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Random backpropagation (RBP) is a variant of the backpropagation algorithm for training neural networks, where the transpose of the forward matrices are replaced by fixed random matrices in the calculation of the weight updates. It is…

Machine Learning · Computer Science 2017-12-25 Pierre Baldi , Peter Sadowski , Zhiqin Lu

Accuracy anomaly detection in user-level network traffic is crucial for network security. Compared with existing models that passively detect specific anomaly classes with large labeled training samples, user-level network traffic contains…

Cryptography and Security · Computer Science 2025-01-16 Tongtong Feng , Qi Qi , Lingqi Guo , Jingyu Wang

The semantic gap is defined as the difference between the linguistic representations of the same concept, which usually leads to misunderstanding between individuals with different knowledge backgrounds. Since linguistically annotated…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Xiaolei Diao

Zero-shot (ZS) 3D anomaly detection is crucial for reliable industrial inspection, as it enables detecting and localizing defects without requiring any target-category training data. Existing approaches render 3D point clouds into 2D images…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Kaiqiang Li , Gang Li , Mingle Zhou , Min Li , Delong Han , Jin Wan

Anomaly detection in network traffic is crucial for maintaining the security of computer networks and identifying malicious activities. One of the primary approaches to anomaly detection are methods based on forecasting. Nevertheless,…

Machine Learning · Computer Science 2024-09-30 Josef Koumar , Karel Hynek , Tomáš Čejka , Pavel Šiška

Anomaly Detection System (ADS) is an essential part of a modern gateway Electronic Control Unit (ECU) to detect abnormal behaviors and attacks in vehicles. Among the existing attacks, ``one-time`` attack is the most challenging to be…

Cryptography and Security · Computer Science 2024-06-25 Yi Wang , Yuanjin Zheng , Yajun Ha

We present a novel deep reinforcement learning method to learn construction heuristics for vehicle routing problems. In specific, we propose a Multi-Decoder Attention Model (MDAM) to train multiple diverse policies, which effectively…

Machine Learning · Computer Science 2020-12-22 Liang Xin , Wen Song , Zhiguang Cao , Jie Zhang

Trajectory anomaly detection is crucial for effective decision-making in urban and human mobility management. Existing methods of trajectory anomaly detection generally focus on training a trajectory generative model and evaluating the…

Machine Learning · Computer Science 2024-10-28 Haoji Hu , Jina Kim , Jinwei Zhou , Sofia Kirsanova , JangHyeon Lee , Yao-Yi Chiang

Text-based person search aims to retrieve specific individuals across camera networks using natural language descriptions. However, current benchmarks often exhibit biases towards common actions like walking or standing, neglecting the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Shuyu Yang , Yaxiong Wang , Li Zhu , Zhedong Zheng

Generalist Anomaly Detection (GAD) aims to train a unified model on an original domain that can detect anomalies in new target domains. Previous GAD methods primarily use only normal samples as references, overlooking the valuable…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Yuexin Wang , Xiaolei Wang , Yizheng Gong , Jimin Xiao

Continuously evolving cyber-attacks against industrial networks reduce the effectiveness of signature-based detection methods. Once malware has infiltrated a network (for example, entering via an unsecured device), it can infect further…

Cryptography and Security · Computer Science 2026-05-26 Sevvandi Kandanaarachchi , Mahdi Abolghasemi , Hideya Ochiai , Asha Rao , Conrad Sanderson

Much of the world's data is streaming, time-series data, where anomalies give significant information in critical situations; examples abound in domains such as finance, IT, security, medical, and energy. Yet detecting anomalies in…

Artificial Intelligence · Computer Science 2016-11-17 Alexander Lavin , Subutai Ahmad

Beam search is widely used for approximate decoding in structured prediction problems. Models often use a beam at test time but ignore its existence at train time, and therefore do not explicitly learn how to use the beam. We develop an…

Machine Learning · Statistics 2019-06-26 Renato Negrinho , Matthew R. Gormley , Geoffrey J. Gordon

This paper proposes and experimentally validates a Bayesian network model of a range finder adapted to dynamic environments. All modeling assumptions are rigorously explained, and all model parameters have a physical interpretation. This…

Artificial Intelligence · Computer Science 2014-01-16 Tinne De Laet , Joris De Schutter , Herman Bruyninckx

The complexity of modern electro-mechanical systems require the development of sophisticated diagnostic methods like anomaly detection capable of detecting deviations. Conventional anomaly detection approaches like signal processing and…

Machine Learning · Computer Science 2025-01-07 Abhishek Srinivasan , Varun Singapuri Ravi , Juan Carlos Andresen , Anders Holst

This paper proposes a structure-aware driven scheduling graph modeling method to improve the accuracy and representation capability of anomaly identification in scheduling behaviors of complex systems. The method first designs a…

Machine Learning · Computer Science 2025-12-23 Ning Lyu , Junjie Jiang , Lu Chang , Chihui Shao , Feng Chen , Chong Zhang

Deep learning has now become the de facto approach to the recognition of anomalies in medical imaging. Their 'black box' way of classifying medical images into anomaly labels poses problems for their acceptance, particularly with…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Satyananda Kashyap , Alexandros Karargyris , Joy Wu , Yaniv Gur , Arjun Sharma , Ken C. L. Wong , Mehdi Moradi , Tanveer Syeda-Mahmood

Many real-world scenarios involving streaming information can be represented as temporal graphs, where data flows through dynamic changes in edges over time. Anomaly detection in this context has the objective of identifying unusual…

Machine Learning · Computer Science 2025-12-01 Simone Mungari , Albert Bifet , Giuseppe Manco , Bernhard Pfahringer

This paper studies the multi-robot reliable navigation problem in uncertain topological networks, which aims at maximizing the robot team's on-time arrival probabilities in the face of road network uncertainties. The uncertainty in these…

Anomaly detection is the task of detecting data which differs from the normal behaviour of a system in a given context. In order to approach this problem, data-driven models can be learned to predict current or future observations.…

Machine Learning · Computer Science 2020-10-30 Benedikt Eiteneuer , Oliver Niggemann
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