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Audio captioning aims at generating natural language descriptions for audio clips automatically. Existing audio captioning models have shown promising improvement in recent years. However, these models are mostly trained via maximum…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-30 Xinhao Mei , Xubo Liu , Jianyuan Sun , Mark D. Plumbley , Wenwu Wang

This work addresses the scarcity of annotated hyperspectral data required to train deep neural networks. Especially, we investigate generative adversarial networks and their application to the synthesis of consistent labeled spectra. By…

Neural and Evolutionary Computing · Computer Science 2018-06-08 Nicolas Audebert , Bertrand Le Saux , Sébastien Lefèvre

Adversarial examples in machine learning are typically generated using gradients, obtained either directly through access to the model or approximated via queries to it. In this paper, we propose a much simpler approach to craft adversarial…

Machine Learning · Computer Science 2026-05-05 Alexander Warnecke , Konrad Rieck

With the advent of generative adversarial networks, synthesizing images from textual descriptions has recently become an active research area. It is a flexible and intuitive way for conditional image generation with significant progress in…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Stanislav Frolov , Tobias Hinz , Federico Raue , Jörn Hees , Andreas Dengel

Automatic synthesis of realistic images from text would be interesting and useful, but current AI systems are still far from this goal. However, in recent years generic and powerful recurrent neural network architectures have been developed…

Neural and Evolutionary Computing · Computer Science 2016-06-07 Scott Reed , Zeynep Akata , Xinchen Yan , Lajanugen Logeswaran , Bernt Schiele , Honglak Lee

Auto-regressive text generation models usually focus on local fluency, and may cause inconsistent semantic meaning in long text generation. Further, automatically generating words with similar semantics is challenging, and hand-crafted…

Computation and Language · Computer Science 2020-05-05 Ruiyi Zhang , Changyou Chen , Zhe Gan , Wenlin Wang , Dinghan Shen , Guoyin Wang , Zheng Wen , Lawrence Carin

Although Deep Neural Networks(DNNs) have achieved successful applications in many fields, they are vulnerable to adversarial examples.Adversarial training is one of the most effective methods to improve the robustness of DNNs, and it is…

Machine Learning · Computer Science 2020-03-26 Ya-guan Qian , Xi-Ming Zhang , Wassim Swaileh , Li Wei , Bin Wang , Jian-Hai Chen , Wu-Jie Zhou , Jing-Sheng Lei

In predictive process monitoring, predictive models are vulnerable to adversarial attacks, where input perturbations can lead to incorrect predictions. Unlike in computer vision, where these perturbations are designed to be imperceptible to…

Machine Learning · Computer Science 2024-11-22 Alexander Stevens , Jari Peeperkorn , Johannes De Smedt , Jochen De Weerdt

Generative Adversarial Networks (GANs) have known a tremendous success for many continuous generation tasks, especially in the field of image generation. However, for discrete outputs such as language, optimizing GANs remains an open…

Machine Learning · Computer Science 2022-01-31 Sylvain Lamprier , Thomas Scialom , Antoine Chaffin , Vincent Claveau , Ewa Kijak , Jacopo Staiano , Benjamin Piwowarski

Due to the inherent robustness of segmentation models, traditional norm-bounded attack methods show limited effect on such type of models. In this paper, we focus on generating unrestricted adversarial examples for semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Guangyu Shen , Chengzhi Mao , Junfeng Yang , Baishakhi Ray

In recent years, Generative Adversarial Networks (GANs) have become a hot topic among researchers and engineers that work with deep learning. It has been a ground-breaking technique which can generate new pieces of content of data in a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Parthak Mehta , Sarthak Mishra , Nikhil Chouhan , Neel Pethani , Ishani Saha

Generative Adversarial Networks (GANs) are powerful models able to synthesize data samples closely resembling the distribution of real data, yet the diversity of those generated samples is limited due to the so-called mode collapse…

Computer Vision and Pattern Recognition · Computer Science 2023-06-26 Jan Dubiński , Kamil Deja , Sandro Wenzel , Przemysław Rokita , Tomasz Trzciński

Generative adversarial networks are the state of the art approach towards learned synthetic image generation. Although early successes were mostly unsupervised, bit by bit, this trend has been superseded by approaches based on labelled…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Ricard Durall , Kalun Ho , Franz-Josef Pfreundt , Janis Keuper

Training regimes based on Maximum Likelihood Estimation (MLE) suffer from known limitations, often leading to poorly generated text sequences. At the root of these limitations is the mismatch between training and inference, i.e. the…

Computation and Language · Computer Science 2020-06-09 Thomas Scialom , Paul-Alexis Dray , Sylvain Lamprier , Benjamin Piwowarski , Jacopo Staiano

Adversarial samples for images have been extensively studied in the literature. Among many of the attacking methods, gradient-based methods are both effective and easy to compute. In this work, we propose a framework to adapt the gradient…

Computation and Language · Computer Science 2018-01-26 Zhitao Gong , Wenlu Wang , Bo Li , Dawn Song , Wei-Shinn Ku

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

Adversarial attacks against Deep Neural Networks have been widely studied. One significant feature that makes such attacks particularly powerful is transferability, where the adversarial examples generated from one model can be effective…

Cryptography and Security · Computer Science 2020-09-29 Renzhi Wang , Tianwei Zhang , Xiaofei Xie , Lei Ma , Cong Tian , Felix Juefei-Xu , Yang Liu

We describe an end-to-end speech synthesis system that uses generative adversarial training. We train our Vocoder for raw phoneme-to-audio conversion, using explicit phonetic, pitch and duration modeling. We experiment with several…

Machine Learning · Computer Science 2023-10-17 Tiberiu Boros , Stefan Daniel Dumitrescu , Ionut Mironica , Radu Chivereanu

Deep learning has undoubtedly offered tremendous improvements in the performance of state-of-the-art speech emotion recognition (SER) systems. However, recent research on adversarial examples poses enormous challenges on the robustness of…

Machine Learning · Computer Science 2019-01-01 Siddique Latif , Rajib Rana , Junaid Qadir

Adversarial attacks on machine learning algorithms have been a key deterrent to the adoption of AI in many real-world use cases. They significantly undermine the ability of high-performance neural networks by forcing misclassifications.…

Machine Learning · Computer Science 2024-04-04 Nandish Chattopadhyay , Atreya Goswami , Anupam Chattopadhyay