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相关论文: On the Importance of Pretraining Data Alignment fo…

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Deep learning models are widely used across computer vision and other domains. When working on the model induction, selecting the right architecture for a given dataset often relies on repetitive trial-and-error procedures. This procedure…

机器学习 · 计算机科学 2026-01-06 Yen-Chia Chen , Hsing-Kuo Pao , Hanjuan Huang

AI model alignment is crucial due to inadvertent biases in training data and the underspecified machine learning pipeline, where models with excellent test metrics may not meet end-user requirements. While post-training alignment via human…

机器学习 · 计算机科学 2024-11-06 William Overman , Jacqueline Jil Vallon , Mohsen Bayati

In the low-data regime, it is difficult to train good supervised models from scratch. Instead practitioners turn to pre-trained models, leveraging transfer learning. Ensembling is an empirically and theoretically appealing way to construct…

机器学习 · 计算机科学 2020-10-20 Basil Mustafa , Carlos Riquelme , Joan Puigcerver , André Susano Pinto , Daniel Keysers , Neil Houlsby

The superficial alignment hypothesis (SAH) posits that large language models learn most of their knowledge during pre-training, and that post-training merely surfaces this knowledge. The SAH, however, lacks a precise definition, which has…

机器学习 · 计算机科学 2026-02-18 Tomás Vergara-Browne , Darshan Patil , Ivan Titov , Siva Reddy , Tiago Pimentel , Marius Mosbach

Pretrained models of code, such as CodeBERT and CodeT5, have become popular choices for code understanding and generation tasks. Such models tend to be large and require commensurate volumes of training data, which are rarely available for…

机器学习 · 计算机科学 2024-01-23 Kamel Alrashedy , Vincent J. Hellendoorn , Alessandro Orso

Despite an artificial intelligence-assisted modeling of disordered crystals is a widely used and well-tried method of new materials design, the issues of its robustness, reliability, and stability are still not resolved and even not…

计算物理 · 物理学 2024-11-08 Fedor S. Avilov , Roman A. Eremin , Semen A. Budennyy , Innokentiy S. Humonen

Almost all the state-of-the-art neural networks for computer vision tasks are trained by (1) pre-training on a large-scale dataset and (2) finetuning on the target dataset. This strategy helps reduce dependence on the target dataset and…

计算机视觉与模式识别 · 计算机科学 2021-11-22 Shuvam Chakraborty , Burak Uzkent , Kumar Ayush , Kumar Tanmay , Evan Sheehan , Stefano Ermon

Efficient fine-tuning methods are critical to address the high computational and parameter complexity while adapting large pre-trained models to downstream tasks. Our study is inspired by prior research that represents each convolution…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Wei Chen , Zichen Miao , Qiang Qiu

Unsupervised pretraining, which learns a useful representation using a large amount of unlabeled data to facilitate the learning of downstream tasks, is a critical component of modern large-scale machine learning systems. Despite its…

机器学习 · 统计学 2023-03-06 Jiawei Ge , Shange Tang , Jianqing Fan , Chi Jin

Preference learning is a widely adopted post-training technique that aligns large language models (LLMs) to human preferences and improves specific downstream task capabilities. In this work we systematically investigate how specific…

计算与语言 · 计算机科学 2024-12-23 Joongwon Kim , Anirudh Goyal , Aston Zhang , Bo Xiong , Rui Hou , Melanie Kambadur , Dhruv Mahajan , Hannaneh Hajishirzi , Liang Tan

Leveraging task-aware annotated data as supervised signals to assist with self-supervised learning on large-scale unlabeled data has become a new trend in pre-training language models. Existing studies show that multi-task learning with…

计算与语言 · 计算机科学 2022-10-13 Zhuosheng Zhang , Shuohang Wang , Yichong Xu , Yuwei Fang , Wenhao Yu , Yang Liu , Hai Zhao , Chenguang Zhu , Michael Zeng

Domain reweighting is an emerging research area aimed at adjusting the relative weights of different data sources to improve the effectiveness and efficiency of LLM pre-training. We show that data mixtures that perform well at smaller…

机器学习 · 计算机科学 2025-10-03 Feiyang Kang , Yifan Sun , Bingbing Wen , Si Chen , Dawn Song , Rafid Mahmood , Ruoxi Jia

Increasingly large datasets of robot actions and sensory observations are being collected to train ever-larger neural networks. These datasets are collected based on tasks and while these tasks may be distinct in their descriptions, many…

机器人学 · 计算机科学 2025-10-23 Basavasagar Patil , Sydney Belt , Jayjun Lee , Nima Fazeli , Bernadette Bucher

Recent years have seen an explosion of diverse general purpose pre-training methodologies for computer vision. However, the impact that these pre-training methodologies have on person identification tasks (re-id) remains under-explored. We…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Thomas M. Metz , Matthew Q. Hill , Alice J. O'Toole

Every data selection method inherently has a target. In practice, these targets often emerge implicitly through benchmark-driven iteration: researchers develop selection strategies, train models, measure benchmark performance, then refine…

The superior performance of some of today's state-of-the-art deep learning models is to some extent owed to extensive (self-)supervised contrastive pretraining on large-scale datasets. In contrastive learning, the network is presented with…

机器学习 · 计算机科学 2022-07-20 Shervin Ardeshir , Navid Azizan

Recent advances in artificial intelligence have been fueled by the development of foundation models such as BERT, GPT, T5, and Vision Transformers. These models are first pretrained on vast and diverse datasets and then adapted to specific…

机器学习 · 计算机科学 2025-05-30 Michael Munn , Susan Wei

A learning task, understood as the problem of fitting a parametric model from supervised data, fundamentally requires the dataset to be large enough to be representative of the underlying distribution of the source. When data is limited,…

Given the vastness of chemical space and the ongoing emergence of previously uncharacterized proteins, zero-shot compound-protein interaction (CPI) prediction better reflects the practical challenges and requirements of real-world drug…

机器学习 · 计算机科学 2025-07-29 Hongzhi Zhang , Zhonglie Liu , Kun Meng , Jiameng Chen , Jia Wu , Bo Du , Di Lin , Yan Che , Wenbin Hu

Automated ranking of pre-trained Deep Neural Networks (DNNs) reduces the required time for selecting optimal pre-trained DNN and boost the classification performance in transfer learning. In this paper, we introduce a novel algorithm to…

机器学习 · 计算机科学 2020-12-29 Mostafa Kalhor , Ahmad Kalhor , Mehdi Rahmani