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Since the Turing test was first proposed by Alan Turing in 1950, the primary goal of artificial intelligence has been predicated on the ability for computers to imitate human behavior. However, the majority of uses for the computer can be…

Computers and Society · Computer Science 2010-02-16 Marko A. Rodriguez , Alberto Pepe

In a one-counter automaton (OCA), one can produce a letter from some finite alphabet, increment and decrement the counter by one, or compare it with constants up to some threshold. It is well-known that universality and language inclusion…

Formal Languages and Automata Theory · Computer Science 2016-07-20 Benedikt Bollig

With the rise of artificial intelligence (A.I.) and large language models like ChatGPT, a new race for achieving artificial general intelligence (A.G.I) has started. While many speculate how and when A.I. will achieve A.G.I., there is no…

Artificial Intelligence · Computer Science 2025-12-05 Georgios Mappouras

Certificate transparency (CT) is an elegant mechanism designed to detect when a certificate authority (CA) has issued a certificate incorrectly. Many CAs now support CT and it is being actively deployed in browsers. However, a number of…

Cryptography and Security · Computer Science 2017-08-08 Saba Eskandarian , Eran Messeri , Joseph Bonneau , Dan Boneh

The purpose of this study is to explore the performance of Informed OCR or iOCR. iOCR was developed with a spell correction algorithm to fix errors introduced by conventional OCR for vote tabulation. The results found that the iOCR system…

Emerging Technologies · Computer Science 2022-08-02 Kenneth U. Oyibo , Jean D. Louis , Juan E. Gilbert

Effective caching is crucial for the performance of modern-day computing systems. A key optimization problem arising in caching -- which item to evict to make room for a new item -- cannot be optimally solved without knowing the future.…

Machine Learning · Computer Science 2021-06-29 Jakub Chłędowski , Adam Polak , Bartosz Szabucki , Konrad Zolna

Sybil attacks remain a fundamental obstacle in open online systems, where adversaries can cheaply create and sustain large numbers of fake identities. Existing defenses, including CAPTCHAs and one-time proof-of-personhood mechanisms,…

Cryptography and Security · Computer Science 2026-01-08 Homayoun Maleki , Nekane Sainz , Jon Legarda

Machine learning systems increasingly make life-changing decisions about individuals, such as loan approvals, hiring, and cheating detection, raising a pressing question: how can individuals respond to negative decisions made by these…

Machine Learning · Statistics 2026-05-18 Timo Freiesleben , Kristof Meding , Gunnar König

Adversaries continuously evolve their tactics, techniques, and procedures (TTPs) to achieve their objectives while evading detection, requiring defenders to continually update their understanding of adversary behavior. Prior research has…

Software Engineering · Computer Science 2026-04-06 Mahzabin Tamanna , Shaswata Mitra , Md Erfan , Ahmed Ryan , Sudip Mittal , Laurie Williams , Md Rayhanur Rahman

Machine Comprehension (MC) is a challenging task in Natural Language Processing field, which aims to guide the machine to comprehend a passage and answer the given question. Many existing approaches on MC task are suffering the inefficiency…

Computation and Language · Computer Science 2017-10-10 Zheqian Chen , Rongqin Yang , Bin Cao , Zhou Zhao , Deng Cai , Xiaofei He

Optical character recognition (OCR) for historical documents is a complex procedure subject to a unique set of material issues, including inconsistencies in typefaces and low quality scanning. Consequently, even the most sophisticated OCR…

Computation and Language · Computer Science 2020-04-27 Alberto Poncelas , Mohammad Aboomar , Jan Buts , James Hadley , Andy Way

Face recognition (FR) systems have demonstrated outstanding verification performance, suggesting suitability for real-world applications ranging from photo tagging in social media to automated border control (ABC). In an advanced FR system…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Fatemeh Vakhshiteh , Ahmad Nickabadi , Raghavendra Ramachandra

The development of advanced generative chat models, such as ChatGPT, has raised questions about the potential consciousness of these tools and the extent of their general artificial intelligence. ChatGPT consistent avoidance of passing the…

General Literature · Computer Science 2023-04-26 Arend Hintze

Cancelable biometrics are a group of techniques to transform the input biometric to an irreversible feature intentionally using a transformation function and usually a key in order to provide security and privacy in biometric recognition…

Machine Learning · Computer Science 2023-02-20 Mahdi Ghafourian , Julian Fierrez , Ruben Vera-Rodriguez , Aythami Morales , Ignacio Serna

With the rapid development of internet technologies, social networks, and other related areas, user authentication becomes more and more important to protect the data of users. Password authentication is one of the widely used methods to…

Cryptography and Security · Computer Science 2023-01-31 Lifeng Han

With the rise of sophisticated authentication bypass techniques, passwords are no longer considered a reliable method for securing authentication systems. In recent years, new authentication technologies have shifted from traditional…

Cryptography and Security · Computer Science 2025-08-19 Lien Tran , Boyuan Zhang , Ratchanon Pawanja , Rashid Hussain Khokhar

Deep Learning algorithms have achieved the state-of-the-art performance for Image Classification and have been used even in security-critical applications, such as biometric recognition systems and self-driving cars. However, recent works…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Gabriel Resende Machado , Eugênio Silva , Ronaldo Ribeiro Goldschmidt

Standard OCR is a well-researched topic of computer vision and can be considered solved for machine-printed text. However, when applied to unconstrained images, the recognition rates drop drastically. Therefore, the employment of object…

Computer Vision and Pattern Recognition · Computer Science 2013-04-29 Albert Kavelar , Sebastian Zambanini , Martin Kampel

Natural Language Processing (NLP) models based on Machine Learning (ML) are susceptible to adversarial attacks -- malicious algorithms that imperceptibly modify input text to force models into making incorrect predictions. However,…

Computation and Language · Computer Science 2023-05-26 Salijona Dyrmishi , Salah Ghamizi , Maxime Cordy

This paper assumes the hypothesis that human learning is perception based, and consequently, the learning process and perceptions should not be represented and investigated independently or modeled in different simulation spaces. In order…

Artificial Intelligence · Computer Science 2012-09-28 Cristina M. Noaica , Robert Badea , Iulia M. Motoc , Claudiu G. Ghica , Alin C. Rosoiu , Nicolaie Popescu-Bodorin