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Authorship attribution aims to identify the author of a text based on the stylometric analysis. Authorship obfuscation, on the other hand, aims to protect against authorship attribution by modifying a text's style. In this paper, we…

Computation and Language · Computer Science 2020-05-05 Asad Mahmood , Zubair Shafiq , Padmini Srinivasan

Authenticated data structures provide cryptographic proofs that their answers are as accurate as the author intended, even if the data structure is being controlled by a remote untrusted host. We present efficient techniques for…

Cryptography and Security · Computer Science 2009-08-31 Michael T. Goodrich , Roberto Tamassia , Nikos Triandopoulos

This paper describes the method to recognize offline handwritten characters. A robust algorithm for handwriting segmentation is described here with the help of which individual characters can be segmented from a selected word from a…

Computer Vision and Pattern Recognition · Computer Science 2015-07-21 Jayati Ghosh Dastidar , Surabhi Sarkar , Rick Punyadyuti Sinha , Kasturi Basu

Plagiarism of material from the Internet is a widespread and growing problem. Several methods used to detect the plagiarism and similarity between the source document and suspected documents such as fingerprint based on character or n-gram.…

Other Computer Science · Computer Science 2010-04-27 Ahmed Hamza Osman , Naomie Salim , Mohammed Salem Binwahlan

Due to the progression of information technology in recent years, document images have been widely disseminated on social networks. With the help of powerful image editing tools, document images are easily forged without leaving visible…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Xin Liao , Siliang Chen , Jiaxin Chen , Tianyi Wang , Xiehua Li

We propose a novel method for large-scale image stitching that is robust against repetitive patterns and featureless regions in the imagery. In such cases, state-of-the-art image stitching methods easily produce image alignment artifacts,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Matti Pellikka , Valtteri Lahtinen

In recent years, DeepFake is becoming a common threat to our society, due to the remarkable progress of generative adversarial networks (GAN) in image synthesis. Unfortunately, existing studies that propose various approaches, in fighting…

Cryptography and Security · Computer Science 2021-09-28 Run Wang , Felix Juefei-Xu , Meng Luo , Yang Liu , Lina Wang

Handwriting remains an essential skill, particularly in education. Therefore, providing visual feedback on handwritten documents is an important but understudied area. We outline the many challenges when going from an image of handwritten…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Said Yasin , Torsten Zesch

The study of ancient documents provides a glimpse into our past. However, the low image quality and intricate details commonly found in these documents present significant challenges for accurate object detection. The objective of this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Zahra Ziran , Francesco Leotta , Massimo Mecella

The problem of representing text documents within an Information Retrieval system is formulated as an analogy to the problem of representing the quantum states of a physical system. Lexical measurements of text are proposed as a way of…

Information Retrieval · Computer Science 2008-02-19 Álvaro Francisco Huertas-Rosero , Leif Azzopardi , C. J. van Rijsbergen

In recent years, methods for producing highly realistic synthetic images have significantly advanced, allowing the creation of high-quality images from text prompts that describe the desired content. Even more impressively, Stable Diffusion…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Sara Mandelli , Paolo Bestagini , Stefano Tubaro

Detection and recognition of text from scans and other images, commonly denoted as Optical Character Recognition (OCR), is a widely used form of automated document processing with a number of methods available. Yet OCR systems still do not…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Krzysztof Olejniczak , Milan Šulc

The security of bio-metric information - finger print, retina mapping, DNA mapping and some other chemical and biological modified genes related information - transfer through low bandwidth and unreliable or covert channel is challenging…

Cryptography and Security · Computer Science 2011-03-18 Raju Singh , A. K. Vatsa

Protection of physical objects against counterfeiting is an important task for the modern economies. In recent years, the high-quality counterfeits appear to be closer to originals thanks to the rapid advancement of digital technologies. To…

Cryptography and Security · Computer Science 2021-10-06 Olga Taran , Joakim Tutt , Taras Holotyak , Roman Chaban , Slavi Bonev , Slava Voloshynovskiy

Preventing data exfiltration from computer systems typically depends on perimeter defences, but these are becoming increasingly fragile. Instead we suggest an approach in which each at-risk document is supplemented by many fake versions of…

Cryptography and Security · Computer Science 2018-09-14 David Skillicorn , Xiao Li , Karen Chen

We quickly approach a "pervasive future" where pervasive computing is the norm. In this scenario, humans are surrounded by a multitude of heterogeneous devices that assist them in almost every aspect of their daily routines. The realization…

Cryptography and Security · Computer Science 2019-07-12 Artur Souza , Antônio A. F. Loureiro , Leonardo B. Oliveira

Although secular, handwritten signature is one of the most reliable biometric methods used by most countries. In the last ten years, the application of technology for verification of handwritten signatures has evolved strongly, including…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Celso A. M. Lopes Junior , Matheus Henrique M. da Silva , Byron Leite Dantas Bezerra , Bruno Jose Torres Fernandes , Donato Impedovo

Text-guided image-to-image diffusion models excel in translating images based on textual prompts, allowing for precise and creative visual modifications. However, such a powerful technique can be misused for spreading misinformation,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Wenhao Wang , Yifan Sun , Zongxin Yang , Zhentao Tan , Zhengdong Hu , Yi Yang

Steganography derives from the Greek word steganos, meaning covered or secret, and graphy (writing or drawing). Steganography is a technology where modern data compression, information theory, spread spectrum, and cryptography technologies…

Multimedia · Computer Science 2014-01-23 C. P. Sumathi , T. Santanam , G. Umamaheswari

The language that we produce reflects our personality, and various personal and demographic characteristics can be detected in natural language texts. We focus on one particular personal trait of the author, gender, and study how it is…

Computation and Language · Computer Science 2017-01-13 Ella Rabinovich , Shachar Mirkin , Raj Nath Patel , Lucia Specia , Shuly Wintner