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Ruoxin Chen

8 accepted papers

2026

All Patches Matter, More Patches Better: Enhance AI-Generated Image Detection via Panoptic Patch Learning

ICLR 2026poster

The rapid proliferation of AI-generated images (AIGIs) highlights the pressing demand for generalizable detection methods. In this paper, we establish two key principles for AIGI detection task through systematic analysis: **(1) All Patches Matter**, since the uniform generation process ensures that…

Cited by 0SourceScholar
2026

Deep Residual Injection for Full-Spectrum Forensic Signal Perception in Multimodal Large Language Models

ICML 2026poster

Multimodal large language models (MLLMs) have been increasingly adopted in forensics for their robust semantic understanding. As AI-generated images become realistic, semantic-level inconsistencies alone are often insufficient for reliable detection. This motivates a critical question: *whether MLLM…

Cited by 0SourceScholar
2025

Dual Data Alignment Makes AI-Generated Image Detector Easier Generalizable

NeurIPS 2025spotlight

The rapid increase in AI-generated images (AIGIs) underscores the need for detection methods. Existing detectors are often trained on biased datasets, leading to overfitting on spurious correlations between non-causal image attributes and real/synthetic labels. While these biased features enhance p…

Cited by 0SourcecodeScholar
2025

Instruct Where the Model Fails: Generative Data Augmentation via Guided Self-contrastive Fine-tuning

AAAI 2025technical

Data augmentation is expected to bring about unseen features of training set, enhancing the model’s ability to generalize in situations where data is limited. Generative image models trained on large web-crawled datasets such as LAION are known to produce images with stereotypes and imperceptible bi…

Cited by 0SourcePDFScholar
2024

InterpGNN: Understand and Improve Generalization Ability of Transdutive GNNs through the Lens of Interplay between Train and Test Nodes

ICLR 2024poster

Transductive node prediction has been a popular learning setting in Graph Neural Networks (GNNs). It has been widely observed that the shortage of information flow between the distant nodes and intra-batch nodes (for large-scale graphs) often hurt the generalization of GNNs which overwhelmingly adop…

Cited by 1SourcePDFScholar
2023

Towards Practical Edge Inference Attacks Against Graph Neural Networks

ICASSP 2023accepted

Graph Neural Networks (GNNs) have demonstrated superior performance in numerous real-world applications. Despite their success, recent studies have shown that GNNs are vulnerable under edge inference attacks aimed to infer the connectivity of a given pair of nodes. However, existing methods primaril…

Cited by 0SourceScholar
2022

Input-Specific Robustness Certification for Randomized Smoothing

AAAI 2022technical

Although randomized smoothing has demonstrated high certified robustness and superior scalability to other certified defenses, the high computational overhead of the robustness certification bottlenecks the practical applicability, as it depends heavily on the large sample approximation for estimati…

2022

On Collective Robustness of Bagging Against Data Poisoning

ICML 2022spotlight

Bootstrap aggregating (bagging) is an effective ensemble protocol, which is believed can enhance robustness by its majority voting mechanism. Recent works further prove the sample-wise robustness certificates for certain forms of bagging (e.g. partition aggregation). Beyond these particular forms, i…