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We introduce a self-supervised approach for learning node and graph level representations by contrasting structural views of graphs. We show that unlike visual representation learning, increasing the number of views to more than two or…

机器学习 · 计算机科学 2020-06-11 Kaveh Hassani , Amir Hosein Khasahmadi

We describe a computationally efficient, stochastic graph-regularization technique that can be utilized for the semi-supervised training of deep neural networks in a parallel or distributed setting. We utilize a technique, first described…

机器学习 · 统计学 2018-05-31 Sunil Thulasidasan , Jeffrey Bilmes , Garrett Kenyon

Cognitive Diagnosis~(CD), which leverages students and exercise data to predict students' proficiency levels on different knowledge concepts, is one of fundamental components in Intelligent Education. Due to the scarcity of student-exercise…

机器学习 · 计算机科学 2024-06-06 Dacao Zhang , Kun Zhang , Le Wu , Mi Tian , Richang Hong , Meng Wang

Self-supervised heterogeneous graph learning (SHGL) has shown promising potential in diverse scenarios. However, while existing SHGL methods share a similar essential with clustering approaches, they encounter two significant limitations:…

人工智能 · 计算机科学 2024-12-03 Yujie Mo , Zhihe Lu , Runpeng Yu , Xiaofeng Zhu , Xinchao Wang

Graph Semi-Supervised learning is an important data analysis tool, where given a graph and a set of labeled nodes, the aim is to infer the labels to the remaining unlabeled nodes. In this paper, we start by considering an optimization-based…

机器学习 · 计算机科学 2023-09-26 Sara Venturini , Andrea Cristofari , Francesco Rinaldi , Francesco Tudisco

Fine-grained image classification involves identifying different subcategories of a class which possess very subtle discriminatory features. Fine-grained datasets usually provide bounding box annotations along with class labels to aid the…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Farha Al Breiki , Muhammad Ridzuan , Rushali Grandhe

Cognitive diagnosis is a fundamental and critical task in learning assessment, which aims to infer students' proficiency on knowledge concepts from their response logs. Current works assume each knowledge concept will certainly be tested…

人工智能 · 计算机科学 2024-10-21 Miao Zhang , Ziming Wang , Runtian Xing , Kui Xiao , Zhifei Li , Yan Zhang , Chang Tang

Sequential recommendation effectively addresses information overload by modeling users' temporal and sequential interaction patterns. To overcome the limitations of supervision signals, recent approaches have adopted self-supervised…

信息检索 · 计算机科学 2024-06-03 Yuxi Liu , Lianghao Xia , Chao Huang

In recent years, deep learning on graphs has achieved remarkable success in various domains. However, the reliance on annotated graph data remains a significant bottleneck due to its prohibitive cost and time-intensive nature. To address…

Generalized Class Discovery (GCD) plays a pivotal role in discerning both known and unknown categories from unlabeled datasets by harnessing the insights derived from a labeled set comprising recognized classes. A significant limitation in…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Ziyun Li , Christoph Meinel , Haojin Yang

Spatial reasoning on multi-view line drawings by state-of-the-art supervised deep networks is recently shown with puzzling low performances on the SPARE3D dataset. Based on the fact that self-supervised learning is helpful when a large…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Siyuan Xiang , Anbang Yang , Yanfei Xue , Yaoqing Yang , Chen Feng

The goal in network state prediction (NSP) is to classify the global state (label) associated with features embedded in a graph. This graph structure encoding feature relationships is the key distinctive aspect of NSP compared to classical…

机器学习 · 计算机科学 2019-04-02 Lin Zhang , Petko Bogdanov

Traditionally, convolutional neural networks need large amounts of data labelled by humans to train. Self supervision has been proposed as a method of dealing with small amounts of labelled data. The aim of this study is to determine…

图像与视频处理 · 电气工程与系统科学 2020-11-23 Nicolas Ewen , Naimul Khan

Graph neural networks have shown superior performance in a wide range of applications providing a powerful representation of graph-structured data. Recent works show that the representation can be further improved by auxiliary tasks.…

机器学习 · 计算机科学 2021-02-09 Dasol Hwang , Jinyoung Park , Sunyoung Kwon , Kyung-Min Kim , Jung-Woo Ha , Hyunwoo J. Kim

We present a simple, yet effective, approach to Semi-Supervised Learning. Our approach is based on estimating density-based distances (DBD) using a shortest path calculation on a graph. These Graph-DBD estimates can then be used in any…

机器学习 · 计算机科学 2012-02-20 Avleen S. Bijral , Nathan Ratliff , Nathan Srebro

Single subject prediction of brain disorders from neuroimaging data has gained increasing attention in recent years. Yet, for some heterogeneous disorders such as major depression disorder (MDD) and autism spectrum disorder (ASD), the…

机器学习 · 计算机科学 2022-06-08 Ahmed El Gazzar , Rajat Mani Thomas , Guido Van Wingen

Real-world visual data often exhibits a long-tailed distribution, where some ''head'' classes have a large number of samples, yet only a few samples are available for ''tail'' classes. Such imbalanced distribution causes a great challenge…

计算机视觉与模式识别 · 计算机科学 2020-03-11 Junjie Zhang , Lingqiao Liu , Peng Wang , Chunhua Shen

Video representation learning is a vital problem for classification task. Recently, a promising unsupervised paradigm termed self-supervised learning has emerged, which explores inherent supervisory signals implied in massive data for…

计算机视觉与模式识别 · 计算机科学 2018-04-27 Chenrui Zhang , Yuxin Peng

Subjective cognitive decline (SCD) is a preclinical stage of Alzheimer's disease (AD) which occurs even before mild cognitive impairment (MCI). Progressive SCD will convert to MCI with the potential of further evolving to AD. Therefore,…

计算机视觉与模式识别 · 计算机科学 2023-02-17 Hao Guan , Ling Yue , Pew-Thian Yap , Shifu Xiao , Andrea Bozoki , Mingxia Liu

Graph Neural Networks (GNNs) have proved to be an effective representation learning framework for graph-structured data, and have achieved state-of-the-art performance on many practical predictive tasks, such as node classification, link…

机器学习 · 计算机科学 2021-04-13 Yang Ye , Shihao Ji