads to confounders that are diffi…

cs.CV2025

FreeInsert: Disentangled Text-Guided Object Insertion in 3D Gaussian Scene without Spatial Priors

Chenxi Li, Weijie Wang, Qiang Li +3

Text-driven object insertion in 3D scenes is an emerging task that enables intuitive scene editing through natural language. However, existing 2D editing-based methods often rely o…

cs.CV2025

Causal Disentanglement for Robust Long-tail Medical Image Generation

Weizhi Nie, Zichun Zhang, Weijie Wang +3

Counterfactual medical image generation effectively addresses data scarcity and enhances the interpretability of medical images. However, due to the complex and diverse pathologica…

cs.CV2025

TRCE: Towards Reliable Malicious Concept Erasure in Text-to-Image Diffusion Models

Ruidong Chen, Honglin Guo, Lanjun Wang +3

Recent advances in text-to-image diffusion models enable photorealistic image generation, but they also risk producing malicious content, such as NSFW images. To mitigate risk, con…

cs.CV2023

CAT-DM: Controllable Accelerated Virtual Try-on with Diffusion Model

Jianhao Zeng, Dan Song, Weizhi Nie +3

Generative Adversarial Networks (GANs) dominate the research field in image-based virtual try-on, but have not resolved problems such as unnatural deformation of garments and the b…

cs.CV2023★ 1 cited

MV-CLIP: Multi-View CLIP for Zero-shot 3D Shape Recognition

Dan Song, Xinwei Fu, Ning Liu +5

Large-scale pre-trained models have demonstrated impressive performance in vision and language tasks within open-world scenarios. Due to the lack of comparable pre-trained models f…