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CNN-based generative modelling has evolved to produce synthetic images indistinguishable from real images in the RGB pixel space. Recent works have observed that CNN-generated images share a systematic shortcoming in replicating high…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Keshigeyan Chandrasegaran , Ngoc-Trung Tran , Ngai-Man Cheung

Modeling financial time series by stochastic processes is a challenging task and a central area of research in financial mathematics. As an alternative, we introduce Quant GANs, a data-driven model which is inspired by the recent success of…

Mathematical Finance · Quantitative Finance 2020-04-07 Magnus Wiese , Robert Knobloch , Ralf Korn , Peter Kretschmer

We introduce a new encoder-decoder GAN model, FutureGAN, that predicts future frames of a video sequence conditioned on a sequence of past frames. During training, the networks solely receive the raw pixel values as an input, without…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Sandra Aigner , Marco Körner

We propose an application of sequence generative adversarial networks (SeqGAN), which are generative adversarial networks for discrete sequence generation, for creating polyphonic musical sequences. Instead of a monophonic melody generation…

Sound · Computer Science 2018-07-03 Sang-gil Lee , Uiwon Hwang , Seonwoo Min , Sungroh Yoon

High-quality synthetic data can support the development of effective predictive models for biomedical tasks, especially in rare diseases or when subject to compelling privacy constraints. These limitations, for instance, negatively impact…

Machine Learning · Computer Science 2023-01-24 Lorenzo Simone , Davide Bacciu

Sequential recommendation as an emerging topic has attracted increasing attention due to its important practical significance. Models based on deep learning and attention mechanism have achieved good performance in sequential…

Information Retrieval · Computer Science 2021-03-22 Zhe Xie , Chengxuan Liu , Yichi Zhang , Hongtao Lu , Dong Wang , Yue Ding

In this paper we present a method for algorithmic melody generation using a generative adversarial network without recurrent components. Music generation has been successfully done using recurrent neural networks, where the model learns…

Processing temporal sequences is central to a variety of applications in health care, and in particular multi-channel Electrocardiogram (ECG) is a highly prevalent diagnostic modality that relies on robust sequence modeling. While Recurrent…

Machine Learning · Statistics 2018-07-17 Deepta Rajan , Jayaraman J. Thiagarajan

Generating realistic time series data is important for many engineering and scientific applications. Existing work tackles this problem using generative adversarial networks (GANs). However, GANs are unstable during training, and they can…

Machine Learning · Computer Science 2024-05-14 Ilan Naiman , N. Benjamin Erichson , Pu Ren , Michael W. Mahoney , Omri Azencot

Traditional GANs use a deterministic generator function (typically a neural network) to transform a random noise input $z$ to a sample $\mathbf{x}$ that the discriminator seeks to distinguish. We propose a new GAN called Bayesian…

Machine Learning · Computer Science 2017-06-20 M. Ehsan Abbasnejad , Qinfeng Shi , Iman Abbasnejad , Anton van den Hengel , Anthony Dick

Computational models of vision have traditionally been developed in a bottom-up fashion, by hierarchically composing a series of straightforward operations - i.e. convolution and pooling - with the aim of emulating simple and complex cells…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Simone Azeglio , Simone Poetto , Luca Savant Aira , Marco Nurisso

Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia, and its clinical assessment requires accurate characterization of atrial electrical activity. Noninvasive electrocardiographic imaging (ECGI) combined with deep…

The ability to accurately model random fields plays a critical role in science and engineering for problems involving uncertain, spatially-varying quantities such as heterogeneous material properties and turbulent flows. Deep generative…

In recent years, applying Deep Learning (DL) techniques emerged as a common practice in the communication system, demonstrating promising results. The present paper proposes a new Convolutional Neural Network (CNN) based Variational…

Signal Processing · Electrical Eng. & Systems 2020-05-20 Raghu Vamshi Hemadri , Akshay Rayaluru , Rahul Jashvantbhai Pandya

Clustering using deep neural network models have been extensively studied in recent years. Among the most popular frameworks are the VAE and GAN frameworks, which learns latent feature representations of data through encoder / decoder…

Machine Learning · Computer Science 2021-05-14 Adam Lindhe , Carl Ringqvist , Henrik Hult

Generative adversarial networks (GANs)successfully generate high quality data by learning amapping from a latent vector to the data. Various studies assert that the latent space of a GAN is semanticallymeaningful and can be utilized for…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 Duhyeon Bang , Seoungyoon Kang , Hyunjung Shim

Conditional sequence generation aims to instruct the generation procedure by conditioning the model with additional context information, which is a self-supervised learning issue (a form of unsupervised learning with supervision information…

Artificial Intelligence · Computer Science 2020-09-21 Yi Yu , Abhishek Srivastava , Rajiv Ratn Shah

In this work, we address the task of unconditional head motion generation to animate still human faces in a low-dimensional semantic space from a single reference pose. Different from traditional audio-conditioned talking head generation…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Louis Airale , Xavier Alameda-Pineda , Stéphane Lathuilière , Dominique Vaufreydaz

Video Variational Autoencoder (VAE) enables latent video generative modeling by mapping the visual world into compact spatiotemporal latent spaces, improving training efficiency and stability. While existing video VAEs achieve commendable…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yian Zhao , Feng Wang , Qiushan Guo , Chang Liu , Xiangyang Ji , Jian Zhang , Jie Chen

Generative Adversarial Networks (GANs) have been shown to produce realistically looking synthetic images with remarkable success, yet their performance seems less impressive when the training set is highly diverse. In order to provide a…

Machine Learning · Computer Science 2018-08-31 Matan Ben-Yosef , Daphna Weinshall