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The growing number of parameters and computational demands of large language models (LLMs) present significant challenges for their efficient deployment. Recently, there is an increasing interest in quantizing weights to extremely low…

机器学习 · 计算机科学 2025-02-18 Cheng Zhang , Jeffrey T. H. Wong , Can Xiao , George A. Constantinides , Yiren Zhao

Reinforcement learning (RL) is a key post-pretraining step for aligning large language models (LLMs) with complex tasks and human preferences. While it is often assumed that RL fine-tuning requires updating most of a model's parameters, we…

机器学习 · 计算机科学 2025-07-30 Andrii Balashov

Language models trained on web-scale corpora risk memorizing and exposing sensitive information, prompting the need for effective machine unlearning. Prior methods mainly focus on input queries to suppress sensitive outputs, yet this often…

人工智能 · 计算机科学 2025-10-01 Junbeom Kim , Kyuyoung Kim , Jihoon Tack , Dongha Lim , Jinwoo Shin

Large Language Models (LLMs) can memorize sensitive information, raising concerns about potential misuse. LLM Unlearning, a post-hoc approach to remove this information from trained LLMs, offers a promising solution to mitigate these risks.…

计算与语言 · 计算机科学 2024-09-19 Tianle Gu , Kexin Huang , Ruilin Luo , Yuanqi Yao , Yujiu Yang , Yan Teng , Yingchun Wang

Safety backdoor attacks in large language models (LLMs) enable the stealthy triggering of unsafe behaviors while evading detection during normal interactions. The high dimensionality of potential triggers in the token space and the diverse…

密码学与安全 · 计算机科学 2024-06-26 Yi Zeng , Weiyu Sun , Tran Ngoc Huynh , Dawn Song , Bo Li , Ruoxi Jia

Reward modeling, crucial for aligning large language models (LLMs) with human preferences, is often bottlenecked by the high cost of preference data. Existing textual data synthesis methods are computationally expensive. We propose a novel…

计算与语言 · 计算机科学 2025-10-15 Leitian Tao , Xuefeng Du , Sharon Li

Federated Learning (FL) facilitates decentralized machine learning model training, preserving data privacy, lowering communication costs, and boosting model performance through diversified data sources. Yet, FL faces vulnerabilities such as…

机器学习 · 计算机科学 2023-09-11 Torsten Krauß , Alexandra Dmitrienko

Large language models (LLMs) excel in various tasks but remain vulnerable to jailbreak attacks, where adversaries manipulate prompts to generate harmful outputs. Examining jailbreak prompts helps uncover the shortcomings of LLMs. However,…

计算与语言 · 计算机科学 2024-12-18 Weixiong Zheng , Peijian Zeng , Yiwei Li , Hongyan Wu , Nankai Lin , Junhao Chen , Aimin Yang , Yongmei Zhou

Adversarial Malware Generation (AMG), the generation of adversarial malware variants to strengthen Deep Learning (DL)-based malware detectors has emerged as a crucial tool in the development of proactive cyberdefense. However, the majority…

密码学与安全 · 计算机科学 2024-02-06 Brian Etter , James Lee Hu , Mohammedreza Ebrahimi , Weifeng Li , Xin Li , Hsinchun Chen

Recent work has shown that adversarial Windows malware samples - referred to as adversarial EXEmples in this paper - can bypass machine learning-based detection relying on static code analysis by perturbing relatively few input bytes. To…

密码学与安全 · 计算机科学 2021-06-29 Luca Demetrio , Scott E. Coull , Battista Biggio , Giovanni Lagorio , Alessandro Armando , Fabio Roli

Model pruning, i.e., removing a subset of model weights, has become a prominent approach to reducing the memory footprint of large language models (LLMs) during inference. Notably, popular inference engines, such as vLLM, enable users to…

机器学习 · 计算机科学 2026-04-07 Kazuki Egashira , Robin Staab , Thibaud Gloaguen , Mark Vero , Martin Vechev

The ability to learn new concepts with small amounts of data is a crucial aspect of intelligence that has proven challenging for deep learning methods. Meta-learning for few-shot learning offers a potential solution to this problem: by…

机器学习 · 统计学 2020-03-05 Yusuke Hayashi , Taiji Suzuki

This paper explores the threat detection for general Social Engineering (SE) attack using Machine Learning (ML) techniques, rather than focusing on or limited to a specific SE attack type, e.g. email phishing. Firstly, this paper processes…

密码学与安全 · 计算机科学 2022-03-18 Zuoguang Wang , Yimo Ren , Hongsong Zhu , Limin Sun

Machine learning models are prone to memorizing sensitive data, making them vulnerable to membership inference attacks in which an adversary aims to guess if an input sample was used to train the model. In this paper, we show that prior…

密码学与安全 · 计算机科学 2020-12-10 Liwei Song , Prateek Mittal

We propose a simple algorithm to train stochastic neural networks to draw samples from given target distributions for probabilistic inference. Our method is based on iteratively adjusting the neural network parameters so that the output…

机器学习 · 统计学 2016-11-29 Dilin Wang , Qiang Liu

The integration of large language models (LLMs) into cyber security applications presents both opportunities and critical safety risks. We introduce CyberLLMInstruct, a dataset of 54,928 pseudo-malicious instruction-response pairs spanning…

密码学与安全 · 计算机科学 2025-09-18 Adel ElZemity , Budi Arief , Shujun Li

Sparse autoencoders (SAEs) provide a powerful mechanism for decomposing the dense representations produced by Large Language Models (LLMs) into interpretable latent features. We posit that SAEs constitute a natural foundation for Learned…

机器学习 · 计算机科学 2026-03-17 Thibault Formal , Maxime Louis , Hervé Dejean , Stéphane Clinchant

As the computational demands for pre-training Large Language Models (LLMs) continue to surge, the need for efficient training paradigms becomes critical. Despite the vast resources already invested in existing pre-trained checkpoints, these…

机器学习 · 计算机科学 2026-05-18 Ruizhe Wang , Yucheng Ding , Xiao Liu , Yaoxiang Wang , Peng Cheng , Baining Guo , Zhengjun Zha , Yeyun Gong

Downlink beamforming is an essential technology for wireless cellular networks; however, the design of beamforming vectors that maximize the weighted sum rate (WSR) is an NP-hard problem and iterative algorithms are typically applied to…

信号处理 · 电气工程与系统科学 2022-06-28 Jingyuan Xia , Gunduz Deniz

Post-quantum cryptographic (PQC) algorithms, especially those based on the learning with errors (LWE) problem, have been subjected to several physical attacks in the recent past. Although the attacks broadly belong to two classes - passive…