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Adversarial purification is a defense mechanism for safeguarding classifiers against adversarial attacks without knowing the type of attacks or training of the classifier. These techniques characterize and eliminate adversarial…

Cryptography and Security · Computer Science 2024-02-13 Raha Moraffah , Shubh Khandelwal , Amrita Bhattacharjee , Huan Liu

Targeted adversarial attacks are widely used to evaluate the robustness of neural machine translation systems. Unfortunately, this paper first identifies a critical issue in the existing settings of NMT targeted adversarial attacks, where…

Computation and Language · Computer Science 2024-07-09 Junjie Wu , Lemao Liu , Wei Bi , Dit-Yan Yeung

The spread of unwanted or malicious content through social media has become a major challenge. Traditional examples of this include social network spam, but an important new concern is the propagation of fake news through social media. A…

Multiagent Systems · Computer Science 2018-01-26 Sixie Yu , Yevgeniy Vorobeychik , Scott Alfeld

Cyberbullying is a prevalent and growing social problem due to the surge of social media technology usage. Minorities, women, and adolescents are among the common victims of cyberbullying. Despite the advancement of NLP technologies, the…

Computation and Language · Computer Science 2020-12-07 Thushari Atapattu , Mahen Herath , Georgia Zhang , Katrina Falkner

Textual adversarial samples play important roles in multiple subfields of NLP research, including security, evaluation, explainability, and data augmentation. However, most work mixes all these roles, obscuring the problem definitions and…

Computation and Language · Computer Science 2022-10-20 Yangyi Chen , Hongcheng Gao , Ganqu Cui , Fanchao Qi , Longtao Huang , Zhiyuan Liu , Maosong Sun

Deep Neural Networks are well known to be vulnerable to adversarial attacks and backdoor attacks, where minor modifications on the input are able to mislead the models to give wrong results. Although defenses against adversarial attacks…

Machine Learning · Computer Science 2022-08-01 Kaidi Jin , Tianwei Zhang , Chao Shen , Yufei Chen , Ming Fan , Chenhao Lin , Ting Liu

Machine learning has witnessed tremendous growth in its adoption and advancement in the last decade. The evolution of machine learning from traditional algorithms to modern deep learning architectures has shaped the way today's technology…

Cryptography and Security · Computer Science 2022-01-06 Kshitiz Aryal , Maanak Gupta , Mahmoud Abdelsalam

Social media platforms are plagued by harmful content such as hate speech, misinformation, and extremist rhetoric. Machine learning (ML) models are widely adopted to detect such content; however, they remain highly vulnerable to adversarial…

Machine Learning · Computer Science 2025-12-30 Yidong Chai , Yi Liu , Mohammadreza Ebrahimi , Weifeng Li , Balaji Padmanabhan

When machine learning systems fail because of adversarial manipulation, how should society expect the law to respond? Through scenarios grounded in adversarial ML literature, we explore how some aspects of computer crime, copyright, and…

Machine Learning · Computer Science 2018-12-06 Ram Shankar Siva Kumar , David R. O'Brien , Kendra Albert , Salome Vilojen

The social media platform is a convenient medium to express personal thoughts and share useful information. It is fast, concise, and has the ability to reach millions. It is an effective place to archive thoughts, share artistic content,…

Computation and Language · Computer Science 2021-06-01 Ramchandra Joshi , Rushabh Karnavat , Kaustubh Jirapure , Raviraj Joshi

The increasingly sophisticated and growing number of threat actors along with the sheer speed at which cyber attacks unfold, make timely identification of attacks imperative to an organisations' security. Consequently, persons responsible…

Cryptography and Security · Computer Science 2022-07-19 Clemens Sauerwein , Alexander Pfohl

With the recent advancements in machine learning (ML), numerous ML-based approaches have been extensively applied in software analytics tasks to streamline software development and maintenance processes. Nevertheless, studies indicate that…

Software Engineering · Computer Science 2025-07-15 MD Abdul Awal , Mrigank Rochan , Chanchal K. Roy

Deep neural networks (DNNs) have achieved remarkable success in the field of natural language processing (NLP), leading to widely recognized applications such as ChatGPT. However, the vulnerability of these models to adversarial attacks…

Artificial Intelligence · Computer Science 2025-02-25 Yangshijie Zhang

The rise of cyberbullying in social media platforms involving toxic comments has escalated the need for effective ways to monitor and moderate online interactions. Existing solutions of automated toxicity detection systems, are based on a…

Artificial Intelligence · Computer Science 2026-02-11 Michail S. Alexiou , J. Sukarno Mertoguno

With the spread of social networks and their unfortunate use for hate speech, automatic detection of the latter has become a pressing problem. In this paper, we reproduce seven state-of-the-art hate speech detection models from prior work,…

Computation and Language · Computer Science 2018-11-06 Tommi Gröndahl , Luca Pajola , Mika Juuti , Mauro Conti , N. Asokan

Hate Speech has become a major content moderation issue for online social media platforms. Given the volume and velocity of online content production, it is impossible to manually moderate hate speech related content on any platform. In…

Computation and Language · Computer Science 2021-01-28 Sudhanshu Mishra , Shivangi Prasad , Shubhanshu Mishra

Convolutional neural networks have been used to achieve a string of successes during recent years, but their lack of interpretability remains a serious issue. Adversarial examples are designed to deliberately fool neural networks into…

Machine Learning · Computer Science 2020-04-28 Jan Philip Göpfert , André Artelt , Heiko Wersing , Barbara Hammer

We now have a rich and growing set of modeling tools and algorithms for inducing linguistic structure from text that is less than fully annotated. In this paper, we discuss some of the weaknesses of our current methodology. We present a new…

Computation and Language · Computer Science 2012-07-17 Noah A. Smith

Computational paralinguistic analysis is increasingly being used in a wide range of cyber applications, including security-sensitive applications such as speaker verification, deceptive speech detection, and medical diagnostics. While…

Machine Learning · Computer Science 2019-01-14 Yuan Gong , Christian Poellabauer

The Internet and social media have altered how individuals access news in the age of instantaneous information distribution. While this development has increased access to information, it has also created a significant problem: the spread…

Artificial Intelligence · Computer Science 2023-11-17 Li He , Siyi Hu , Ailun Pei