Tianyi Xu
2 indexed papers
Recent (6 mo)
2With code
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226
Top categories
NLP×1AI×1Crypto×1
Frequent co-authors
Research Timeline
2026
GradSentry: Gradient Spectral Entropy for Backdoor Sample Filtering in Large Language Model Fine-Tuning
GradSentry introduces a novel backdoor sample filtering method that uses the spectral entropy of individual sample gradients to detect poisoned data during LLM fine-tuning, proving effective even at high poison ratios.
EvoPool: Evolutionary Programmatic Annotation for Label-Efficient Specialized Supervision
EvoPool introduces an evolutionary multi-agent framework that efficiently generates high-quality, specialized supervision labels, significantly outperforming LLM annotation baselines across complex, label-scarce domains.
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Papers
cs.CLcs.AIRecentJun 1, 2026
EvoPool: Evolutionary Programmatic Annotation for Label-Efficient Specialized Supervision
EvoPool introduces an evolutionary multi-agent framework that efficiently generates high-quality, specialized supervision labels, significantly outperforming LLM annotation baselines across complex, l…
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cs.CRRecentMay 26, 2026