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Large Language Models (LLMs), particularly slow-thinking models, often exhibit severe hallucination, outputting incorrect content due to an inability to accurately recognize knowledge boundaries during reasoning. While Reinforcement…

人工智能 · 计算机科学 2026-04-17 Baochang Ren , Shuofei Qiao , Da Zheng , Huajun Chen , Ningyu Zhang

Supervised Fine-Tuning (SFT) is a critical step for enhancing the instruction-following capabilities of Large Language Models (LLMs) and adapting them to specialized domains. However, SFT often leads to a degradation of the model's general…

计算与语言 · 计算机科学 2025-07-01 Fei Ding , Baiqiao Wang

Recently, prompt tuning \cite{lester2021power} has gradually become a new paradigm for NLP, which only depends on the representation of the words by freezing the parameters of pre-trained language models (PLMs) to obtain remarkable…

计算与语言 · 计算机科学 2022-01-31 Pan He , Yuxi Chen , Yan Wang , Yanru Zhang

Large language models (LLMs) exhibit cognitive biases -- systematic tendencies of irrational decision-making, similar to those seen in humans. Prior work has found that these biases vary across models and can be amplified by instruction…

计算与语言 · 计算机科学 2025-07-15 Itay Itzhak , Yonatan Belinkov , Gabriel Stanovsky

Language Models (LMs) memorize a vast amount of factual knowledge, exhibiting strong performance across diverse tasks and domains. However, it has been observed that the performance diminishes when dealing with less-popular or low-frequency…

计算与语言 · 计算机科学 2024-12-03 Heydar Soudani , Evangelos Kanoulas , Faegheh Hasibi

The visual models pretrained on large-scale benchmarks encode general knowledge and prove effective in building more powerful representations for downstream tasks. Most existing approaches follow the fine-tuning paradigm, either by…

计算机视觉与模式识别 · 计算机科学 2023-08-24 Nan Zhou , Jiaxin Chen , Di Huang

Large language models (LLMs) have achieved impressive performance across natural language processing (NLP) tasks. As real-world applications increasingly demand longer context windows, continued pretraining and supervised fine-tuning (SFT)…

计算与语言 · 计算机科学 2025-10-06 Yingming Zheng , Hanqi Li , Kai Yu , Lu Chen

Pre-trained large multi-modal models (LMMs) exploit fine-tuning to adapt diverse user applications. Nevertheless, fine-tuning may face challenges due to deactivated sensors (e.g., cameras turned off for privacy or technical issues),…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Shu Zhao , Xiaohan Zou , Tan Yu , Huijuan Xu

Large language models (LLMs) are often used in environments where facts evolve, yet factual knowledge updates via fine-tuning on unstructured text often suffer from 1) reliance on compute-heavy paraphrasing augmentation and 2) the reversal…

计算与语言 · 计算机科学 2026-05-07 Xu Pan , Ely Hahami , Jingxuan Fan , Ziqian Xie , Haim Sompolinsky

Supervised fine-tuning (SFT) with token-level hard labels can amplify overconfident imitation of factually unsupported targets, causing hallucinations that propagate in multi-sentence generation. We study an augmented SFT setting in which…

计算与语言 · 计算机科学 2026-04-03 Chenning Xu , Mao Zheng , Mingyang Song

Knowledge tracing (KT) aims to estimate student's knowledge mastery based on their historical interactions. Recently, the deep learning based KT (DLKT) approaches have achieved impressive performance in the KT task. These DLKT models…

计算机与社会 · 计算机科学 2024-10-28 Hengyuan Zhang , Zitao Liu , Shuyan Huang , Chenming Shang , Bojun Zhan , Yong Jiang

Recent advances in generative deep learning have enabled the creation of high-quality synthetic images in text-to-image generation. Prior work shows that fine-tuning a pretrained diffusion model on ImageNet and generating synthetic training…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Zhuoran Yu , Chenchen Zhu , Sean Culatana , Raghuraman Krishnamoorthi , Fanyi Xiao , Yong Jae Lee

Instruction-tuning is a widely adopted finetuning method that enables large language models (LLMs) to generate output that more closely resembles human responses. However, no studies have shown that instruction-tuning actually teaches LLMs…

计算与语言 · 计算机科学 2024-08-12 Khai Loong Aw , Syrielle Montariol , Badr AlKhamissi , Martin Schrimpf , Antoine Bosselut

Large Language Models (LLMs) are powerful but often require extensive fine-tuning and large datasets for specialized domains like law. General-purpose pre-training may not capture legal nuances, and acquiring sufficient legal data is…

计算与语言 · 计算机科学 2025-05-01 Ojasw Upadhyay , Abishek Saravanakumar , Ayman Ismail

Instruction tuning is critical to large language models (LLMs) for achieving better instruction following and task adaptation capabilities but its success heavily relies on the training data quality. Many recent methods focus on improving…

计算与语言 · 计算机科学 2024-06-11 Ming Li , Lichang Chen , Jiuhai Chen , Shwai He , Jiuxiang Gu , Tianyi Zhou

A standard practice when using large language models is for users to supplement their instruction with an input context containing new information for the model to process. However, models struggle to reliably follow the input context,…

机器学习 · 计算机科学 2025-04-22 Sachin Goyal , Christina Baek , J. Zico Kolter , Aditi Raghunathan

Fine-tuning pre-trained large language models (LLMs) on a diverse array of tasks has become a common approach for building models that can solve various natural language processing (NLP) tasks. However, where and to what extent these models…

计算与语言 · 计算机科学 2024-10-29 Zheng Zhao , Yftah Ziser , Shay B. Cohen

The in-context learning ability of large language models (LLMs) enables them to generalize to novel downstream tasks with relatively few labeled examples. However, they require enormous computational resources to be deployed. Alternatively,…

计算与语言 · 计算机科学 2024-01-09 Jean Kaddour , Qi Liu

Large language models (LLMs) often miscommunicate their uncertainty: repeated queries can produce divergent answers, yet generated responses are typically unhedged or hedged in ways that do not reflect this variability. This conveys…

计算与语言 · 计算机科学 2025-10-15 Bryan Eikema , Evgenia Ilia , José G. C. de Souza , Chrysoula Zerva , Wilker Aziz

Despite the promising progress in multi-modal tasks, current large multi-modal models (LMMs) are prone to hallucinating inconsistent descriptions with respect to the associated image and human instructions. This paper addresses this issue…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Fuxiao Liu , Kevin Lin , Linjie Li , Jianfeng Wang , Yaser Yacoob , Lijuan Wang
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