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相关论文: Meta-Learning to Improve Pre-Training

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Reinforcement learning (RL) has had many successes in both "deep" and "shallow" settings. In both cases, significant hyperparameter tuning is often required to achieve good performance. Furthermore, when nonlinear function approximation is…

机器学习 · 计算机科学 2019-05-27 Kenny Young , Baoxiang Wang , Matthew E. Taylor

By pretraining on trillions of tokens, an LLM gains the capability of text generation. However, to enhance its utility and reduce potential harm, SFT and alignment are applied sequentially to the pretrained model. Because SFT and alignment…

计算与语言 · 计算机科学 2026-05-11 Zhichao Wang , Bin Bi , Zixu Zhu , Xiangbo Mao , Jun Wang , Shiyu Wang , Cheng Wang , Dong Nie , Lingzi Hong

The aerodynamic optimization of cars requires close collaboration between aerodynamicists and stylists, while slow, expensive simulations remain a bottleneck. Surrogate models have been shown to accurately predict aerodynamics within the…

机器学习 · 计算机科学 2025-09-23 Sam Jacob Jacob , Markus Mrosek , Carsten Othmer , Harald Köstler

Prior-Fitted Networks (PFNs) have recently been proposed to efficiently perform tabular classification tasks. Although they achieve good performance on small datasets, they encounter limitations with larger datasets. These limitations…

机器学习 · 计算机科学 2025-03-04 Yuxin Wang , Botian Jiang , Yiran Guo , Quan Gan , David Wipf , Xuanjing Huang , Xipeng Qiu

Recent state-of-the-art language models utilize a two-phase training procedure comprised of (i) unsupervised pre-training on unlabeled text, and (ii) fine-tuning for a specific supervised task. More recently, many studies have been focused…

计算与语言 · 计算机科学 2019-11-15 Itzik Malkiel , Lior Wolf

Progressive Neural Network Learning is a class of algorithms that incrementally construct the network's topology and optimize its parameters based on the training data. While this approach exempts the users from the manual task of designing…

机器学习 · 计算机科学 2020-05-26 Dat Thanh Tran , Moncef Gabbouj , Alexandros Iosifidis

Improving Multi-modal Large Language Models (MLLMs) in the post-training stage typically relies on supervised fine-tuning (SFT) or reinforcement learning (RL), which require expensive and manually annotated multi-modal data--an ultimately…

计算与语言 · 计算机科学 2025-10-28 Lai Wei , Yuting Li , Chen Wang , Yue Wang , Linghe Kong , Weiran Huang , Lichao Sun

Most uses of machine learning today involve training a model from scratch for a particular task, or sometimes starting with a model pretrained on a related task and then fine-tuning on a downstream task. Both approaches offer limited…

机器学习 · 计算机科学 2022-05-26 Andrea Gesmundo , Jeff Dean

Adapting pretrained language models to novel domains, such as clinical applications, traditionally involves retraining their entire set of parameters. Parameter-Efficient Fine-Tuning (PEFT) techniques for fine-tuning language models…

计算与语言 · 计算机科学 2024-06-11 Aryo Pradipta Gema , Pasquale Minervini , Luke Daines , Tom Hope , Beatrice Alex

Adapting pre-trained neural models to downstream tasks has become the standard practice for obtaining high-quality models. In this work, we propose a novel model adaptation paradigm, adapting by pruning, which prunes neural connections in…

机器学习 · 计算机科学 2021-05-10 Yang Gao , Nicolo Colombo , Wei Wang

The optimization-based meta-learning approach is gaining increased traction because of its unique ability to quickly adapt to a new task using only small amounts of data. However, existing optimization-based meta-learning approaches, such…

机器学习 · 计算机科学 2024-12-17 Honglin Yang , Ji Ma , Xiao Yu

Large Language Models (LLMs) are pretrained on massive datasets and later instruction-tuned via supervised fine-tuning (SFT) or reinforcement learning (RL). Best practices emphasize large, diverse pretraining data, whereas post-training…

机器学习 · 计算机科学 2026-03-03 Adel Javanmard , Baharan Mirzasoleiman , Vahab Mirrokni

Prompt tuning (PT), where a small amount of trainable soft (continuous) prompt vectors is affixed to the input of language models (LM), has shown promising results across various tasks and models for parameter-efficient fine-tuning (PEFT).…

计算与语言 · 计算机科学 2024-02-20 Zhengxiang Shi , Aldo Lipani

Prompt tuning is a parameter-efficient tuning (PETuning) method for utilizing pre-trained models (PTMs) that simply prepends a soft prompt to the input and only optimizes the prompt to adapt PTMs to downstream tasks. Although it is…

计算与语言 · 计算机科学 2022-10-24 Xiangyang Liu , Tianxiang Sun , Xuanjing Huang , Xipeng Qiu

Parameter-efficient tunings (PETs) have demonstrated impressive performance and promising perspectives in training large models, while they are still confronted with a common problem: the trade-off between learning new content and…

机器学习 · 计算机科学 2024-07-18 Jingyang Qiao , Zhizhong Zhang , Xin Tan , Yanyun Qu , Wensheng Zhang , Zhi Han , Yuan Xie

Self-supervised pre-training of large-scale transformer models on text corpora followed by finetuning has achieved state-of-the-art on a number of natural language processing tasks. Recently, Lu et al. (2021, arXiv:2103.05247) claimed that…

机器学习 · 计算机科学 2021-07-28 Danielle Rothermel , Margaret Li , Tim Rocktäschel , Jakob Foerster

Large pre-trained models achieve remarkable performance in vision tasks but are impractical for fine-tuning due to high computational and storage costs. Parameter-Efficient Fine-Tuning (PEFT) methods mitigate this issue by updating only a…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Siqi Luo , Haoran Yang , Yi Xin , Mingyang Yi , Guangyang Wu , Guangtao Zhai , Xiaohong Liu

Image-based reinforcement learning (RL) faces significant challenges in generalization when the visual environment undergoes substantial changes between training and deployment. Under such circumstances, learned policies may not perform…

机器人学 · 计算机科学 2024-07-25 Weiyao Wang , Xinyuan Fang , Gregory D. Hager

Large Language Models (LLMs) have shown remarkable performance across various tasks, but the escalating demands on computational resources pose significant challenges, particularly in the extensive utilization of full fine-tuning for…

机器学习 · 计算机科学 2025-01-07 Jia-Hong Huang , Yixian Shen , Hongyi Zhu , Stevan Rudinac , Evangelos Kanoulas

Neural networks pre-trained on a self-supervision scheme have become the standard when operating in data rich environments with scarce annotations. As such, fine-tuning a model to a downstream task in a parameter-efficient but effective…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Marc Fischer , Alexander Bartler , Bin Yang