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Finetuning pretrained models occurs in a low-dimensional subspace of the full parameter space. Prior work has focused on characterizing this optimization subspace, but largely ignored the complementary question: why do certain directions…

机器学习 · 计算机科学 2026-05-11 Junjie Yu , Yue Wang , Zihan Deng , Yan Zhu , Wenxiao Ma , Quanying Liu

Learning meaningful and general representations from unannotated speech that are applicable to a wide range of tasks remains challenging. In this paper we propose to use autoregressive predictive coding (APC), a recently proposed…

音频与语音处理 · 电气工程与系统科学 2020-01-28 Yu-An Chung , James Glass

Multilingual pretraining has been a successful solution to the challenges posed by the lack of resources for languages. These models can transfer knowledge to target languages with minimal or no examples. Recent research suggests that…

计算与语言 · 计算机科学 2024-04-15 Leandro Rodrigues de Souza , Thales Sales Almeida , Roberto Lotufo , Rodrigo Nogueira

Pre-training general-purpose visual features with convolutional neural networks without relying on annotations is a challenging and important task. Most recent efforts in unsupervised feature learning have focused on either small or highly…

计算机视觉与模式识别 · 计算机科学 2019-08-14 Mathilde Caron , Piotr Bojanowski , Julien Mairal , Armand Joulin

Transfer learning is a popular approach to bypassing data limitations in one domain by leveraging data from another domain. This is especially useful in robotics, as it allows practitioners to reduce data collection with physical robots,…

机器学习 · 计算机科学 2020-05-22 Liam Schramm , Avishai Sintov , Abdeslam Boularias

Anomaly Detectors are trained on healthy operating condition data and raise an alarm when the measured samples deviate from the training data distribution. This means that the samples used to train the model should be sufficient in quantity…

机器学习 · 计算机科学 2021-02-24 Gabriel Michau , Olga Fink

Latent diffusion models (LDMs) enable high-fidelity synthesis by operating in learned latent spaces. However, training state-of-the-art LDMs requires complex staging: a tokenizer must be trained first, before the diffusion model can be…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Shivam Duggal , Xingjian Bai , Zongze Wu , Richard Zhang , Eli Shechtman , Antonio Torralba , Phillip Isola , William T. Freeman

A dominant approach for addressing unsupervised domain adaptation is to map data points for the source and the target domains into an embedding space which is modeled as the output-space of a shared deep encoder. The encoder is trained to…

机器学习 · 计算机科学 2022-09-30 Mohammad Rostami

Learning high-quality text representations is fundamental to a wide range of NLP tasks. While encoder pretraining has traditionally relied on Masked Language Modeling (MLM), recent evidence suggests that decoder models pretrained with…

Multi-task transfer learning based on pre-trained language encoders achieves state-of-the-art performance across a range of tasks. Standard approaches implicitly assume the tasks, for which we have training data, are equally representative…

计算与语言 · 计算机科学 2020-09-24 Sheng Zhang , Xin Zhang , Weiming Zhang , Anders Søgaard

Generative modeling in machine learning aims to synthesize new data samples that are statistically similar to those observed during training. While conventional generative models such as GANs and diffusion models typically assume access to…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Milad Abdollahzadeh , Guimeng Liu , Touba Malekzadeh , Christopher T. H. Teo , Keshigeyan Chandrasegaran , Ngai-Man Cheung

Semantic segmentation labels are expensive and time consuming to acquire. Hence, pretraining is commonly used to improve the label-efficiency of segmentation models. Typically, the encoder of a segmentation model is pretrained as a…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Emmanuel Brempong Asiedu , Simon Kornblith , Ting Chen , Niki Parmar , Matthias Minderer , Mohammad Norouzi

Transfer learning enables to re-use knowledge learned on a source task to help learning a target task. A simple form of transfer learning is common in current state-of-the-art computer vision models, i.e. pre-training a model for image…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Thomas Mensink , Jasper Uijlings , Alina Kuznetsova , Michael Gygli , Vittorio Ferrari

We introduce Perception Encoder (PE), a state-of-the-art vision encoder for image and video understanding trained via simple vision-language learning. Traditionally, vision encoders have relied on a variety of pretraining objectives, each…

In this paper, we present a novel cross-consistency based semi-supervised approach for semantic segmentation. Consistency training has proven to be a powerful semi-supervised learning framework for leveraging unlabeled data under the…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Yassine Ouali , Céline Hudelot , Myriam Tami

Research in many fields has shown that transfer learning (TL) is well-suited to improve the performance of deep learning (DL) models in datasets with small numbers of samples. This empirical success has triggered interest in the application…

神经元与认知 · 定量生物学 2021-11-03 Armin W. Thomas , Ulman Lindenberger , Wojciech Samek , Klaus-Robert Müller

Modern computer vision models have proven to be highly useful for medical imaging classification and segmentation tasks, but the scarcity of medical imaging data often limits the efficacy of models trained from scratch. Transfer learning…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Daniel Frees , Moritz Bolling , Aditri Bhagirath

High-quality teacher-child interaction (TCI) is fundamental to early childhood development, yet traditional expert-based assessment faces a critical scalability challenge. In large systems like China's-serving 36 million children across…

计算与语言 · 计算机科学 2026-03-26 Xingming Li , Runke Huang , Yanan Bao , Yuye Jin , Yuru Jiao , Qingyong Hu

Supervised ASR models have reached unprecedented levels of accuracy, thanks in part to ever-increasing amounts of labelled training data. However, in many applications and locales, only moderate amounts of data are available, which has led…

The accuracy of machine learning systems is a widely studied research topic. Established techniques such as cross-validation predict the accuracy on unseen data of the classifier produced by applying a given learning method to a given…

机器学习 · 计算机科学 2012-12-06 J. E. Smith , P. Caleb-Solly , M. A. Tahir , D. Sannen , H. van-Brussel