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Supervised fine-tuning (SFT) has emerged as a crucial method for aligning large language models (LLMs) with human-annotated demonstrations. However, SFT, being an off-policy approach similar to behavior cloning, often struggles with…

Fine-tuning large language models (LLM) can be costly. Parameter-efficient fine-tuning (PEFT) addresses the problems by training a fraction of the parameters, whose success reveals the expressiveness and flexibility of pretrained models.…

机器学习 · 计算机科学 2024-05-07 Jing Xu , Jingzhao Zhang

Low-Rank Adaptation (LoRA) has emerged as a popular parameter-efficient fine-tuning (PEFT) method for Large Language Models (LLMs), yet it still incurs notable overhead and suffers from parameter interference in multi-task scenarios. We…

机器学习 · 计算机科学 2025-08-05 Juzheng Zhang , Jiacheng You , Ashwinee Panda , Tom Goldstein

Adapting pre-trained foundation models for diverse downstream tasks is a core practice in artificial intelligence. However, the wide range of tasks and high computational costs make full fine-tuning impractical. To overcome this,…

机器学习 · 计算机科学 2025-06-27 Chongjie Si , Zhiyi Shi , Xuehui Wang , Yichen Xiao , Xiaokang Yang , Wei Shen

Supervised fine-tuning (SFT) is a critical step in aligning large language models (LLMs) with human instructions and values, yet many aspects of SFT remain poorly understood. We trained a wide range of base models on a variety of datasets…

计算与语言 · 计算机科学 2025-10-31 Yuto Harada , Yusuke Yamauchi , Yusuke Oda , Yohei Oseki , Yusuke Miyao , Yu Takagi

How many parameters are required for a model to execute a given task? It has been argued that large language models, pre-trained via self-supervised learning, exhibit emergent capabilities such as multi-step reasoning as their number of…

机器学习 · 计算机科学 2024-09-23 Ingvar Ziemann , Nikolai Matni , George J. Pappas

Supervised Finetuning (SFT) has become one of the primary methods for adapting a large language model (LLM) with extensive pre-trained knowledge to domain-specific, instruction-following tasks. SFT datasets, composed of instruction-response…

密码学与安全 · 计算机科学 2026-05-13 Sae Furukawa , Alina Oprea

Supervised Fine-Tuning (SFT) and Preference Optimization (PO) are key processes for aligning Language Models (LMs) with human preferences post pre-training. While SFT excels in efficiency and PO in effectiveness, they are often combined…

计算与语言 · 计算机科学 2025-07-15 Ermo Hua , Biqing Qi , Kaiyan Zhang , Kai Tian , Xingtai Lv , Ning Ding , Bowen Zhou

Diffusion models have recently shown strong potential in language modeling, offering faster generation compared to traditional autoregressive approaches. However, applying supervised fine-tuning (SFT) to diffusion models remains…

计算与语言 · 计算机科学 2026-05-12 Guowei Xu , Wenxin Xu , Jiawang Zhao , Kaisheng Ma

Parameter Efficient Fine-Tuning (PEFT) offers an efficient solution for fine-tuning large pretrained language models for downstream tasks. However, most PEFT strategies are manually designed, often resulting in suboptimal performance.…

计算与语言 · 计算机科学 2024-10-15 Aofei Chang , Jiaqi Wang , Han Liu , Parminder Bhatia , Cao Xiao , Ting Wang , Fenglong Ma

This paper presents an algorithm for checking and enforcing passivity of behavioral reduced-order macromodels of LTI systems, whose frequency-domain (scattering) responses depend on external parameters. Such models, which are typically…

计算工程、金融与科学 · 计算机科学 2020-11-06 Stefano Grivet-Talocia

Anomaly Detection (AD) focuses on identifying unusual behaviors in complex datasets. Machine Learning (ML) algorithms and Decision Support Systems (DSSs) provide effective solutions for AD, but detecting anomalies alone may not be enough,…

机器学习 · 统计学 2024-10-10 Alessio Arcudi , Davide Frizzo , Chiara Masiero , Gian Antonio Susto

Parameter-efficient fine-tuning (PEFT) is crucial for customizing Large Language Models (LLMs) with constrained resources. Although there have been various PEFT methods for dense-architecture LLMs, PEFT for sparse-architecture LLMs is still…

计算与语言 · 计算机科学 2024-07-08 Zihan Wang , Deli Chen , Damai Dai , Runxin Xu , Zhuoshu Li , Y. Wu

Parameter-Efficient Fine-Tuning (PEFT) methods achieve performance comparable to Full Fine-Tuning (FFT) while requiring significantly fewer computing resources, making it the go-to choice for researchers. We find that although PEFT can…

机器学习 · 计算机科学 2025-05-29 Yongkang Liu , Xingle Xu , Ercong Nie , Zijing Wang , Shi Feng , Daling Wang , Qian Li , Hinrich Schütze

Advancing large language models (LLMs) for the next point-of-interest (POI) recommendation task faces two fundamental challenges: (i) although existing methods produce semantic IDs that incorporate semantic information, their topology-blind…

信息检索 · 计算机科学 2026-03-13 Peibo Li , Shuang Ao , Hao Xue , Yang Song , Maarten de Rijke , Johan Barthélemy , Tomasz Bednarz , Flora D. Salim

The Parameter-Efficient Fine-Tuning (PEFT) method, which adjusts or introduces fewer trainable parameters to calibrate pre-trained models on downstream tasks, has become a recent research interest. However, existing PEFT methods within the…

计算与语言 · 计算机科学 2023-12-13 Jiacheng Ruan , Jingsheng Gao , Mingye Xie , Suncheng Xiang , Zefang Yu , Ting Liu , Yuzhuo Fu

Supervised Fine-Tuning (SFT) adapts pre-trained Large Language Models (LLMs) to domain-specific instructions by training on a carefully curated subset of high-quality instruction-response pairs, typically drawn from a larger dataset that…

计算与语言 · 计算机科学 2025-10-28 Zile Yang , Ling Li , Na Di , Jinlong Pang , Yao Zhou , Hao Cheng , Bo Han , Jiaheng Wei

Supervised Fine-Tuning (SFT) followed by Reinforcement Learning (RL) has emerged as the standard post-training paradigm for large language models (LLMs). However, the conventional SFT process, driven by Cross-Entropy (CE) loss, often…

计算与语言 · 计算机科学 2026-02-10 Yijie Chen , Yijin Liu , Fandong Meng

Parameter-Efficient Fine-Tuning (PEFT) provides a practical way for users to customize Large Language Models (LLMs) with their private data in LLM service scenarios. However, the inherently sensitive nature of private data demands robust…

计算与语言 · 计算机科学 2025-10-13 Yansong Li , Zhixing Tan , Paula Branco , Yang Liu

Pre-training and fine-tuning have achieved significant advances in the information retrieval (IR). A typical approach is to fine-tune all the parameters of large-scale pre-trained models (PTMs) on downstream tasks. As the model size and the…

信息检索 · 计算机科学 2022-08-23 Xinyu Ma , Jiafeng Guo , Ruqing Zhang , Yixing Fan , Xueqi Cheng