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Derived from the regular perturbation treatment of the nonlinear Schrodinger equation, a machine learning-based scheme to mitigate the intra-channel optical fiber nonlinearity is proposed. Referred to as the perturbation theory-aided (PA)…

Signal Processing · Electrical Eng. & Systems 2022-04-06 Xiang Lin , Shenghang Luo , Sunish Kumar Orappanpara Soman , Octavia A. Dobre , Lutz Lampe , Deyuan Chang , Chuandong Li

Probabilistic linear discriminant analysis (PLDA) is a popular normalization approach for the i-vector model, and has delivered state-of-the-art performance in speaker recognition. A potential problem of the PLDA model, however, is that it…

Sound · Computer Science 2016-04-01 Lantian Li , Dong Wang , Chao Xing , Thomas Fang Zheng

This paper aims to improve the widely used deep speaker embedding x-vector model. We propose the following improvements: (1) a hybrid neural network structure using both time delay neural network (TDNN) and long short-term memory neural…

Computation and Language · Computer Science 2019-02-22 Yun Tang , Guohong Ding , Jing Huang , Xiaodong He , Bowen Zhou

Nearly all Statistical Parametric Speech Synthesizers today use Mel Cepstral coefficients as the vocal tract parameterization of the speech signal. Mel Cepstral coefficients were never intended to work in a parametric speech synthesis…

Computation and Language · Computer Science 2014-10-01 Prasanna Kumar Muthukumar , Alan W. Black

This study introduces an approach for modeling unsteady transonic aerodynamics within a parametric space, using Volterra series to capture aerodynamic responses and machine learning to enable interpolation. The first- and second-order…

Computational Engineering, Finance, and Science · Computer Science 2024-10-28 Gabriele Immordino , Andrea Da Ronch , Marcello Righi

Harmonic retrieval techniques are the foundation of radio channel sounding, estimation, and modeling. This paper introduces a Deep Learning approach for joint delay- and Doppler estimation from frequency and time samples of a radio channel…

Signal Processing · Electrical Eng. & Systems 2023-12-20 Steffen Schieler , Sebastian Semper , Reza Faramarzahangari , Michael Döbereiner , Christian Schneider , R. Thomä

Multiplicative noise widely exists in radar images, medical images and other important fields' images. Compared to normal noises, multiplicative noise has a generally stronger effect on the visual expression of images. Aiming at the…

Image and Video Processing · Electrical Eng. & Systems 2026-04-14 Xiao Siyao , Huang Libing , Zhang Shunsheng

The imperfections in the RF frontend of different transmitters can be used to distinguish them. This process is called transmitter identification using RF fingerprints. The nonlinearity in the power amplifier of the RF frontend is a…

Signal Processing · Electrical Eng. & Systems 2018-11-13 Samer S. Hanna , Danijela Cabric

Joint channel estimation and signal detection (JCESD) is crucial in orthogonal frequency division multiplexing (OFDM) systems, but traditional algorithms perform poorly in low signal-to-noise ratio (SNR) scenarios. Deep learning (DL)…

Signal Processing · Electrical Eng. & Systems 2024-06-24 Haocheng Ju , Haimiao Zhang , Lin Li , Xiao Li , Bin Dong

Current audio deepfake detection has achieved remarkable performance using diverse deep learning architectures such as ResNet, and has seen further improvements with the introduction of large models (LMs) like Wav2Vec. The success of large…

Sound · Computer Science 2026-03-27 Yupei Li , Shuaijie Shao , Manuel Milling , Björn Schuller

We propose a deep structure encoder using the recently introduced Volterra Neural Networks (VNNs) to seek a latent representation of multi-modal data whose features are jointly captured by a union of subspaces. The so-called…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Sally Ghanem , Siddharth Roheda , Hamid Krim

Probabilistic Linear Discriminant Analysis (PLDA) was the dominant and necessary back-end for early speaker recognition approaches, like i-vector and x-vector. However, with the development of neural networks and margin-based loss…

Sound · Computer Science 2022-04-26 Zhuo Li , Runqiu Xiao , Zihan Zhang , Zhenduo Zhao , Wenchao Wang , Pengyuan Zhang

We demonstrate the use of deep learning for fast spectral deconstruction of speckle patterns. The artificial neural network can be effectively trained using numerically constructed multispectral datasets taken from a measured spectral…

Image and Video Processing · Electrical Eng. & Systems 2019-07-16 Ulas Kürüm , P. R. Wiecha , Rebecca French , Otto L. Muskens

Virtual analog (VA) audio effects are increasingly based on neural networks and deep learning frameworks. Due to the underlying black-box methodology, a successful model will learn to approximate the data it is presented, including…

Sound · Computer Science 2023-06-05 Anders R. Bargum , Stefania Serafin , Cumhur Erkut , Julian D. Parker

Speckle suppression in synthetic aperture radar (SAR) images is a key processing step which continues to be a research topic. A wide variety of methods, using either spatially-based approaches or transform-based strategies, have been…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Alejandro Mestre-Quereda , Juan M. Lopez-Sanchez

Sound processing in the human auditory system is complex and highly non-linear, whereas hearing aids (HAs) still rely on simplified descriptions of auditory processing or hearing loss to restore hearing. Even though standard HA…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-21 Fotios Drakopoulos , Sarah Verhulst

The emergence of large-margin softmax cross-entropy losses in training deep speaker embedding neural networks has triggered a gradual shift from parametric back-ends to a simpler cosine similarity measure for speaker verification. Popular…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-12 Qiongqiong Wang , Kong Aik Lee , Tianchi Liu

Waveform-based deep learning faces a dilemma between nonparametric and parametric approaches. On one hand, convolutional neural networks (convnets) may approximate any linear time-invariant system; yet, in practice, their frequency…

Sound · Computer Science 2024-07-09 Vincent Lostanlen , Daniel Haider , Han Han , Mathieu Lagrange , Peter Balazs , Martin Ehler

This article investigates the use of deep neural networks (DNNs) for hearing-loss compensation. Hearing loss is a prevalent issue affecting millions of people worldwide, and conventional hearing aids have limitations in providing…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-16 Peter Leer , Jesper Jensen , Laurel H. Carney , Zheng-Hua Tan , Jan Østergaard , Lars Bramsløw

Deep neural networks (DNNs) experience significant performance degradation when processing noisy labels, primarily due to overfitting on mislabeled data. Current mainstream approaches attempt to mitigate this issue by passively filtering…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Ningkang Peng , Jingyang Mao , Xiaoqian Peng , Peirong Ma , Xichen Yang , Weiguang Qu , Yanhui Gu