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cs.CR2025
SilentLedger: Privacy-Preserving Auditing for Blockchains with Complete Non-Interactivity
Zihan Liu, Xiaohu Wang, Chao Lin +3
Privacy-preserving blockchain systems are essential for protecting transaction data, yet they must also provide auditability that enables auditors to recover participant identities…
cs.CL2025
ClusterUCB: Efficient Gradient-Based Data Selection for Targeted Fine-Tuning of LLMs
Zige Wang, Qi Zhu, Fei Mi +3
Gradient-based data influence approximation has been leveraged to select useful data samples in the supervised fine-tuning of large language models. However, the computation of gra…