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Near-field channel estimation is a fundamental challenge in the sixth-generation (6G) wireless communication, where extremely large antenna arrays (ELAA) enable near-field communication (NFC) but introduce significant signal processing…

Signal Processing · Electrical Eng. & Systems 2025-05-21 Vu Tung Lam , Do Hai Son , Tran Thi Thuy Quynh , Le Trung Thanh

Predicting unseen relations that cannot be observed during the training phase is a challenging task in relation extraction. Previous works have made progress by matching the semantics between input instances and label descriptions. However,…

Computation and Language · Computer Science 2024-06-18 Shilong Li , Ge Bai , Zhang Zhang , Ying Liu , Chenji Lu , Daichi Guo , Ruifang Liu , Yong Sun

Entity alignment which aims at linking entities with the same meaning from different knowledge graphs (KGs) is a vital step for knowledge fusion. Existing research focused on learning embeddings of entities by utilizing structural…

Artificial Intelligence · Computer Science 2020-12-16 Yao Zhu , Hongzhi Liu , Zhonghai Wu , Yingpeng Du

To recognize the unseen classes with only few samples, few-shot learning (FSL) uses prior knowledge learned from the seen classes. A major challenge for FSL is that the distribution of the unseen classes is different from that of those…

Machine Learning · Computer Science 2020-07-28 Jiechao Guan , Zhiwu Lu , Tao Xiang , Ji-Rong Wen

Numerous Graph Neural Networks (GNNs) have been developed to tackle the challenge of Knowledge Graph Embedding (KGE). However, many of these approaches overlook the crucial role of relation information and inadequately integrate it with…

Machine Learning · Computer Science 2024-09-24 Peyman Baghershahi , Reshad Hosseini , Hadi Moradi

We study learning named entity recognizers in the presence of missing entity annotations. We approach this setting as tagging with latent variables and propose a novel loss, the Expected Entity Ratio, to learn models in the presence of…

Computation and Language · Computer Science 2021-08-17 Thomas Effland , Michael Collins

Graph attention networks (GATs) are powerful tools for analyzing graph data from various real-world scenarios. To learn representations for downstream tasks, GATs generally attend to all neighbors of the central node when aggregating the…

Machine Learning · Computer Science 2022-10-31 Tiantian He , Haicang Zhou , Yew-Soon Ong , Gao Cong

Few-shot semantic segmentation (FSS) aims to achieve novel objects segmentation with only a few annotated samples and has made great progress recently. Most of the existing FSS models focus on the feature matching between support and query…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jie Liu , Yanqi Bao , Wenzhe Yin , Haochen Wang , Yang Gao , Jan-Jakob Sonke , Efstratios Gavves

Usually, entity relation recognition systems either use a pipe-lined model that treats the entity tagging and relation identification as separate tasks or a joint model that simultaneously identifies the relation and entities. This paper…

Computation and Language · Computer Science 2020-09-21 Venkata Sasank Pagolu

The purpose of few-shot recognition is to recognize novel categories with a limited number of labeled examples in each class. To encourage learning from a supplementary view, recent approaches have introduced auxiliary semantic modalities…

Computer Vision and Pattern Recognition · Computer Science 2021-02-04 Siteng Huang , Min Zhang , Yachen Kang , Donglin Wang

Recently, Zero-Shot Node Classification (ZNC) has been an emerging and crucial task in graph data analysis. This task aims to predict nodes from unseen classes which are unobserved in the training process. Existing work mainly utilizes…

Machine Learning · Computer Science 2023-12-12 Likang Wu , Junji Jiang , Hongke Zhao , Hao Wang , Defu Lian , Mengdi Zhang , Enhong Chen

Few-shot graph classification aims at predicting classes for graphs, given limited labeled graphs for each class. To tackle the bottleneck of label scarcity, recent works propose to incorporate few-shot learning frameworks for fast…

Machine Learning · Computer Science 2022-05-10 Song Wang , Yushun Dong , Xiao Huang , Chen Chen , Jundong Li

Graph neural networks (GNNs) can learn effective node representations that significantly improve link prediction accuracy. However, most GNN-based link prediction algorithms are incompetent to predict weak ties connecting different…

Social and Information Networks · Computer Science 2024-10-22 Weiwei Gu , Linbi Lv , Gang Lu , Ruiqi Li

Incremental few-shot semantic segmentation (IFSS) aims to incrementally extend a semantic segmentation model to novel classes according to only a few pixel-level annotated data, while preserving its segmentation capability on previously…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Yuan Zhou , Xin Chen , Yanrong Guo , Shijie Hao , Richang Hong , Qi Tian

Over the past few years, a significant progress has been made in deep convolutional neural networks (CNNs)-based image recognition. This is mainly due to the strong ability of such networks in mining discriminative object pose and parts…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Asish Bera , Zachary Wharton , Yonghuai Liu , Nik Bessis , Ardhendu Behera

Knowledge graph completion (KGC) has become a focus of attention across deep learning community owing to its excellent contribution to numerous downstream tasks. Although recently have witnessed a surge of work on KGC, they are still…

Artificial Intelligence · Computer Science 2021-10-12 Junkang Wu , Wentao Shi , Xuezhi Cao , Jiawei Chen , Wenqiang Lei , Fuzheng Zhang , Wei Wu , Xiangnan He

Text-based knowledge graph completion methods take advantage of pre-trained language models (PLM) to enhance intrinsic semantic connections of raw triplets with detailed text descriptions. Typical methods in this branch map an input query…

Information Retrieval · Computer Science 2025-05-01 Duanyang Yuan , Sihang Zhou , Xiaoshu Chen , Dong Wang , Ke Liang , Xinwang Liu , Jian Huang

Few-shot object detection aims at detecting objects with few annotated examples, which remains a challenging research problem yet to be explored. Recent studies have shown the effectiveness of self-learned top-down attention mechanisms in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Xianyu Chen , Ming Jiang , Qi Zhao

This paper studies few-shot relation extraction, which aims at predicting the relation for a pair of entities in a sentence by training with a few labeled examples in each relation. To more effectively generalize to new relations, in this…

Machine Learning · Computer Science 2020-07-07 Meng Qu , Tianyu Gao , Louis-Pascal A. C. Xhonneux , Jian Tang

This work investigates the challenge of learning and reasoning for Commonsense Question Answering given an external source of knowledge in the form of a knowledge graph (KG). We propose a novel graph neural network architecture, called…

Computation and Language · Computer Science 2022-09-22 Chen Zheng , Parisa Kordjamshidi