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Standard fine-tuning of large pre-trained language models (PLMs) for downstream tasks requires updating hundreds of millions to billions of parameters, and storing a large copy of the PLM weights for every task resulting in increased cost…

Computation and Language · Computer Science 2022-11-03 Yaqing Wang , Sahaj Agarwal , Subhabrata Mukherjee , Xiaodong Liu , Jing Gao , Ahmed Hassan Awadallah , Jianfeng Gao

Standard fine-tuning of large pre-trained language models (PLMs) for downstream tasks requires updating hundreds of millions to billions of parameters, and storing a large copy of the PLM weights for every task resulting in increased cost…

Computation and Language · Computer Science 2022-11-07 Yaqing Wang , Sahaj Agarwal , Subhabrata Mukherjee , Xiaodong Liu , Jing Gao , Ahmed Hassan Awadallah , Jianfeng Gao

This paper presents an extensive examination of Parameter-Efficient Fine-Tuning (PEFT) for embedding domain specific facts into Large Language Models (LLMs), focusing on improving the fine-tuning process by categorizing question-answer (QA)…

Computation and Language · Computer Science 2025-10-28 Shivam Ratnakar , Abhiroop Talasila , Raghav Chamadiya , Nikhil Agarwal , Vinayak K Doifode

This study evaluates Direct Preference Optimization (DPO) and its variants for aligning Large Language Models (LLMs) with human preferences, testing three configurations: (1) with Supervised Fine Tuning (SFT), (2) without SFT, and (3)…

Computation and Language · Computer Science 2025-02-11 Amir Saeidi , Shivanshu Verma , Md Nayem Uddin , Chitta Baral

The entry of large language models (LLMs) into research and commercial spaces has led to a trend of ever-larger models, with initial promises of generalisability, followed by a widespread desire to downsize and create specialised models…

Computation and Language · Computer Science 2024-02-19 Niall Taylor , Upamanyu Ghose , Omid Rohanian , Mohammadmahdi Nouriborji , Andrey Kormilitzin , David Clifton , Alejo Nevado-Holgado

Parameter-Efficient Fine-Tuning (PEFT) methods have become crucial for rapidly adapting large language models (LLMs) to downstream tasks. Prefix-Tuning, an early and effective PEFT technique, demonstrated the ability to achieve performance…

Computation and Language · Computer Science 2026-04-21 Haonan Wang , Brian Chen , Siquan Li , Xinhe Liang , Hwee Kuan Lee , Kenji Kawaguchi , Tianyang Hu

The problem of hallucination and omission, a long-standing problem in machine translation (MT), is more pronounced when a large language model (LLM) is used in MT because an LLM itself is susceptible to these phenomena. In this work, we…

Computation and Language · Computer Science 2024-11-22 Qiyu Wu , Masaaki Nagata , Zhongtao Miao , Yoshimasa Tsuruoka

Large language models are first pre-trained on trillions of tokens and then instruction-tuned or aligned to specific preferences. While pre-training remains out of reach for most researchers due to the compute required, fine-tuning has…

Computation and Language · Computer Science 2024-06-10 Megh Thakkar , Quentin Fournier , Matthew D Riemer , Pin-Yu Chen , Amal Zouaq , Payel Das , Sarath Chandar

Large Language Models (LLMs) have demonstrated remarkable performance in real-world applications. However, adapting LLMs to novel tasks via fine-tuning often requires substantial training data and computational resources that are…

Machine Learning · Computer Science 2025-05-27 Boyan Gao , Xin Wang , Yibo Yang , David Clifton

The reusability of state-of-the-art Pre-trained Language Models (PLMs) is often limited by their generalization problem, where their performance drastically decreases when evaluated on examples that differ from the training dataset, known…

Computation and Language · Computer Science 2023-08-09 Somayeh Ghanbarzadeh , Hamid Palangi , Yan Huang , Radames Cruz Moreno , Hamed Khanpour

Supervised fine-tuning (SFT) is the standard approach for post-training large language models (LLMs), yet it often shows limited generalization. We trace this limitation to its default training objective: negative log likelihood (NLL).…

Computation and Language · Computer Science 2026-05-25 Gaotang Li , Ruizhong Qiu , Xiusi Chen , Heng Ji , Hanghang Tong

Foundation models, specifically Large Language Models (LLMs), have lately gained wide-spread attention and adoption. Reinforcement Learning with Human Feedback (RLHF) involves training a reward model to capture desired behaviors, which is…

Computation and Language · Computer Science 2024-01-25 Will LeVine , Benjamin Pikus , Anthony Chen , Sean Hendryx

Pre-trained language models (PLMs) have ignited a surge in demand for effective fine-tuning techniques, particularly in low-resource domains and languages. Active learning (AL), a set of algorithms designed to decrease labeling costs by…

Computation and Language · Computer Science 2023-10-24 Josip Jukić , Jan Šnajder

Aligning large language models (LLMs) with human intentions has become a critical task for safely deploying models in real-world systems. While existing alignment approaches have seen empirical success, theoretically understanding how these…

Machine Learning · Computer Science 2024-08-08 Shawn Im , Yixuan Li

Parameter-efficient fine-tuning (PEFT) methods are widely used to adapt large language models (LLMs) to downstream tasks and are often assumed to improve factual correctness. However, how the parameter-efficient fine-tuning methods affect…

Computation and Language · Computer Science 2026-02-13 Xu Hu , Yifan Zhang , Songtao Wei , Chen Zhao , Qiannan Li , Bingzhe Li , Feng Chen

Preference alignment in Large Language Models (LLMs) has significantly improved their ability to adhere to human instructions and intentions. However, existing direct alignment algorithms primarily focus on relative preferences and often…

Machine Learning · Computer Science 2025-05-13 Shenao Zhang , Zhihan Liu , Boyi Liu , Yufeng Zhang , Yingxiang Yang , Yongfei Liu , Liyu Chen , Tao Sun , Zhaoran Wang

In recent years, Large Language Models (LLMs) have shown remarkable performance in generating human-like text, proving to be a valuable asset across various applications. However, adapting these models to incorporate new, out-of-domain…

Hallucination, the generation of factually incorrect information, remains a significant challenge for large language models (LLMs), especially in open-domain long-form generation. Existing approaches for detecting hallucination in long-form…

Large Language Models (LLMs), built on Transformer architectures, exhibit remarkable generalization across a wide range of tasks. However, fine-tuning these models for specific tasks remains resource-intensive due to their extensive…

Machine Learning · Computer Science 2025-05-15 Xinhao Yao , Hongjin Qian , Xiaolin Hu , Gengze Xu , Wei Liu , Jian Luan , Bin Wang , Yong Liu

Recently, we have observed that Large Multi-modal Models (LMMs) are revolutionizing the way machines interact with the world, unlocking new possibilities across various multi-modal applications. To adapt LMMs for downstream tasks,…

Computation and Language · Computer Science 2024-11-04 Donghoon Kim , Gusang Lee , Kyuhong Shim , Byonghyo Shim