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Multimodal data empowers machine learning models to better understand the world from various perspectives. In this work, we study the combination of \emph{text and graph} modalities, a challenging but understudied combination which is…

Social and Information Networks · Computer Science 2023-07-24 Yuexin Li , Bryan Hooi

In this paper, we investigate the degree of explainability of graph neural networks (GNNs). Existing explainers work by finding global/local subgraphs to explain a prediction, but they are applied after a GNN has already been trained. Here,…

Machine Learning · Computer Science 2022-12-21 Indro Spinelli , Simone Scardapane , Aurelio Uncini

Most real-world knowledge graphs are characterized by a long-tail relation frequency distribution where a significant fraction of relations occurs only a handful of times. This observation has given rise to recent interest in low-shot…

Machine Learning · Computer Science 2020-10-26 Mehrnoosh Mirtaheri , Mohammad Rostami , Xiang Ren , Fred Morstatter , Aram Galstyan

We propose a Few-shot Learning pipeline for 3D skeleton-based action recognition by Joint tEmporal and cAmera viewpoiNt alIgnmEnt (JEANIE). To factor out misalignment between query and support sequences of 3D body joints, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Lei Wang , Piotr Koniusz

Multimodal few-shot learning is challenging due to the large domain gap between vision and language modalities. Existing methods are trying to communicate visual concepts as prompts to frozen language models, but rely on hand-engineered…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Ivona Najdenkoska , Xiantong Zhen , Marcel Worring

Graph classification is an important learning task for graph-structured data. Graph neural networks (GNNs) have recently gained growing attention in graph learning and have shown significant improvements in many important graph problems.…

Machine Learning · Computer Science 2024-01-31 Tao Wen , Elynn Chen , Yuzhou Chen

In the realm of 3D-computer vision applications, point cloud few-shot learning plays a critical role. However, it poses an arduous challenge due to the sparsity, irregularity, and unordered nature of the data. Current methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Tejas Anvekar , Dena Bazazian

Prompt learning has demonstrated impressive efficacy in the fine-tuning of multimodal large models to a wide range of downstream tasks. Nonetheless, applying existing prompt learning methods for the diagnosis of neurological disorder still…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Liang Peng , Songyue Cai , Zongqian Wu , Huifang Shang , Xiaofeng Zhu , Xiaoxiao Li

Graph few-shot learning has garnered significant attention for its ability to rapidly adapt to downstream tasks with limited labeled data, sparking considerable interest among researchers. Recent advancements in graph few-shot learning…

Machine Learning · Computer Science 2025-01-13 Yonghao Liu , Fausto Giunchiglia , Ximing Li , Lan Huang , Xiaoyue Feng , Renchu Guan

Few-shot Learning aims to learn classifiers for new classes with only a few training examples per class. Existing meta-learning or metric-learning based few-shot learning approaches are limited in handling diverse domains with various…

Machine Learning · Computer Science 2019-01-30 Yu Cheng , Mo Yu , Xiaoxiao Guo , Bowen Zhou

In this paper, we investigate a realistic but underexplored problem, called few-shot temporal knowledge graph reasoning, that aims to predict future facts for newly emerging entities based on extremely limited observations in evolving…

Machine Learning · Computer Science 2022-10-18 Ruijie Wang , Zheng Li , Dachun Sun , Shengzhong Liu , Jinning Li , Bing Yin , Tarek Abdelzaher

Semi-supervised learning on graphs is an important problem in the machine learning area. In recent years, state-of-the-art classification methods based on graph neural networks (GNNs) have shown their superiority over traditional ones such…

Machine Learning · Computer Science 2021-03-05 Cheng Yang , Jiawei Liu , Chuan Shi

Training graph neural networks (GNNs) on large graphs is complex and extremely time consuming. This is attributed to overheads caused by sparse matrix multiplication, which are sidestepped when training multi-layer perceptrons (MLPs) with…

Machine Learning · Computer Science 2023-04-11 Xiaotian Han , Tong Zhao , Yozen Liu , Xia Hu , Neil Shah

Predicting the words that a child is going to learn next can be useful for boosting language acquisition, and such predictions have been shown to be possible with both neural network techniques (looking at changes in the vocabulary state…

Computation and Language · Computer Science 2025-03-24 Andrew Roxburgh , Floriana Grasso , Terry R. Payne

Graph neural networks (GNNs) have achieved tremendous success on multiple graph-based learning tasks by fusing network structure and node features. Modern GNN models are built upon iterative aggregation of neighbor's/proximity features by…

Machine Learning · Computer Science 2021-06-15 Susheel Suresh , Vinith Budde , Jennifer Neville , Pan Li , Jianzhu Ma

Modeling multivariate time series has long been a subject that has attracted researchers from a diverse range of fields including economics, finance, and traffic. A basic assumption behind multivariate time series forecasting is that its…

Machine Learning · Computer Science 2020-05-26 Zonghan Wu , Shirui Pan , Guodong Long , Jing Jiang , Xiaojun Chang , Chengqi Zhang

As a structured representation of the image content, the visual scene graph (visual relationship) acts as a bridge between computer vision and natural language processing. Existing models on the scene graph generation task notoriously…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Yuyu Guo , Jingkuan Song , Lianli Gao , Heng Tao Shen

Predicting the evolution of the brain network, also called connectome, by foreseeing changes in the connectivity weights linking pairs of anatomical regions makes it possible to spot connectivity-related neurological disorders in earlier…

Machine Learning · Computer Science 2021-09-17 Şeymanur Aktı , Doğay Kamar , Özgür Anıl Özlü , Ihsan Soydemir , Muhammet Akcan , Abdullah Kul , Islem Rekik

Graph signal processing deals with algorithms and signal representations that leverage graph structures for multivariate data analysis. Often said graph topology is not readily available and may be time-varying, hence (dynamic) graph…

Signal Processing · Electrical Eng. & Systems 2024-09-20 Hector Chahuara , Gonzalo Mateos

Text-attributed Graphs (TAGs) are commonly found in the real world, such as social networks and citation networks, and consist of nodes represented by textual descriptions. Currently, mainstream machine learning methods on TAGs involve a…

Social and Information Networks · Computer Science 2023-09-07 Xuanwen Huang , Kaiqiao Han , Dezheng Bao , Quanjin Tao , Zhisheng Zhang , Yang Yang , Qi Zhu