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Due to language models' propensity to generate toxic or hateful responses, several techniques were developed to align model generations with users' preferences. Despite the effectiveness of such methods in improving the safety of model…

计算与语言 · 计算机科学 2023-09-06 Daniel Scalena , Gabriele Sarti , Malvina Nissim , Elisabetta Fersini

As large language models continue to develop and expand, the extensive public data they rely on faces the risk of depletion. Consequently, leveraging private data within organizations to enhance the performance of large models has emerged…

机器学习 · 计算机科学 2025-11-11 Dongcheng Li , Junhan Chen , Aoxiang Zhou , Chunpei Li , Youquan Xian , Peng Liu , Xianxian Li

Diffusion models have emerged as a pivotal advancement in generative models, setting new standards to the quality of the generated instances. In the current paper we aim to underscore a discrepancy between conventional training methods and…

机器学习 · 计算机科学 2023-11-03 Niket Patel , Luis Salamanca , Luis Barba

Large language models (LLMs) are vulnerable when trained on datasets containing harmful content, which leads to potential jailbreaking attacks in two scenarios: the integration of harmful texts within crowdsourced data used for pre-training…

密码学与安全 · 计算机科学 2024-06-03 Xiaoqun Liu , Jiacheng Liang , Muchao Ye , Zhaohan Xi

Large-scale models are pretrained on massive web-crawled datasets containing documents of mixed quality, making data filtering essential. A popular method is Classifier-based Quality Filtering (CQF), which trains a binary classifier to…

机器学习 · 计算机科学 2025-10-03 Thiziri Nait Saada , Louis Bethune , Michal Klein , David Grangier , Marco Cuturi , Pierre Ablin

Data contamination, i.e., the presence of test data from downstream tasks in the training data of large language models (LLMs), is a potential major issue in measuring LLMs' real effectiveness on other tasks. We propose a straightforward…

计算与语言 · 计算机科学 2024-02-23 Shahriar Golchin , Mihai Surdeanu

Large Language Models (LLMs) have demonstrated remarkable abilities in general scenarios. Instruction finetuning empowers them to align with humans in various tasks. Nevertheless, the Diversity and Quality of the instruction data remain two…

计算与语言 · 计算机科学 2024-07-09 Xingyuan Pan , Luyang Huang , Liyan Kang , Zhicheng Liu , Yu Lu , Shanbo Cheng

Instruction tuning -- supervised fine-tuning using instruction-response pairs -- is a key step in making pre-trained large language models (LLMs) instructable. Meanwhile, LLMs perform multitask learning during their pre-training, acquiring…

计算与语言 · 计算机科学 2025-09-16 Seokhyun An , Minji Kim , Hyounghun Kim

Pretraining data selection has the potential to improve language model pretraining efficiency by utilizing higher-quality data from massive web data corpora. Current data selection methods, which rely on either hand-crafted rules or larger…

计算与语言 · 计算机科学 2024-11-19 Zichun Yu , Spandan Das , Chenyan Xiong

The rapid development of large language models (LLMs) gives rise to ethical concerns about their performance, while opening new avenues for developing toxic language detection techniques. However, LLMs' unethical output and their capability…

计算与语言 · 计算机科学 2025-08-22 Xi Chen , Shuo Wang

Pre-trained language models (LMs) are shown to easily generate toxic language. In this work, we systematically explore domain-adaptive training to reduce the toxicity of language models. We conduct this study on three dimensions: training…

计算与语言 · 计算机科学 2022-10-25 Boxin Wang , Wei Ping , Chaowei Xiao , Peng Xu , Mostofa Patwary , Mohammad Shoeybi , Bo Li , Anima Anandkumar , Bryan Catanzaro

As LLMs continue to scale, improving training efficiency increasingly depends on using data more effectively. Data selection addresses this problem by allocating a limited training budget to samples that best promote a target behavior.…

机器学习 · 计算机科学 2026-05-21 Qihao Lin , Guanxu Chen , Dongrui Liu , Jing Shao

Instruction fine-tuning (IFT) elicits instruction following capabilities and steers the behavior of large language models (LLMs) via supervised learning. However, existing models trained on open-source IFT datasets only have the ability to…

Large language models (LLMs) have become integral to our professional workflows and daily lives. Nevertheless, these machine companions of ours have a critical flaw: the huge amount of data which endows them with vast and diverse knowledge,…

计算与语言 · 计算机科学 2024-05-21 Tinh Son Luong , Thanh-Thien Le , Linh Ngo Van , Thien Huu Nguyen

A core data-centric learning challenge is the identification of training samples that are detrimental to model performance. Influence functions serve as a prominent tool for this task and offer a robust framework for assessing training data…

机器学习 · 计算机科学 2025-11-04 Anshuman Chhabra , Bo Li , Jian Chen , Prasant Mohapatra , Hongfu Liu

Large Language Models (LLMs) have demonstrated remarkable capabilities in open-ended text generation tasks. However, the inherent open-ended nature of these tasks implies that there is always room for improvement in the quality of model…

计算与语言 · 计算机科学 2024-09-16 Ziqi Wang , Le Hou , Tianjian Lu , Yuexin Wu , Yunxuan Li , Hongkun Yu , Heng Ji

Backdoor attack introduces artificial vulnerabilities into the model by poisoning a subset of the training data via injecting triggers and modifying labels. Various trigger design strategies have been explored to attack text classifiers,…

计算与语言 · 计算机科学 2021-09-23 Zichao Li , Dheeraj Mekala , Chengyu Dong , Jingbo Shang

While mechanistic interpretability tools like Sparse Autoencoders (SAEs) can uncover meaningful features within Large Language Models (LLMs), a critical gap remains in transforming these insights into practical actions for model…

人工智能 · 计算机科学 2026-04-29 Ling Shi , Xinwei Wu , Xiaohu Zhao , Hao Wang , Heng Liu , Yangyang Liu , Linlong Xu , Longyue Wang , Deyi Xiong , Weihua Luo

As the post-training of large language models (LLMs) advances from instruction-following to complex reasoning tasks, understanding how different data affect finetuning dynamics remains largely unexplored. In this paper, we present a…

机器学习 · 计算机科学 2026-05-12 Ming Li , Yanhong Li , Ziyue Li , Tianyi Zhou

As Large Language Models (LLMs) receive increasing attention and are being deployed across various domains, their potential risks, including generating harmful or biased content, producing unsupported claims, and exhibiting vulnerabilities…

计算与语言 · 计算机科学 2026-04-20 Wai Man Si , Mingjie Li , Michael Backes , Yang Zhang