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The increasing number of surveillance cameras and security concerns have made automatic violent activity detection from surveillance footage an active area for research. Modern deep learning methods have achieved good accuracy in violence…

计算机视觉与模式识别 · 计算机科学 2022-11-09 Dipon Kumar Ghosh , Amitabha Chakrabarty

Anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. We propose a deep convolutional neural network (CNN) that addresses this problem by learning a correspondence between common…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

Modern organizations increasingly face cybersecurity incidents driven by human behaviour rather than technical failures. To address this, we propose a conceptual security framework that integrates a hybrid Convolutional Neural Network-Long…

密码学与安全 · 计算机科学 2026-02-24 Duy Anh Ta , Farnaz Farid , Farhad Ahamed , Ala Al-Areqi , Robert Beutel , Tamara Watson , Alana Maurushat

An approach for real-time network monitoring in terms of numerical time-dependant functions of protocol parameters is suggested. Applying complex systems theory for information f{l}ow analysis of networks, the information traffic is…

密码学与安全 · 计算机科学 2007-05-23 Vladimir Gudkov , Joseph E. Johnson

The last few years have seen an increasing wave of attacks with serious economic and privacy damages, which evinces the need for accurate Network Intrusion Detection Systems (NIDS). Recent works propose the use of Machine Learning (ML)…

密码学与安全 · 计算机科学 2021-08-02 David Pujol-Perich , José Suárez-Varela , Albert Cabellos-Aparicio , Pere Barlet-Ros

Network security has been an active research topic for long. One critical issue is improving the anomaly detection capability of intrusion detection systems (IDSs), such as firewalls. However, existing network anomaly datasets are out of…

密码学与安全 · 计算机科学 2021-03-11 Lei Chen , Shao-En Weng , Chu-Jun Peng , Hong-Han Shuai , Wen-Huang Cheng

Falls present a significant global public health challenge, especially in today's aging society, underscoring the importance of developing an effective fall detection system. Non-invasive radio-frequency (RF) based fall detection has…

人机交互 · 计算机科学 2023-05-01 Sijie Ji , Yaxiong Xie , Mo Li

Real-time lightweight time series anomaly detection has become increasingly crucial in cybersecurity and many other domains. Its ability to adapt to unforeseen pattern changes and swiftly identify anomalies enables prompt responses and…

机器学习 · 计算机科学 2024-07-29 Ming-Chang Lee , Jia-Chun Lin , Sokratis Katsikas

We propose a deep convolutional neural network (CNN) for face detection leveraging on facial attributes based supervision. We observe a phenomenon that part detectors emerge within CNN trained to classify attributes from uncropped face…

计算机视觉与模式识别 · 计算机科学 2017-08-28 Shuo Yang , Ping Luo , Chen Change Loy , Xiaoou Tang

Credit card fraud is a major issue nowadays, costing huge money and affecting trust in financial systems. Traditional fraud detection methods often fail to detect advanced and growing fraud techniques. This study focuses on using Graph…

密码学与安全 · 计算机科学 2025-04-01 Irin Sultana , Syed Mustavi Maheen , Naresh Kshetri , Md Nasim Fardous Zim

Many cybersecurity problems that require real-time decision-making based on temporal observations can be abstracted as a sequence modeling problem, e.g., network intrusion detection from a sequence of arriving packets. Existing approaches…

密码学与安全 · 计算机科学 2023-12-19 Jingdi Chen , Hanhan Zhou , Yongsheng Mei , Gina Adam , Nathaniel D. Bastian , Tian Lan

Analysing malware is important to understand how malicious software works and to develop appropriate detection and prevention methods. Dynamic analysis can overcome evasion techniques commonly used to bypass static analysis and provide…

密码学与安全 · 计算机科学 2023-10-30 Baskoro Adi Pratomo , Toby Jackson , Pete Burnap , Andrew Hood , Eirini Anthi

Ransomware is considered as a significant threat for most enterprises since the past few years. In scenarios wherein users can access all files on a shared server, one infected host can lock the access to all shared files. We propose a tool…

密码学与安全 · 计算机科学 2022-02-16 Eduardo Berrueta , Daniel Morato , Eduardo Magaña , Mikel Izal

Advanced deepfake technologies are blurring the lines between real and fake, presenting both revolutionary opportunities and alarming threats. While it unlocks novel applications in fields like entertainment and education, its malicious use…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Qihao Shen , Jiaxing Xuan , Zhenguang Liu , Sifan Wu , Yutong Xie , Zhaoyan Ming , Yingying Jiao , kui Ren

Deep neural networks (DNNs) are now commonly used in many domains. However, they are vulnerable to adversarial attacks: carefully crafted perturbations on data inputs that can fool a model into making incorrect predictions. Despite…

机器学习 · 计算机科学 2020-09-09 Nilaksh Das , Haekyu Park , Zijie J. Wang , Fred Hohman , Robert Firstman , Emily Rogers , Duen Horng Chau

Time series anomaly detection plays a critical role in automated monitoring systems. Most previous deep learning efforts related to time series anomaly detection were based on recurrent neural networks (RNN). In this paper, we propose a…

机器学习 · 计算机科学 2019-06-03 Tailai Wen , Roy Keyes

Technological advancements in cryptocurrency markets have increased accessibility for investors, but concurrently exposed them to the risks of market manipulations. Existing fraud detection mechanisms typically rely on machine learning…

机器学习 · 计算机科学 2026-04-28 Lidia Losavio , Luca Persia , Madan Sathe , Dimosthenis Pasadakis

In recent years, the amount of Cyber Security data generated in the form of unstructured texts, for example, social media resources, blogs, articles, and so on has exceptionally increased. Named Entity Recognition (NER) is an initial step…

计算与语言 · 计算机科学 2020-04-02 Simran K , Sriram S , Vinayakumar R , Soman KP

The rapid expansion of e-commerce and the widespread use of credit cards in online purchases and financial transactions have significantly heightened the importance of promptly and accurately detecting credit card fraud (CCF). Not only do…

In this work, we consider the problem of pedestrian detection in natural scenes. Intuitively, instances of pedestrians with different spatial scales may exhibit dramatically different features. Thus, large variance in instance scales, which…

计算机视觉与模式识别 · 计算机科学 2016-06-28 Jianan Li , Xiaodan Liang , ShengMei Shen , Tingfa Xu , Jiashi Feng , Shuicheng Yan