Search Results for author: YuJun Li

Found 8 papers, 0 papers with code

Copyleft for Alleviating AIGC Copyright Dilemma: What-if Analysis, Public Perception and Implications

no code implementations19 Feb 2024 Xinwei Guo, YuJun Li, Yafeng Peng, Xuetao Wei

As AIGC has impacted our society profoundly in the past years, ethical issues have received tremendous attention.

Privacy-Preserving Sequential Recommendation with Collaborative Confusion

no code implementations9 Jan 2024 Wei Wang, Yujie Lin, Pengjie Ren, Zhumin Chen, Tsunenori Mine, Jianli Zhao, Qiang Zhao, Moyan Zhang, Xianye Ben, YuJun Li

Unlike existing research, we capture collaborative signals of neighbor interaction sequences and directly inject indistinguishable items into the target sequence before the recommendation process begins, thereby increasing the perplexity of the target sequence.

Collaborative Filtering Federated Learning +2

Teach Large Language Models to Forget Privacy

no code implementations30 Dec 2023 Ran Yan, YuJun Li, Wenqian Li, Peihua Mai, Yan Pang, Yinchuan Li

Large Language Models (LLMs) have proven powerful, but the risk of privacy leakage remains a significant concern.

Privacy Preserving Zero-shot Generalization

Learning to Prove Trigonometric Identities

no code implementations14 Jul 2022 Zhou Liu, YuJun Li, Zhengying Liu, Lin Li, Zhenguo Li

We define the normalized form of trigonometric identities, design a set of rules for the proof and put forward a method which can generate theoretically infinite trigonometric identities.

Automated Theorem Proving Imitation Learning

GraphEye: A Novel Solution for Detecting Vulnerable Functions Based on Graph Attention Network

no code implementations5 Feb 2022 Li Zhou, Minhuan Huang, YuJun Li, Yuanping Nie, Jin Li, Yiwei Liu

GraphEye is originated from the observation that the code property graph of a non-vulnerable function naturally differs from the code property graph of a vulnerable function with the same functionality.

C++ code Graph Attention +1

Finding Second-Order Stationary Points in Nonconvex-Strongly-Concave Minimax Optimization

no code implementations10 Oct 2021 Luo Luo, YuJun Li, Cheng Chen

In this paper, we propose a novel approach for minimax optimization, called Minimax Cubic Newton (MCN), which could find an $\big(\varepsilon,\kappa^{1. 5}\sqrt{\rho\varepsilon}\,\big)$-second-order stationary point of $P({\bf x})$ with calling ${\mathcal O}\big(\kappa^{1. 5}\sqrt{\rho}\varepsilon^{-1. 5}\big)$ times of second-order oracles and $\tilde{\mathcal O}\big(\kappa^{2}\sqrt{\rho}\varepsilon^{-1. 5}\big)$ times of first-order oracles, where $\kappa$ is the condition number and $\rho$ is the Lipschitz continuous constant for the Hessian of $f({\bf x},{\bf y})$.

Optimal Designs of Gaussian Processes with Budgets for Hyperparameter Optimization

no code implementations1 Jan 2021 Yimin Huang, YuJun Li, Zhenguo Li, Zhihua Zhang

Moreover, comparisons between different initial designs with the same model show the advantage of the proposed optimal design.

Gaussian Processes Hyperparameter Optimization

Accelerated Value Iteration via Anderson Mixing

no code implementations27 Sep 2018 YuJun Li, Chengzhuo Ni, Guangzeng Xie, Wenhao Yang, Shuchang Zhou, Zhihua Zhang

A2VI is more efficient than the modified policy iteration, which is a classical approximate method for policy evaluation.

Atari Games Q-Learning +2

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