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Estimating the performance of a machine learning system is a longstanding challenge in artificial intelligence research. Today, this challenge is especially relevant given the emergence of systems which appear to increasingly outperform…

Machine Learning · Computer Science 2021-09-17 Qiongkai Xu , Christian Walder , Chenchen Xu

This paper presents a human verification scheme in two independent stages to overcome the vulnerabilities of attacks and to enhance security. At the first stage, a hand image-based CAPTCHA (HandCAPTCHA) is tested to avert automated…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Asish Bera , Debotosh Bhattacharjee , Hubert P H Shum

The Turing test aimed to recognize the behavior of a human from that of a computer algorithm. Such challenge is more relevant than ever in today's social media context, where limited attention and technology constrain the expressive power…

Social and Information Networks · Computer Science 2017-03-07 Emilio Ferrara , Onur Varol , Clayton Davis , Filippo Menczer , Alessandro Flammini

Face recognition algorithms perform more accurately than humans in some cases, though humans and machines both show race-based accuracy differences. As algorithms continue to improve, it is important to continually assess their race bias…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Geraldine Jeckeln , Selin Yavuzcan , Kate A. Marquis , Prajay Sandipkumar Mehta , Amy N. Yates , P. Jonathon Phillips , Alice J. O'Toole

Artificial intelligence (AI) tools based on large language models have acheived human-level performance on some computer programming tasks. We report several experiments using GPT-4 to generate computer code. These experiments demonstrate…

Artificial Intelligence · Computer Science 2023-04-27 Russell A Poldrack , Thomas Lu , Gašper Beguš

Machine reading comprehension aims to teach machines to understand a text like a human and is a new challenging direction in Artificial Intelligence. This article summarizes recent advances in MRC, mainly focusing on two aspects (i.e.,…

Computation and Language · Computer Science 2019-07-04 Xin Zhang , An Yang , Sujian Li , Yizhong Wang

Researchers are increasingly subjecting artificial intelligence systems to psychological testing. But to rigorously compare their cognitive capacities with humans and other animals, we must avoid both over- and under-stating our…

Artificial Intelligence · Computer Science 2025-03-05 Konstantinos Voudouris , Lucy G. Cheke , Eric Schulz

There is much to learn from what Turing hastily dismissed as Lady Lovelace s objection. Digital computers can indeed surprise us. Just like a piece of art, algorithms can be designed in such a way as to lead us to question our understanding…

Computers and Society · Computer Science 2018-03-14 Sylvie Delacroix

Distinguishing AI-generated code from human-written code is becoming crucial for tasks such as authorship attribution, content tracking, and misuse detection. Based on this, N-gram-based watermarking schemes have emerged as prominent, which…

Cryptography and Security · Computer Science 2025-07-09 Gehao Zhang , Eugene Bagdasarian , Juan Zhai , Shiqing Ma

We discuss the adequacy of tests for intelligent systems and practical problems raised by their implementation. We propose the replacement test as the ability of a system to replace successfully another system performing a task in a given…

Artificial Intelligence · Computer Science 2023-08-15 Joseph Sifakis

Current Machine Translation (MT) systems achieve very good results on a growing variety of language pairs and datasets. However, they are known to produce fluent translation outputs that can contain important meaning errors, thus…

Computation and Language · Computer Science 2021-09-23 Diptesh Kanojia , Marina Fomicheva , Tharindu Ranasinghe , Frédéric Blain , Constantin Orăsan , Lucia Specia

The detection of computer-generated text is an area of rapidly increasing significance as nascent generative models allow for efficient creation of compelling human-like text, which may be abused for the purposes of spam, disinformation,…

Computation and Language · Computer Science 2022-10-05 Evan Crothers , Nathalie Japkowicz , Herna Viktor , Paula Branco

Timed automata are a common formalism for the verification of concurrent systems subject to timing constraints. They extend finite-state automata with clocks, that constrain the system behavior in locations, and to take transitions. While…

Cryptography and Security · Computer Science 2022-06-08 Johan Arcile , Étienne André

Over the last few years, convolutional neural networks (CNNs) have proved to reach super-human performance in visual recognition tasks. However, CNNs can easily be fooled by adversarial examples, i.e., maliciously-crafted images that force…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Federico Nesti , Alessandro Biondi , Giorgio Buttazzo

The Turing test may or may not be a valid test of machine intelligence. But in an age of generative AI, the test describes the positions we humans occupy. Judging whether or not something is human or machine produced is an everyday…

Computers and Society · Computer Science 2026-01-21 Samuel Gerald Collins

Hoping to stimulate new research in individual animal identification from images, we propose to formulate the problem as the human-machine Continual Curation of images and animal identities. This is an open world recognition problem, where…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Charles V. Stewart , Jason R. Parham , Jason Holmberg , Tanya Y. Berger-Wolf

Password users frequently employ passwords that are too simple, or they just reuse passwords for multiple websites. A common complaint is that utilizing secure passwords is too difficult. One possible solution to this problem is to use a…

Cryptography and Security · Computer Science 2019-06-04 Elan Rosenfeld , Santosh Vempala , Manuel Blum

Even though passwords are the most convenient means of authentication, they bring along themselves the threat of dictionary attacks. Dictionary attacks may be of two kinds: online and offline. While offline dictionary attacks are possible…

Cryptography and Security · Computer Science 2011-11-17 Vipul Goyal , Virendra Kumar , Mayank Singh , Ajith Abraham , Sugata Sanyal

Given the ubiquity of handwritten documents in human transactions, Optical Character Recognition (OCR) of documents have invaluable practical worth. Optical character recognition is a science that enables to translate various types of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Jamshed Memon , Maira Sami , Rizwan Ahmed Khan

The following work presents a new algorithm for character recognition from obfuscated images. The presented method is an example of a potential threat to current postal services. This paper both analyzes the efficiency of the given…

Machine Learning · Computer Science 2020-12-23 Wei Wang , Emily Sallenback , Zeyu Ning , Hugues Nelson Iradukunda , Wenxi Lu , Qingquan Zhang , Ting Zhu