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Related papers: FewUser: Few-Shot Social User Geolocation via Cont…

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We uncover an ever-overlooked deficiency in the prevailing Few-Shot Learning (FSL) methods: the pre-trained knowledge is indeed a confounder that limits the performance. This finding is rooted from our causal assumption: a Structural Causal…

Machine Learning · Computer Science 2020-12-07 Zhongqi Yue , Hanwang Zhang , Qianru Sun , Xian-Sheng Hua

Few-shot classification is a challenging problem that aims to learn a model that can adapt to unseen classes given a few labeled samples. Recent approaches pre-train a feature extractor, and then fine-tune for episodic meta-learning. Other…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Philip Chikontwe , Soopil Kim , Sang Hyun Park

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to an unlabeled target domain. Contrastive learning (CL) in the context of UDA can help to better separate classes in feature space.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Mingxuan Gu , Sulaiman Vesal , Mareike Thies , Zhaoya Pan , Fabian Wagner , Mirabela Rusu , Andreas Maier , Ronak Kosti

Few-shot learning (FSL) is the task of learning to recognize previously unseen categories of images from a small number of training examples. This is a challenging task, as the available examples may not be enough to unambiguously determine…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Kun Yan , Zied Bouraoui , Ping Wang , Shoaib Jameel , Steven Schockaert

Few-shot learning (FSL) has attracted increasing attention in recent years but remains challenging, due to the intrinsic difficulty in learning to generalize from a few examples. This paper proposes an adaptive margin principle to improve…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Aoxue Li , Weiran Huang , Xu Lan , Jiashi Feng , Zhenguo Li , Liwei Wang

Foundation models have had a significant impact across various AI applications, enabling use cases that were previously impossible. Contrastive Visual Language Models (VLMs), in particular, have outperformed other techniques in many tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Aviad Barzilai , Yotam Gigi , Amr Helmy , Vered Silverman , Yehonathan Refael , Bolous Jaber , Tomer Shekel , George Leifman , Genady Beryozkin

Emerging interests have been brought to recognize previously unseen objects given very few training examples, known as few-shot object detection (FSOD). Recent researches demonstrate that good feature embedding is the key to reach favorable…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Bo Sun , Banghuai Li , Shengcai Cai , Ye Yuan , Chi Zhang

Previous feature alignment methods in Unsupervised domain adaptation(UDA) mostly only align global features without considering the mismatch between class-wise features. In this work, we propose a new coarse-to-fine feature alignment method…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Shiyu Tang , Peijun Tang , Yanxiang Gong , Zheng Ma , Mei Xie

Personalized fall detection models can significantly improve accuracy by adapting to individual motion patterns, yet their effectiveness is often limited by the scarcity of real-world fall data and the dominance of non-fall feedback…

Machine Learning · Computer Science 2026-03-19 Awatif Yasmin , Tarek Mahmud , Sana Alamgeer , Anne H. H. Ngu

We investigate contrastive learning in the federated setting through the lens of SimCLR and multi-view mutual information maximization. In doing so, we uncover a connection between contrastive representation learning and user verification;…

Machine Learning · Computer Science 2024-05-06 Christos Louizos , Matthias Reisser , Denis Korzhenkov

Sources of complementary information are connected when we link user accounts belonging to the same user across different platforms or devices. The expanded information promotes the development of a wide range of applications, such as…

Social and Information Networks · Computer Science 2022-01-11 Wei Chen , Weiqing Wang , Hongzhi Yin , Lei Zhao , Xiaofang Zhou

Cross-View Geo-Localisation is still a challenging task where additional modules, specific pre-processing or zooming strategies are necessary to determine accurate positions of images. Since different views have different geometries,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Fabian Deuser , Konrad Habel , Norbert Oswald

Vision-language models (VLMs) pre-trained on natural image and language data, such as CLIP, have exhibited significant potential in few-shot image recognition tasks, leading to development of various efficient transfer learning methods.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Dexia Chen , Wentao Zhang , Qianjie Zhu , Ping Hu , Weibing Li , Tong Zhang , Ruixuan Wang

Federated Learning (FL) enables multiple clients to collaboratively learn a machine learning model without exchanging their own local data. In this way, the server can exploit the computational power of all clients and train the model on a…

Machine Learning · Computer Science 2023-07-04 Song Wang , Xingbo Fu , Kaize Ding , Chen Chen , Huiyuan Chen , Jundong Li

The geolocation of online information is an essential component in any geospatial application. While most of the previous work on geolocation has focused on Twitter, in this paper we quantify and compare the performance of text-based…

Computation and Language · Computer Science 2018-11-20 Konstantinos Pappas , Mahmoud Azab , Rada Mihalcea

Socio-economic indicators like regional GDP, population, and education levels, are crucial to shaping policy decisions and fostering sustainable development. This research introduces GeoReg a regression model that integrates diverse data…

Machine Learning · Computer Science 2026-03-20 Kyeongjin Ahn , Sungwon Han , Seungeon Lee , Donghyun Ahn , Hyoshin Kim , Jungwon Kim , Jihee Kim , Sangyoon Park , Meeyoung Cha

Current state-of-the-art approaches for few-shot action recognition achieve promising performance by conducting frame-level matching on learned visual features. However, they generally suffer from two limitations: i) the matching procedure…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Xiang Wang , Shiwei Zhang , Zhiwu Qing , Changxin Gao , Yingya Zhang , Deli Zhao , Nong Sang

Few-shot Relation Extraction (FSRE) aims to extract relational facts from a sparse set of labeled corpora. Recent studies have shown promising results in FSRE by employing Pre-trained Language Models (PLMs) within the framework of…

Computation and Language · Computer Science 2024-03-12 Da Luo , Yanglei Gan , Rui Hou , Run Lin , Qiao Liu , Yuxiang Cai , Wannian Gao

A supervised ranking model, despite its advantage of being effective, usually involves complex processing - typically multiple stages of task-specific pre-training and fine-tuning. This has motivated researchers to explore simpler pipelines…

Information Retrieval · Computer Science 2024-10-08 Nilanjan Sinhababu , Andrew Parry , Debasis Ganguly , Debasis Samanta , Pabitra Mitra

Recent studies have revealed the intriguing few-shot learning ability of pretrained language models (PLMs): They can quickly adapt to a new task when fine-tuned on a small amount of labeled data formulated as prompts, without requiring…

Computation and Language · Computer Science 2023-05-15 Yu Meng , Martin Michalski , Jiaxin Huang , Yu Zhang , Tarek Abdelzaher , Jiawei Han