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Triangular, overlapping Mel-scaled filters ("f-banks") are the current standard input for acoustic models that exploit their input's time-frequency geometry, because they provide a psycho-acoustically motivated time-frequency geometry for a…

机器学习 · 计算机科学 2019-01-03 Sean Robertson , Gerald Penn , Yingxue Wang

Feature learning, or the ability of deep neural networks to automatically learn relevant features from raw data, underlies their exceptional capability to solve complex tasks. However, feature learning seems to be realized in different ways…

机器学习 · 计算机科学 2023-07-25 R. Aiudi , R. Pacelli , A. Vezzani , R. Burioni , P. Rotondo

Early identification of abnormal physiological patterns is essential for the timely detection of cardiac disease. This work introduces a hybrid quantum-classical convolutional neural network (QCNN) designed to classify S3 and murmur…

机器学习 · 计算机科学 2025-11-05 Yasaman Torabi , Shahram Shirani , James P. Reilly

Fourier-based wavefront sensors, such as the Pyramid Wavefront Sensor (PWFS), are the current preference for high contrast imaging due to their high sensitivity. However, these wavefront sensors have intrinsic nonlinearities that constrain…

天体物理仪器与方法 · 物理学 2020-05-22 Rico Landman , Sebastiaan Haffert

Histology images are inherently symmetric under rotation, where each orientation is equally as likely to appear. However, this rotational symmetry is not widely utilised as prior knowledge in modern Convolutional Neural Networks (CNNs),…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Simon Graham , David Epstein , Nasir Rajpoot

In sound event detection (SED), convolutional neural networks (CNNs) are widely employed to extract time-frequency (TF) patterns from spectrograms. However, the ability of CNNs to recognize different sound events is limited by their…

声音 · 计算机科学 2024-10-30 Tao Song , WenWen Zhang

Early detection and accurate diagnosis are essential to improving patient outcomes. The use of convolutional neural networks (CNNs) for tumor detection has shown promise, but existing models often suffer from overparameterization, which…

图像与视频处理 · 电气工程与系统科学 2025-05-09 Muhammad Irfan , Anum Nawaz , Riku Klen , Abdulhamit Subasi , Tomi Westerlund , Wei Chen

Electrocardiography (ECG) signal is a highly applied measurement for individual heart condition, and much effort have been endeavored towards automatic heart arrhythmia diagnosis based on machine learning. However, traditional machine…

信号处理 · 电气工程与系统科学 2021-11-01 Ziyu Liu , Xiang Zhang

Peripheral Arterial Disease (PAD) is a common form of arterial occlusive disease that is challenging to evaluate at the point-of-care. Hand-held dopplers are the most ubiquitous device used to evaluate circulation and allows providers to…

声音 · 计算机科学 2021-06-17 Adrit Rao , Kevin Battenfield , Oliver Aalami

Deep neural networks with convolutional layers usually process the entire spectrogram of an audio signal with the same time-frequency resolutions, number of filters, and dimensionality reduction scale. According to the constant-Q transform,…

声音 · 计算机科学 2019-10-22 Emad M. Grais , Fei Zhao , Mark D. Plumbley

Convolutional neural networks (CNN) have improved speech recognition performance greatly by exploiting localized time-frequency patterns. But these patterns are assumed to appear in symmetric and rigid kernels by the conventional CNN…

音频与语音处理 · 电气工程与系统科学 2025-06-19 Jiamin Xie , John H. L. Hansen

There is increasing interest in the use of the LEArnable Front-end (LEAF) in a variety of speech processing systems. However, there is a dearth of analyses of what is actually learnt and the relative importance of training the different…

音频与语音处理 · 电气工程与系统科学 2024-04-11 Hanyu Meng , Vidhyasaharan Sethu , Eliathamby Ambikairajah

Full-waveform inversion problems are usually formulated as optimization problems, where the forward-wave propagation operator $f$ maps the subsurface velocity structures to seismic signals. The existing computational methods for solving…

信号处理 · 电气工程与系统科学 2020-01-07 Yue Wu , Youzuo Lin

While much of modern speech and audio processing relies on deep neural networks trained using fixed audio representations, recent studies suggest great potential in acoustic frontends learnt jointly with a backend. In this study, we focus…

音频与语音处理 · 电气工程与系统科学 2023-02-21 Mark Anderson , Tomi Kinnunen , Naomi Harte

The Convolutional Neural Networks (CNNs), in domains like computer vision, mostly reduced the need for handcrafted features due to its ability to learn the problem-specific features from the raw input data. However, the selection of…

计算机视觉与模式识别 · 计算机科学 2019-11-20 S. H. Shabbeer Basha , Shiv Ram Dubey , Viswanath Pulabaigari , Snehasis Mukherjee

A novel and efficient end-to-end learning model for automatic modulation classification is proposed for wireless spectrum monitoring applications, which automatically learns from the time domain in-phase and quadrature data without…

信号处理 · 电气工程与系统科学 2021-01-21 Kaisheng Liao , Yaodong Zhao , Jie Gu , Yaping Zhang , Yi Zhong

This study proposes a deep learning model that effectively suppresses the false alarms in the intensive care units (ICUs) without ignoring the true alarms using single- and multimodal biosignals. Most of the current work in the literature…

定量方法 · 定量生物学 2020-07-01 Sajad Mousavi , Atiyeh Fotoohinasab , Fatemeh Afghah

Despite the significant potential of Foundation Models (FMs) in medical imaging, their application to prognosis prediction remains challenging due to data scarcity, class imbalance, and task complexity, which limit their clinical adoption.…

计算机视觉与模式识别 · 计算机科学 2026-01-16 Filippo Ruffini , Elena Mulero Ayllon , Linlin Shen , Paolo Soda , Valerio Guarrasi

Atrial Fibrillation (AF) is a heart's arrhythmia which, despite being often asymptomatic, represents an important risk factor for stroke, therefore being able to predict AF at the electrocardiogram exam, would be of great impact on actively…

信号处理 · 电气工程与系统科学 2022-02-14 A. Scagnetto , G. Barbati , I. Gandin , C. Cappelletto , G. Baj , A. Cazzaniga , F. Cuturello , A. Ansuini , L. Bortolussi , A. Di Lenarda

Filters in a Convolutional Neural Network (CNN) contain model parameters learned from enormous amounts of data. In this paper, we suggest to decompose convolutional filters in CNN as a truncated expansion with pre-fixed bases, namely the…

机器学习 · 统计学 2018-07-31 Qiang Qiu , Xiuyuan Cheng , Robert Calderbank , Guillermo Sapiro