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Learning visual semantic similarity is a critical challenge in bridging the gap between images and texts. However, there exist inherent variations between vision and language data, such as information density, i.e., images can contain…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yang Liu , Mengyuan Liu , Shudong Huang , Jiancheng Lv

Learning a latent embedding to understand the underlying nature of data distribution is often formulated in Euclidean spaces with zero curvature. However, the success of the geometry constraints, posed in the embedding space, indicates that…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Jie Hong , Pengfei Fang , Weihao Li , Junlin Han , Lars Petersson , Mehrtash Harandi

Recent advances in AI-driven image generation have introduced new challenges for verifying the authenticity of digital evidence in forensic investigations. Modern generative models can produce visually consistent forgeries that evade…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Opeyemi Bamigbade , Mark Scanlon , John Sheppard

Standard Adjacency Spectral Embedding (ASE) relies on a global low-rank assumption often incompatible with the sparse, transitive structure of real-world networks, causing local geometric features to be 'smeared'. To address this, we…

Machine Learning · Statistics 2026-03-13 Hannah Sansford , Nick Whiteley , Patrick Rubin-Delanchy

Classifying time series data using neural networks is a challenging problem when the length of the data varies. Video object trajectories, which are key to many of the visual surveillance applications, are often found to be of varying…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy , Adway Mitra

Learning-based methods have become increasingly popular for solving vehicle routing problems due to their near-optimal performance and fast inference speed. Among them, the combination of deep reinforcement learning and graph representation…

Machine Learning · Computer Science 2024-05-22 Zhenwei Wang , Ruibin Bai , Fazlullah Khan , Ender Ozcan , Tiehua Zhang

Detecting anomalous edges and nodes in dynamic networks is critical in various areas, such as social media, computer networks, and so on. Recent approaches leverage network embedding technique to learn how to generate node representations…

Social and Information Networks · Computer Science 2020-07-15 Chenming Yang , Liang Zhou , Hui Wen , Zhiheng Zhou , Yue Wu

Embedding a web-scale information network into a low-dimensional vector space facilitates tasks such as link prediction, classification, and visualization. Past research has addressed the problem of extracting such embeddings by adopting…

Social and Information Networks · Computer Science 2018-03-14 Anton Tsitsulin , Davide Mottin , Panagiotis Karras , Emmanuel Müller

Visual anomaly detection in real-world industrial settings faces two major limitations. First, most existing methods are trained on purely normal data or on unlabeled datasets assumed to be predominantly normal, presuming the absence of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Anindya Sundar Das , Monowar Bhuyan

Video Anomaly Detection (VAD) represents a challenging and prominent research task within computer vision. In recent years, Pose-based Video Anomaly Detection (PAD) has drawn considerable attention from the research community due to several…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi

Anomaly detection is a common analytical task that aims to identify rare cases that differ from the typical cases that make up the majority of a dataset. When applied to the analysis of event sequence data, the task of anomaly detection can…

Human-Computer Interaction · Computer Science 2020-04-16 Shunan Guo , Zhuochen Jin , Qing Chen , David Gotz , Hongyuan Zha , Nan Cao

Anomaly detection plays a crucial role in various real-world applications, including healthcare and finance systems. Owing to the limited number of anomaly labels in these complex systems, unsupervised anomaly detection methods have…

Machine Learning · Computer Science 2023-10-10 Zongyuan Huang , Baohua Zhang , Guoqiang Hu , Longyuan Li , Yanyan Xu , Yaohui Jin

Graph anomaly detection (GAD) is a vital task in graph-based machine learning and has been widely applied in many real-world applications. The primary goal of GAD is to capture anomalous nodes from graph datasets, which evidently deviate…

Machine Learning · Computer Science 2022-12-05 Jingcan Duan , Siwei Wang , Pei Zhang , En Zhu , Jingtao Hu , Hu Jin , Yue Liu , Zhibin Dong

The goal of anomaly detection is to identify examples that deviate from normal or expected behavior. We tackle this problem for images. We consider a two-phase approach. First, using normal examples, a convolutional autoencoder (CAE) is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Natasa Sarafijanovic-Djukic , Jesse Davis

A central goal in the cognitive sciences is the development of numerical models for mental representations of object concepts. This paper introduces Variational Interpretable Concept Embeddings (VICE), an approximate Bayesian method for…

Semiconductor manufacturing is a complex, multistage process. Automated visual inspection of Scanning Electron Microscope (SEM) images is indispensable for minimizing equipment downtime and containing costs. Most previous research considers…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Manuel Barusco , Francesco Borsatti , Youssef Ben Khalifa , Davide Dalle Pezze , Gian Antonio Susto

Unsupervised anomaly detection is a challenging task. Autoencoders (AEs) or generative models are often employed to model the data distribution of normal inputs and subsequently identify anomalous, out-of-distribution inputs by high…

Machine Learning · Computer Science 2025-06-12 Yalin Liao , Austin J. Brockmeier

Time-series anomaly detection (TSAD) requires identifying both immediate Point Anomalies and long-range Context Anomalies. However, existing foundation models face a fundamental trade-off: 1D temporal models provide fine-grained pointwise…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Yingyuan Yang , Tian Lan , Yifei Gao , Yimeng Lu , Wenjun He , Meng Wang , Chenghao Liu , Chen Zhang

Graph anomaly detection is a popular and vital task in various real-world scenarios, which has been studied for several decades. Recently, many studies extending deep learning-based methods have shown preferable performance on graph anomaly…

Machine Learning · Computer Science 2025-05-13 Jing Ren , Mingliang Hou , Zhixuan Liu , Xiaomei Bai

Learning visual representations with self-supervised learning has become popular in computer vision. The idea is to design auxiliary tasks where labels are free to obtain. Most of these tasks end up providing data to learn specific kinds of…

Computer Vision and Pattern Recognition · Computer Science 2017-08-16 Xiaolong Wang , Kaiming He , Abhinav Gupta