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Yongxin He

3 accepted papers

2026

FiSeR: Fine-Grained Source Representations for Cross-Domain AI Image Detection

ICML 2026poster

Real-world synthetic image detectors often generalize poorly under domain shift despite strong in-domain performance. Using unsupervised UMAP projections, we find that natural and synthetic features remain partially separable on unseen datasets, yet performance still drops, suggesting that the class…

Cited by 0SourceScholar
2025

DETree: DEtecting Human-AI Collaborative Texts via Tree-Structured Hierarchical Representation Learning

NeurIPS 2025poster

Detecting AI-involved text is essential for combating misinformation, plagiarism, and academic misconduct. However, AI text generation includes diverse collaborative processes (AI-written text edited by humans, human-written text edited by AI, and AI-generated text refined by other AI), where vario…

Cited by 0SourcecodeScholar
2024

DeTeCtive: Detecting AI-generated Text via Multi-Level Contrastive Learning

NeurIPS 2024poster

Current techniques for detecting AI-generated text are largely confined to manual feature crafting and supervised binary classification paradigms. These methodologies typically lead to performance bottlenecks and unsatisfactory generalizability. Consequently, these methods are often inapplicable for…