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Text as signal. A tutorial with case studies focusing on social media (Twitter)
Related publications (82)
Exploring the effectiveness of using internal CNC system signals for chatter detection in milling process
Chatter is a harmful self-excited vibration that commonly occurs during milling processes. Data -driven chatter detection and prediction is critical to achieve high surface quality and process efficiency. Most existing chatter detection approaches are base ...
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD2023A multichannel versatile brain activity classification and closed loop neuromodulation system, device and method using a highly multiplexed mixed-signal front-end
Mahsa Shoaran, Uisub Shin, Bingzhao Zhu
A closed-loop neuromodulation system, including an electrode array that is implantable to a brain of a subject, analog front-end device (AFD) for selectively selecting and reading a plurality of channels from electrode array, a finite impulse response (FIR ...
2023Filter-Informed Spectral Graph Wavelet Networks for Multiscale Feature Extraction and Intelligent Fault Diagnosis
Intelligent fault diagnosis has been increasingly improved with the evolution of deep learning (DL) approaches. Recently, the emerging graph neural networks (GNNs) have also been introduced in the field of fault diagnosis with the goal to make better use o ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2023Removing systematics-induced 21-cm foreground residuals by cross-correlating filtered data
Observations of the redshifted 21-cm signal emitted by neutral hydrogen represent a promising probe of large-scale structure in the universe. However, the cosmological 21-cm signal is challenging to observe due to astrophysical foregrounds which are severa ...
AMER PHYSICAL SOC2022Electrical Signal Modeling in Cochlear Implants. Study of Temperature and Humidity Effects
The present paper discusses the climatic effects of humidity and temperature on cochlear implant functioning and the quality of the electrical sound signal. MATLAB Simulink simulations were prepared, offering insights into signal behavior under such climat ...
MDPI2021Fourier Sampling in Signal Processing and Numerical Linear Algebra
This thesis focuses on developing efficient algorithmic tools for processing large datasets. In many modern data analysis tasks, the sheer volume of available datasets far outstrips our abilities to process them. This scenario commonly arises in tasks incl ...
EPFL2020Fourier movement primitives: an approach for learning rhythmic robot skills from demonstrations
Sylvain Calinon, Thibaut Antoine Kulak
Whether in factory or household scenarios, rhythmic movements play a crucial role in many daily-life tasks. In this paper we propose a Fourier movement primitive (FMP) representation to learn such type of skills from human demonstrations. Our approach take ...
2020Benchmarking of single imaging datasets
Aleksandra Radenovic, Adrien Charles-François Raymond Descloux
A method of estimating a value (311-313) indicative of a signal component of an input imaging dataset (190) includes determining a normalized Fourier-domain representation of the input imaging dataset (190); and for each one of multiple low-pass filters (3 ...
2020Fourier could be a data scientist: From graph Fourier transform to signal processing on graphs
Pierre Vandergheynst, Benjamin Ricaud, Nicolas Tremblay
The legacy of Joseph Fourier in science is vast, especially thanks to the essential tool that the Fourier transform is. The flexibility of this analysis, its computational efficiency and the physical interpretation it offers makes it a cornerstone in many ...
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER2019Learning voice source related information for depression detection
Subrahmanya Pavankumar Dubagunta
During depression neurophysiological changes can occur, which may affect laryngeal control i.e. behaviour of the vocal folds. Characterising these changes in a precise manner from speech signals is a non trivial task, as this typically involves reliable se ...
IEEE2019