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Deep networks can learn to accurately recognize objects of a category by training on a large number of annotated images. However, a meta-learning challenge known as a low-shot image recognition task comes when only a few images with…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Mengting Chen , Xinggang Wang , Heng Luo , Yifeng Geng , Wenyu Liu

How to identify semantic relations among entities in a document when only a few labeled documents are available? Few-shot document-level relation extraction (FSDLRE) is crucial for addressing the pervasive data scarcity problem in…

Computation and Language · Computer Science 2023-10-25 Shiao Meng , Xuming Hu , Aiwei Liu , Shu'ang Li , Fukun Ma , Yawen Yang , Lijie Wen

Metric-based learning is a well-known family of methods for few-shot learning, especially in computer vision. Recently, they have been used in many natural language processing applications but not for slot tagging. In this paper, we explore…

Computation and Language · Computer Science 2021-03-04 Cennet Oguz , Ngoc Thang Vu

Multitask learning (MTL) leverages task-relatedness to enhance performance. With the emergence of multimodal data, tasks can now be referenced by multiple indices. In this paper, we employ high-order tensors, with each mode corresponding to…

Machine Learning · Computer Science 2023-08-31 Jiani Liu , Qinghua Tao , Ce Zhu , Yipeng Liu , Xiaolin Huang , Johan A. K. Suykens

Heterogeneous graph neural networks (GNNs) achieve strong performance on node classification tasks in a semi-supervised learning setting. However, as in the simpler homogeneous GNN case, message-passing-based heterogeneous GNNs may struggle…

Machine Learning · Computer Science 2022-10-24 Hongjoon Ahn , Yongyi Yang , Quan Gan , Taesup Moon , David Wipf

Aiming at expanding few-shot relations' coverage in knowledge graphs (KGs), few-shot knowledge graph completion (FKGC) has recently gained more research interests. Some existing models employ a few-shot relation's multi-hop neighbor…

Artificial Intelligence · Computer Science 2021-06-08 Guanglin Niu , Yang Li , Chengguang Tang , Ruiying Geng , Jian Dai , Qiao Liu , Hao Wang , Jian Sun , Fei Huang , Luo Si

Graph neural networks (GNNs) are important tools for transductive learning tasks, such as node classification in graphs, due to their expressive power in capturing complex interdependency between nodes. To enable graph neural network…

Machine Learning · Computer Science 2022-05-17 Man Wu , Shirui Pan , Lan Du , Xingquan Zhu

We propose a memory-based framework for real-time, data-efficient target analysis in forward-looking-sonar (FLS) imagery. Our framework relies on first removing non-discriminative details from the imagery using a small-scale…

Computer Vision and Pattern Recognition · Computer Science 2021-07-23 Isaac J. Sledge , Christopher D. Toole , Joseph A. Maestri , Jose C. Principe

Large-scale pre-trained Vision-Language Models (VLMs) have exhibited impressive zero-shot performance and transferability, allowing them to adapt to downstream tasks in a data-efficient manner. However, when only a few labeled samples are…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Ce Zhang , Simon Stepputtis , Katia Sycara , Yaqi Xie

Network embedding maps the nodes of a given network into a low-dimensional space such that the semantic similarities among the nodes can be effectively inferred. Most existing approaches use inner-product of node embedding to measure the…

Social and Information Networks · Computer Science 2021-01-21 Luodi Xie , Hong Shen , Jiaxin Ren

Graph Neural Network (GNN) is an emerging technique for graph-based learning tasks such as node classification. In this work, we reveal the vulnerability of GNN to the imbalance of node labels. Traditional solutions for imbalanced…

Machine Learning · Computer Science 2022-02-08 Xiaohe Li , Lijie Wen , Yawen Deng , Fuli Feng , Xuming Hu , Lei Wang , Zide Fan

Cross-domain few-shot hyperspectral image classification focuses on learning prior knowledge from a large number of labeled samples from source domains and then transferring the knowledge to the tasks which contain few labeled samples in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Chun Liu , Longwei Yang , Zheng Li , Wei Yang , Zhigang Han , Jianzhong Guo , Junyong Yu

Few-shot learning problem focuses on recognizing unseen classes given a few labeled images. In recent effort, more attention is paid to fine-grained feature embedding, ignoring the relationship among different distance metrics. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Jinxiang Lai , Siqian Yang , Guannan Jiang , Xi Wang , Yuxi Li , Zihui Jia , Xiaochen Chen , Jun Liu , Bin-Bin Gao , Wei Zhang , Yuan Xie , Chengjie Wang

Few-shot relation extraction with none-of-the-above (FsRE with NOTA) aims at predicting labels in few-shot scenarios with unknown classes. FsRE with NOTA is more challenging than the conventional few-shot relation extraction task, since the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Tianlin Guo , Lingling Zhang , Jiaxin Wang , Yuokuo Lei , Yifei Li , Haofen Wang , Jun Liu

Class prototype construction and matching are core aspects of few-shot action recognition. Previous methods mainly focus on designing spatiotemporal relation modeling modules or complex temporal alignment algorithms. Despite the promising…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Jiazheng Xing , Mengmeng Wang , Yudi Ruan , Bofan Chen , Yaowei Guo , Boyu Mu , Guang Dai , Jingdong Wang , Yong Liu

\textit{Graph neural networks} (GNNs) are effective models for many dynamical systems consisting of entities and relations. Although most GNN applications assume a single type of entity and relation, many situations involve multiple types…

Machine Learning · Computer Science 2023-10-12 Ferran Alet , Erica Weng , Tomás Lozano Pérez , Leslie Pack Kaelbling

Few-shot relation extraction (FSRE) focuses on recognizing novel relations by learning with merely a handful of annotated instances. Meta-learning has been widely adopted for such a task, which trains on randomly generated few-shot tasks to…

Computation and Language · Computer Science 2021-10-26 Jiale Han , Bo Cheng , Wei Lu

Zero-shot learning (ZSL) aims to leverage additional semantic information to recognize unseen classes. To transfer knowledge from seen to unseen classes, most ZSL methods often learn a shared embedding space by simply aligning visual…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Bowen Duan , Shiming Chen , Yufei Guo , Guo-Sen Xie , Weiping Ding , Yisong Wang

Time-series modeling has shown great promise in recent studies using the latest deep learning algorithms such as LSTM (Long Short-Term Memory). These studies primarily focused on watershed-scale rainfall-runoff modeling or streamflow…

Machine Learning · Computer Science 2021-10-22 Zhongrun Xiang , Ibrahim Demir

Few-shot learning has become essential for producing models that generalize from few examples. In this work, we identify that metric scaling and metric task conditioning are important to improve the performance of few-shot algorithms. Our…

Machine Learning · Computer Science 2019-01-28 Boris N. Oreshkin , Pau Rodriguez , Alexandre Lacoste