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Incidents of organized cybercrime are rising because of criminals are reaping high financial rewards while incurring low costs to commit crime. As the digital landscape broadens to accommodate more internet-enabled devices and technologies…

Social and Information Networks · Computer Science 2015-08-18 Alex V. Mbaziira , Ehab Abozinadah , James H. Jones

Nowadays, forgery faces pose pressing security concerns over fake news, fraud, impersonation, etc. Despite the demonstrated success in intra-domain face forgery detection, existing detection methods lack generalization capability and tend…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Chenqi Kong , Haoliang Li , Shiqi Wang

Vectors of data are at the heart of machine learning and data mining. Recently, vector quantization methods have shown great promise in reducing both the time and space costs of operating on vectors. We introduce a vector quantization…

Performance · Computer Science 2017-07-03 Davis W Blalock , John V Guttag

We present a cost-effective two-step authentication system that integrates face identification and speaker verification using only a camera and microphone available on common devices. The pipeline first performs face recognition to identify…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Kuan Wei Chen , Ting Yi Lin , Wen Ren Yang , Aryan Kesarwani , Riya Singh

Social media is increasingly plagued by realistic fake images, making it hard to trust content. Previous algorithms to detect these fakes often fail in new, real-world scenarios because they are trained on specific datasets. To address the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Weihuang Liu , Xi Shen , Chi-Man Pun , Xiaodong Cun

To employ a quantum device, the performance of the quantum gates in the device needs to be evaluated first. Since the dimensionality of a quantum gate grows exponentially with the number of qubits, evaluating the performance of a quantum…

Quantum Physics · Physics 2022-02-14 Maolin Luo , Xiaoqian Zhang , Xiaoqi Zhou

Although modern face verification systems are accessible and accurate, they are not always robust to pose variance and occlusions. Moreover, accurate models require a large amount of data to train. We structure our experiments to operate on…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Kaushal Bhogale , Nishant Shankar , Adheesh Juvekar , Asutosh Padhi

We present FiFTy, a modern file type identification tool for memory forensics and data carving. In contrast to previous approaches based on hand-crafted features, we design a compact neural network architecture, which uses a trainable…

Cryptography and Security · Computer Science 2020-06-09 Govind Mittal , Pawel Korus , Nasir Memon

In the modern world, facial identification is an extremely important task in which many applications rely on high performing algorithms to detect faces efficiently. Whilst classical methods of SVM and k-NN commonly used may perform to a…

Quantum Physics · Physics 2020-08-31 Philip Easom-McCaldin , Ahmed Bouridane , Ammar Belatreche , Richard Jiang

Ransomware is a significant global threat, with easy deployment due to the prevalent ransomware-as-a-service model. Machine learning algorithms incorporating the use of opcode characteristics and Support Vector Machine have been…

Cryptography and Security · Computer Science 2018-07-30 James Baldwin , Ali Dehghantanha

Symbolic representations of time series have proven to be effective for time series classification, with many recent approaches including SAX-VSM, BOSS, WEASEL, and MrSEQL. The key idea is to transform numerical time series to symbolic…

Machine Learning · Computer Science 2022-03-16 Thach Le Nguyen , Georgiana Ifrim

Purpose. Handwriting is one of the most frequently occurring patterns in everyday life and with it come challenging applications such as handwriting recognition (HWR), writer identification, and signature verification. In contrast to…

Machine Learning · Computer Science 2024-10-08 Felix Ott , David Rügamer , Lucas Heublein , Tim Hamann , Jens Barth , Bernd Bischl , Christopher Mutschler

Retrieving the most similar vector embeddings to a given query among a massive collection of vectors has long been a key component of countless real-world applications. The recently introduced Retrieval-Augmented Generation is one of the…

Machine Learning · Computer Science 2024-02-06 Cecilia Aguerrebere , Mark Hildebrand , Ishwar Singh Bhati , Theodore Willke , Mariano Tepper

Data selection methods, such as active learning and core-set selection, are useful tools for machine learning on large datasets. However, they can be prohibitively expensive to apply in deep learning because they depend on feature…

Human detection is a popular issue and has been widely used in many applications. However, including complexities in computation, leading to the human detection system implemented hardly in real-time applications. This paper presents the…

Hardware Architecture · Computer Science 2022-05-06 Van-Cam Nguyen , Hong-Tuan-Dinh Le , Huu-Thuan Huynh

Online fraud often involves identity theft. Since most security measures are weak or can be spoofed, we investigate a more nuanced and less explored avenue: behavioral biometrics via handwriting movements. This kind of data can be used to…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Luis A. Leiva , Moises Diaz , Miguel A. Ferrer , Réjean Plamondon

We study online changepoint detection in the context of a linear regression model. We propose a class of heavily weighted statistics based on the CUSUM process of the regression residuals, which are specifically designed to ensure timely…

Methodology · Statistics 2024-02-08 Fabrizio Ghezzi , Eduardo Rossi , Lorenzo Trapani

We utilize the dynamics involved in the imaging of a fingerprint on a touch-based fingerprint reader, such as perspiration, changes in skin color (blanching), and skin distortion, to differentiate real fingers from spoof (fake) fingers.…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Tarang Chugh , Anil K. Jain

The development of quantum networks is paramount towards practical and secure communications. Quantum digital signatures (QDS) offer an information-theoretically secure solution for ensuring data integrity, authenticity, and…

Network quantization significantly reduces model inference complexity and has been widely used in real-world deployments. However, most existing quantization methods have been developed mainly on Convolutional Neural Networks (CNNs), and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Yang Lin , Tianyu Zhang , Peiqin Sun , Zheng Li , Shuchang Zhou