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Object counting models suffer when deployed across domains with differing density variety, since density shifts are inherently task-relevant and violate standard domain adaptation assumptions. To address this, we propose a theoretical…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Zhuonan Liang , Dongnan Liu , Jianan Fan , Yaxuan Song , Qiang Qu , Runnan Chen , Yu Yao , Peng Fu , Weidong Cai

Getting deep convolutional neural networks to perform well requires a large amount of training data. When the available labelled data is small, it is often beneficial to use transfer learning to leverage a related larger dataset (source) in…

机器学习 · 计算机科学 2021-10-26 Lukas Hedegaard Morsing , Omar Ali Sheikh-Omar , Alexandros Iosifidis

Domain adaptive semantic segmentation is the task of generating precise and dense predictions for an unlabeled target domain using a model trained on a labeled source domain. While significant efforts have been devoted to improving…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Nazanin Moradinasab , Hassan Jafarzadeh , Donald E. Brown

We propose Regularized Learning under Label shifts (RLLS), a principled and a practical domain-adaptation algorithm to correct for shifts in the label distribution between a source and a target domain. We first estimate importance weights…

机器学习 · 计算机科学 2020-08-10 Kamyar Azizzadenesheli , Anqi Liu , Fanny Yang , Animashree Anandkumar

As a crucial step toward real-world learning scenarios with changing environments, dataset shift theory and invariant representation learning algorithm have been extensively studied to relax the identical distribution assumption in…

机器学习 · 计算机科学 2024-06-25 You-Wei Luo , Chuan-Xian Ren

Practitioners often face the challenge of deploying prediction models in new environments with shifted distributions of covariates and responses. With observational data, such shifts are often driven by unobserved confounding, and can in…

机器学习 · 计算机科学 2026-04-02 Kulunu Dharmakeerthi , YoonHaeng Hur , Tengyuan Liang

An important goal common to domain adaptation and causal inference is to make accurate predictions when the distributions for the source (or training) domain(s) and target (or test) domain(s) differ. In many cases, these different…

机器学习 · 计算机科学 2022-08-31 Sara Magliacane , Thijs van Ommen , Tom Claassen , Stephan Bongers , Philip Versteeg , Joris M. Mooij

Discrepancy between training and testing domains is a fundamental problem in the generalization of machine learning techniques. Recently, several approaches have been proposed to learn domain invariant feature representations through…

机器学习 · 统计学 2019-03-18 Yitong Li , Michael Murias , Samantha Major , Geraldine Dawson , David E. Carlson

Air quality monitoring is becoming an essential task with rising awareness about air quality. Low cost air quality sensors are easy to deploy but are not as reliable as the costly and bulky reference monitors. The low quality sensors can be…

机器学习 · 计算机科学 2022-10-04 Swapnil Dey , Vipul Arora , Sachchida Nand Tripathi

Contrastive learning is among the most popular and powerful approaches for self-supervised representation learning, where the goal is to map semantically similar samples close together while separating dissimilar ones in the latent space.…

机器学习 · 统计学 2025-12-03 Ali Alvandi , Mina Rezaei

The major challenge in today's computer vision scenario is the availability of good quality labeled data. In a field of study like image classification, where data is of utmost importance, we need to find more reliable methods which can…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Aashish Dhawan , Divyanshu Mudgal

Domain adaptation aims to use training data from one or multiple source domains to learn a hypothesis that can be generalized to a different, but related, target domain. As such, having a reliable measure for evaluating the discrepancy of…

机器学习 · 计算机科学 2024-05-31 Wenzhe Yin , Shujian Yu , Yicong Lin , Jie Liu , Jan-Jakob Sonke , Efstratios Gavves

Multi-source domain adaptation aims at leveraging the knowledge from multiple tasks for predicting a related target domain. Hence, a crucial aspect is to properly combine different sources based on their relations. In this paper, we…

机器学习 · 计算机科学 2021-06-16 Changjian Shui , Zijian Li , Jiaqi Li , Christian Gagné , Charles Ling , Boyu Wang

We address the problem of unsupervised domain adaptation when the source domain differs from the target domain because of a shift in the distribution of a latent subgroup. When this subgroup confounds all observed data, neither covariate…

Domain adaptation (DA) paves the way for label annotation and dataset bias issues by the knowledge transfer from a label-rich source domain to a related but unlabeled target domain. A mainstream of DA methods is to align the feature…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Shuang Li , Mixue Xie , Fangrui Lv , Chi Harold Liu , Jian Liang , Chen Qin , Wei Li

In the absence of labeled target data, unsupervised domain adaptation approaches seek to align the marginal distributions of the source and target domains in order to train a classifier for the target. Unsupervised domain alignment…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Sachin Chhabra , Hemanth Venkateswara , Baoxin Li

Domain adaptation aims to mitigate the domain shift problem when transferring knowledge from one domain into another similar but different domain. However, most existing works rely on extracting marginal features without considering class…

计算机视觉与模式识别 · 计算机科学 2021-05-20 Youshan Zhang , Brian D. Davison

Conventional domain adaptation (DA) techniques aim to improve domain transferability by learning domain-invariant representations; while concurrently preserving the task-discriminability knowledge gathered from the labeled source data.…

计算机视觉与模式识别 · 计算机科学 2022-06-17 Jogendra Nath Kundu , Akshay Kulkarni , Suvaansh Bhambri , Deepesh Mehta , Shreyas Kulkarni , Varun Jampani , R. Venkatesh Babu

Domain generalization involves learning a classifier from a heterogeneous collection of training sources such that it generalizes to data drawn from similar unknown target domains, with applications in large-scale learning and personalized…

机器学习 · 计算机科学 2021-12-24 Xavier Thomas , Dhruv Mahajan , Alex Pentland , Abhimanyu Dubey

For tabular datasets, the change in the relationship between the label and covariates ($Y|X$-shifts) is common due to missing variables (a.k.a. confounders). Since it is impossible to generalize to a completely new and unknown domain, we…

机器学习 · 计算机科学 2024-10-11 Yibo Zeng , Jiashuo Liu , Henry Lam , Hongseok Namkoong