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Yehong Zhang

10 accepted papers

2026

SecP-Tuning: Efficient Privacy-Preserving Prompt Tuning for Large Language Models via MPC

ICLR 2026poster

Large Language Models (LLMs) have revolutionized numerous fields, yet their adaptation to specialized tasks in privacy-sensitive domains such as healthcare and finance remains constrained due to the scarcity of accessible training data caused by stringent privacy requirements. Secure Multi-party Com…

Cited by 0SourceScholar
2025

CENTAUR: Bridging the Impossible Trinity of Privacy, Efficiency, and Performance in Privacy-Preserving Transformer Inference

ACL 2025long

With the growing deployment of pre-trained models like Transformers on cloud platforms, privacy concerns about model parameters and inference data are intensifying. Existing Privacy-Preserving Transformer Inference (PPTI) frameworks face the “impossible trinity” of balancing privacy, efficiency, and…

Cited by 0SourcePDFScholar
2025

COPR: Continual Human Preference Learning via Optimal Policy Regularization

ACL 2025finding

Reinforcement Learning from Human Feedback (RLHF) is effective for aligning Large Language Models (LLMs) with human preferences. However, RLHF’s complex process limits its ability to continually learn human feedback, making it impractical for real-world applications where the deployed model continuo…

Cited by 0SourcePDFScholar
2024

EncryIP: A Practical Encryption-Based Framework for Model Intellectual Property Protection

AAAI 2024technical

In the rapidly growing digital economy, protecting intellectual property (IP) associated with digital products has become increasingly important. Within this context, machine learning (ML) models, being highly valuable digital assets, have gained significant attention for IP protection. This paper…

Cited by 1SourcePDFScholar
2024

Meta-Learning via PAC-Bayesian with Data-Dependent Prior: Generalization Bounds from Local Entropy

IJCAI 2024poster

Meta-learning accelerates the learning process on unseen learning tasks by acquiring prior knowledge through previous related tasks. The PAC-Bayesian theory provides a theoretical framework to analyze the generalization of meta-learning to unseen tasks. However, previous works still encounter two no…

Cited by 0SourcePDFScholar
2023

Incentives in Private Collaborative Machine Learning

NeurIPS 2023poster

Collaborative machine learning involves training models on data from multiple parties but must incentivize their participation. Existing data valuation methods fairly value and reward each party based on shared data or model parameters but neglect the privacy risks involved. To address this, we int…

Cited by 7SourcePDFScholar
2023

Practical privacy-preserving Gaussian process regression via secret sharing

UAI 2023poster

Gaussian process regression (GPR) is a non-parametric model that has been used in many real-world applications that involve sensitive personal data (e.g., healthcare, finance, etc.) from multiple data owners. To fully and securely exploit the value of different data sources, this paper proposes a pr…

Cited by 10SourcePDFScholar
2021

Collaborative Bayesian Optimization with Fair Regret

ICML 2021spotlight

Bayesian optimization (BO) is a popular tool for optimizing complex and costly-to-evaluate black-box objective functions. To further reduce the number of function evaluations, any party performing BO may be interested to collaborate with others to optimize the same objective function concurrently. T…

Cited by 29SourcePDFScholar
2020

Collaborative Machine Learning with Incentive-Aware Model Rewards

ICML 2020poster

Collaborative machine learning (ML) is an appealing paradigm to build high-quality ML models by training on the aggregated data from many parties. However, these parties are only willing to share their data when given enough incentives, such as a guaranteed fair reward based on their contributions.…

Cited by 183SourcePDFScholar