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The remarkable performance of deep neural networks depends on the availability of massive labeled data. To alleviate the load of data annotation, active deep learning aims to select a minimal set of training points to be labelled which…

机器学习 · 计算机科学 2020-03-24 Dan Kushnir , Luca Venturi

Recent progress has rapidly advanced our understanding of the mechanisms underlying in-context learning in modern attention-based neural networks. However, existing results focus exclusively on unimodal data; in contrast, the theoretical…

机器学习 · 统计学 2026-05-19 Nicholas Barnfield , Subhabrata Sen , Pragya Sur

Diffusion models have made significant advances recently in high-quality image synthesis and related tasks. However, diffusion models trained on real-world datasets, which often follow long-tailed distributions, yield inferior fidelity for…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Divin Yan , Lu Qi , Vincent Tao Hu , Ming-Hsuan Yang , Meng Tang

Transfer learning aims to learn robust classifiers for the target domain by leveraging knowledge from a source domain. Since the source and the target domains are usually from different distributions, existing methods mainly focus on…

机器学习 · 计算机科学 2019-09-19 Jindong Wang , Yiqiang Chen , Wenjie Feng , Han Yu , Meiyu Huang , Qiang Yang

We introduce a new method for learning Bayesian neural networks, treating them as a stack of multivariate Bayesian linear regression models. The main idea is to infer the layerwise posterior exactly if we know the target outputs of each…

机器学习 · 计算机科学 2024-11-20 Richard Kurle , Alexej Klushyn , Ralf Herbrich

We give a new algorithm for learning mixtures of $k$ Gaussians (with identity covariance in $\mathbb{R}^n$) to TV error $\varepsilon$, with quasi-polynomial ($O(n^{\text{poly\,log}\left(\frac{n+k}{\varepsilon}\right)})$) time and sample…

机器学习 · 计算机科学 2025-03-05 Khashayar Gatmiry , Jonathan Kelner , Holden Lee

Long-tailed class distributions are prevalent among the practical applications of object detection and instance segmentation. Prior work in long-tail instance segmentation addresses the imbalance of losses between rare and frequent…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Ting-I Hsieh , Esther Robb , Hwann-Tzong Chen , Jia-Bin Huang

Recent advances in generative modeling have positioned diffusion models as state-of-the-art tools for sampling from complex data distributions. While these models have shown remarkable success across single-modality domains such as images…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Nimrod Berman , Omkar Joglekar , Eitan Kosman , Dotan Di Castro , Omri Azencot

We present a new approach for transferring knowledge from groups to individuals that comprise them. We evaluate our method in text, by inferring the ratings of individual sentences using full-review ratings. This approach, which combines…

机器学习 · 计算机科学 2014-12-11 Dimitrios Kotzias , Misha Denil , Phil Blunsom , Nando de Freitas

As one of the most successful generative models, diffusion models have demonstrated remarkable efficacy in synthesizing high-quality images. These models learn the underlying high-dimensional data distribution in an unsupervised manner.…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Min Hou , Yueying Wu , Chang Xu , Yu-Hao Huang , Chenxi Bai , Le Wu , Jiang Bian

Deep learning models dealing with image understanding in real-world settings must be able to adapt to a wide variety of tasks across different domains. Domain adaptation and class incremental learning deal with domain and task variability…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Marco Toldo , Umberto Michieli , Pietro Zanuttigh

The diffusion strategy for distributed learning from streaming data employs local stochastic gradient updates along with exchange of iterates over neighborhoods. In Part I [2] of this work we established that agents cluster around a network…

多智能体系统 · 计算机科学 2019-07-04 Stefan Vlaski , Ali H. Sayed

Modern deep learning is primarily an experimental science, in which empirical advances occasionally come at the expense of probabilistic rigor. Here we focus on one such example; namely the use of the categorical cross-entropy loss to model…

Discrete-time diffusion-based generative models and score matching methods have shown promising results in modeling high-dimensional image data. Recently, Song et al. (2021) show that diffusion processes that transform data into noise can…

机器学习 · 计算机科学 2021-10-01 Chin-Wei Huang , Jae Hyun Lim , Aaron Courville

We propose a learning problem involving adapting a pre-trained source model to the target domain for classifying all classes that appeared in the source data, using target data that covers only a partial label space. This problem is…

Diffusion models have gained traction as powerful algorithms for synthesizing high-quality images. Central to these algorithms is the diffusion process, a set of equations which maps data to noise in a way that can significantly affect…

机器学习 · 计算机科学 2024-11-12 Subham Sekhar Sahoo , Aaron Gokaslan , Chris De Sa , Volodymyr Kuleshov

Object frequency in the real world often follows a power law, leading to a mismatch between datasets with long-tailed class distributions seen by a machine learning model and our expectation of the model to perform well on all classes. We…

计算机视觉与模式识别 · 计算机科学 2020-03-25 Muhammad Abdullah Jamal , Matthew Brown , Ming-Hsuan Yang , Liqiang Wang , Boqing Gong

Traditional deep learning-based visual imitation learning techniques require a large amount of demonstration data for model training, and the pre-trained models are difficult to adapt to new scenarios. To address these limitations, we…

机器人学 · 计算机科学 2022-04-26 Dandan Zhang , Wen Fan , John Lloyd , Chenguang Yang , Nathan Lepora

As a new classification platform, deep learning has recently received increasing attention from researchers and has been successfully applied to many domains. In some domains, like bioinformatics and robotics, it is very difficult to…

机器学习 · 计算机科学 2018-08-13 Chuanqi Tan , Fuchun Sun , Tao Kong , Wenchang Zhang , Chao Yang , Chunfang Liu

Scaling by training on large datasets has been shown to enhance the quality and fidelity of image generation and manipulation with diffusion models; however, such large datasets are not always accessible in medical imaging due to cost and…

计算机视觉与模式识别 · 计算机科学 2025-04-14 Yousef Yeganeh , Azade Farshad , Ioannis Charisiadis , Marta Hasny , Martin Hartenberger , Björn Ommer , Nassir Navab , Ehsan Adeli