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Currently, many face forgery detection methods aggregate spatial and frequency features to enhance the generalization ability and gain promising performance under the cross-dataset scenario. However, these methods only leverage one level…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Jie Liu , Jingjing Wang , Peng Zhang , Chunmao Wang , Di Xie , Shiliang Pu

Deep learning has become a breathtaking technology in the last years, overcoming traditional handcrafted approaches and even humans for many different tasks. However, in some tasks, such as the verification of handwritten signatures, the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Ruben Tolosana , Ruben Vera-Rodriguez , Julian Fierrez , Javier Ortega-Garcia

This work presents the first full implementation of Wave, a postquantum code-based signature scheme. We define Wavelet, a concrete Wave scheme at the 128-bit classical security level (or NIST postquantum security Level 1) equipped with a…

Cryptography and Security · Computer Science 2021-10-27 Gustavo Banegas , Thomas Debris-Alazard , Milena Nedeljković , Benjamin Smith

Online information systems currently heavily rely on the username and password traditional method for protecting information and controlling access. With the advancement in biometric technology and popularity of fields like AI and Machine…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Ben Wycliff Mugalu , Rodrick Calvin Wamala , Jonathan Serugunda , Andrew Katumba

The pivotal role of datasets in signature verification systems motivates researchers to collect signature samples. Distinct characteristics of Persian signature demands for richer and culture-dependent offline signature datasets. This paper…

Computer Vision and Pattern Recognition · Computer Science 2016-08-15 Amir Soleimani , Kazim Fouladi , Babak N. Araabi

Although online handwriting verification has made great progress recently, the verification performances are still far behind the real usage owing to the small scale of the datasets as well as the limited biometric mediums. Therefore, this…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Peirong Zhang , Jiajia Jiang , Yuliang Liu , Lianwen Jin

Speculative Decoding (SD) is a recently proposed technique for faster inference using Large Language Models (LLMs). SD operates by using a smaller draft LLM for autoregressively generating a sequence of tokens and a larger target LLM for…

Machine Learning · Computer Science 2025-07-09 Meiyu Zhong , Noel Teku , Ravi Tandon

Offline Signature Verification (OSV) is a fundamental biometric task across various forensic, commercial and legal applications. The underlying task at hand is to carefully model fine-grained features of the signatures to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Soumitri Chattopadhyay , Siladittya Manna , Saumik Bhattacharya , Umapada Pal

In this paper, we present a methodology for off-line handwritten character recognition. The proposed methodology relies on a new feature extraction technique based on structural characteristics, histograms and profiles. As novelty, we…

Computer Vision and Pattern Recognition · Computer Science 2018-02-15 José Manuel Casas , Nick Inassaridze , Manuel Ladra , Susana Ladra

The rapid spread of misinformation, particularly through online platforms, underscores the urgent need for reliable detection systems. This study explores the utilization of machine learning and natural language processing, specifically…

Computation and Language · Computer Science 2026-02-02 Ahmed Akib Jawad Karim , Kazi Hafiz Md Asad , Aznur Azam

In recent years, the rapid advancement of deepfake technology has revolutionized content creation, lowering forgery costs while elevating quality. However, this progress brings forth pressing concerns such as infringements on individual…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Zhikan Wang , Zhongyao Cheng , Jiajie Xiong , Xun Xu , Tianrui Li , Bharadwaj Veeravalli , Xulei Yang

With the increasing number of financial services available online, the rate of financial fraud has also been increasing. The traffic and transaction rates on the internet have increased considerably, leading to a need for fast…

Computational Engineering, Finance, and Science · Computer Science 2024-11-08 Prashank Kadam

Research on offline signature verification has explored a large variety of methods on multiple signature datasets, which are collected under controlled conditions. However, these datasets may not fully reflect the characteristics of the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Deniz Engin , Alperen Kantarcı , Seçil Arslan , Hazım Kemal Ekenel

Online signature verification plays a pivotal role in security infrastructures. However, conventional online signature verification models pose significant risks to data privacy, especially during training processes. To mitigate these…

Cryptography and Security · Computer Science 2024-06-12 Lingfeng Zhang , Yuheng Guo , Yepeng Ding , Hiroyuki Sato

Symbolic Execution is a formal method that can be used to verify the behavior of computer programs and detect software vulnerabilities. Compared to other testing methods such as fuzzing, Symbolic Execution has the advantage of providing…

Cryptography and Security · Computer Science 2025-09-29 Christopher Scherb , Luc Bryan Heitz , Hermann Grieder , Olivier Mattmann

Fraud detection is an important topic that applies to various enterprises such as banking and financial sectors, insurance, government agencies, law enforcement, and more. Fraud attempts have been risen remarkably in current years, shaping…

Machine Learning · Computer Science 2020-06-03 Mohamad Khedmati , Masoud Erfani , Mohammad GhasemiGol

Copy-move image forgery aims to duplicate certain objects or to hide specific contents with copy-move operations, which can be achieved by a sequence of manual manipulations as well as up-to-date deep generative network-based swapping. Its…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Liangwei Jiang , Jinluo Xie , Yecheng Huang , Hua Zhang , Hongyu Yang , Di Huang

Offline signature verification is one of the most challenging tasks in biometrics and document forensics. Unlike other verification problems, it needs to model minute but critical details between genuine and forged signatures, because a…

Computer Vision and Pattern Recognition · Computer Science 2017-10-03 Sounak Dey , Anjan Dutta , J. Ignacio Toledo , Suman K. Ghosh , Josep Llados , Umapada Pal

The persistent growth in phishing and the rising volume of phishing websites has led to individuals and organizations worldwide becoming increasingly exposed to various cyber-attacks. Consequently, more effective phishing detection is…

Cryptography and Security · Computer Science 2020-04-09 Suleiman Y. Yerima , Mohammed K. Alzaylaee

Signature-based Intrusion Detection System (SIDS) provides a promising solution to the problem of web application security. However, the performance of the system highly relies on the quality of the signatures designed to detect attacks. A…

Cryptography and Security · Computer Science 2018-05-29 Nancy Agarwal , Syed Zeeshan Hussain