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We present Aura-CAPTCHA, a multi-modal verification system that integrates Generative Adversarial Networks (GANs), Reinforcement Learning (RL), and behavioral analysis to create adaptive challenges resistant to classical deep-learning…

Machine Learning · Computer Science 2026-05-06 Joydeep Chandra , Prabal Manhas , Ramanjot Kaur , Rashi Sahay

Generative Adversarial Networks (GANs) are an arrange of two neural networks -- the generator and the discriminator -- that are jointly trained to generate artificial data, such as images, from random inputs. The quality of these generated…

Computer Vision and Pattern Recognition · Computer Science 2021-01-05 Manel Mateos , Alejandro González , Xavier Sevillano

Adversarial attack is aimed at fooling the target classifier with imperceptible perturbation. Adversarial examples, which are carefully crafted with a malicious purpose, can lead to erroneous predictions, resulting in catastrophic…

Machine Learning · Computer Science 2021-11-19 Mingu Kang , Trung Quang Tran , Seungju Cho , Daeyoung Kim

Most existing text-to-image generation methods adopt a multi-stage modular architecture which has three significant problems: 1) Training multiple networks increases the run time and affects the convergence and stability of the generative…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhenxing Zhang , Lambert Schomaker

Generative adversarial networks (GANs) are one of the most robust and versatile techniques in the field of generative artificial intelligence. In this work, we report on an application of GANs in the domain of synthetic spectral data…

Generative Adversarial Networks (GANs) have achieved excellent audio synthesis quality in the last years. However, making them operable with semantically meaningful controls remains an open challenge. An obvious approach is to control the…

Sound · Computer Science 2021-08-04 Javier Nistal , Stefan Lattner , Gaël Richard

Generative Adversarial Networks (GANs) is a novel class of deep generative models which has recently gained significant attention. GANs learns complex and high-dimensional distributions implicitly over images, audio, and data. However,…

Machine Learning · Computer Science 2023-04-06 Divya Saxena , Jiannong Cao

Generative Artificial Intelligence (GenAI) has emerged as a powerful technology capable of autonomously producing highly realistic content in various domains, such as text, images, audio, and videos. With its potential for positive…

Cryptography and Security · Computer Science 2023-06-23 Subash Neupane , Ivan A. Fernandez , Sudip Mittal , Shahram Rahimi

Neural Image Classifiers are effective but inherently hard to interpret and susceptible to adversarial attacks. Solutions to both problems exist, among others, in the form of counterfactual examples generation to enhance explainability or…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Rafael Bischof , Florian Scheidegger , Michael A. Kraus , A. Cristiano I. Malossi

Our voice encodes a uniquely identifiable pattern which can be used to infer private attributes, such as gender or identity, that an individual might wish not to reveal when using a speech recognition service. To prevent attribute inference…

Sound · Computer Science 2022-07-05 Dimitrios Stoidis , Andrea Cavallaro

Despite the substantial progress in recent years, the image captioning techniques are still far from being perfect.Sentences produced by existing methods, e.g. those based on RNNs, are often overly rigid and lacking in variability. This…

Computer Vision and Pattern Recognition · Computer Science 2017-08-14 Bo Dai , Sanja Fidler , Raquel Urtasun , Dahua Lin

Counter-speech generation is at the core of many expert activities, such as fact-checking and hate speech, to counter harmful content. Yet, existing work treats counter-speech generation as pure text generation task, mainly based on Large…

Computation and Language · Computer Science 2025-10-15 Greta Damo , Elena Cabrio , Serena Villata

Generative Adversarial Networks (GANs) have become a ubiquitous technology for data generation, with their prowess in image generation being well-established. However, their application in generating tabular data has been less than ideal.…

Machine Learning · Computer Science 2023-12-21 Zijian Li , Zhihui Wang

As a sub-domain of text-to-image synthesis, text-to-face generation has huge potentials in public safety domain. With lack of dataset, there are almost no related research focusing on text-to-face synthesis. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Xiang Chen , Lingbo Qing , Xiaohai He , Xiaodong Luo , Yining Xu

One of the major breakthroughs in deep learning over the past five years has been the Generative Adversarial Network (GAN), a neural network-based generative model which aims to mimic some underlying distribution given a dataset of samples.…

Machine Learning · Computer Science 2020-06-23 Yeojoon Youn , Neil Thistlethwaite , Sang Keun Choe , Jacob Abernethy

Deep Neural Networks (DNNs) have become prevalent in wireless communication systems due to their promising performance. However, similar to other DNN-based applications, they are vulnerable to adversarial examples. In this work, we propose…

Cryptography and Security · Computer Science 2021-02-02 Alireza Bahramali , Milad Nasr , Amir Houmansadr , Dennis Goeckel , Don Towsley

Face aging, which renders aging faces for an input face, has attracted extensive attention in the multimedia research. Recently, several conditional Generative Adversarial Nets (GANs) based methods have achieved great success. They can…

Computer Vision and Pattern Recognition · Computer Science 2018-02-02 Si Liu , Yao Sun , Defa Zhu , Renda Bao , Wei Wang , Xiangbo Shu , Shuicheng Yan

With the advent of Deep Learning (DL) techniques, especially Generative Adversarial Networks (GANs), data augmentation and generation are quickly evolving domains that have raised much interest recently. However, the DL techniques are data…

Computer Vision and Pattern Recognition · Computer Science 2018-05-30 Umair Javaid , John A. Lee

We propose a unified Generative Adversarial Network (GAN) for controllable image-to-image translation, i.e., transferring an image from a source to a target domain guided by controllable structures. In addition to conditioning on a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Hao Tang , Hong Liu , Nicu Sebe

This paper proposes a new defense approach for counteracting state-of-the-art white and black-box adversarial attack algorithms. Our approach fits into the implicit reactive defense algorithm category since it does not directly manipulate…

Sound · Computer Science 2021-08-24 Mohammad Esmaeilpour , Patrick Cardinal , Alessandro Lameiras Koerich