Export Citations
Save this search
Please login to be able to save your searches and receive alerts for new content matching your search criteria.
- research-articleJuly 2024
Multivariate reduced rank regression by signal subspace matching
Signal Processing (SIGN), Volume 220, Issue Chttps://doi.org/10.1016/j.sigpro.2024.109425AbstractWe present a tuning-free and computationally simple solution for multivariate reduced rank regression, based on the recently introduced signal subspace matching (SSM) metric. Unlike the existing solutions, which solve simultaneously for the rank ...
Highlights- A tuning-free and low-complexity solution to the problem of reduced rank regression.
- The solution decouples the rank selection and coefficient matrix estimation into two stages.
- The rank is determined using the signal subspace ...
- research-articleJanuary 2024
Outliers Detection by Signal Subspace Matching
IEEE Transactions on Signal Processing (TSP), Volume 72Pages 2498–2511https://doi.org/10.1109/TSP.2024.3394652We present a novel solution to the problem of subspace outlier detection that does not assume prior knowledge of the number of outliers nor the dimension of the inliers subspace. The solution is based on the recently introduced notion of soft projection ...
- research-articleNovember 2023
Learning an optimised stable Taylor-Galerkin convection scheme based on a local spectral model for the numerical error dynamics
- Luciano Drozda,
- Pavanakumar Mohanamuraly,
- Lionel Cheng,
- Corentin Lapeyre,
- Guillaume Daviller,
- Yuval Realpe,
- Amir Adler,
- Gabriel Staffelbach,
- Thierry Poinsot
Journal of Computational Physics (JOCP), Volume 493, Issue Chttps://doi.org/10.1016/j.jcp.2023.112430AbstractWe present a new spectral framework to design and optimise numerical methods for convection problems termed Local Transfer function Analysis (LTA), which improves the state-of-art model for error dynamics due to numerical discretisation. LTA ...
Graphical abstract - research-articleApril 2023
FIR-SIMO channel order determination by invariant-signal-subspace matching
Digital Signal Processing (DISP), Volume 134, Issue Chttps://doi.org/10.1016/j.dsp.2023.103914AbstractWe present a novel and computationally simple solution to the problem of determining the order of finite impulse response (FIR) single-input multiple-output (SIMO) channel. The solution is applicable to ideal and realistic wireless ...
- research-articleMarch 2023
Vector Set Classification by Signal Subspace Matching
IEEE Transactions on Information Theory (ITHR), Volume 69, Issue 3Pages 1853–1865https://doi.org/10.1109/TIT.2022.3207686We present a powerful solution to the problem of vector set classification, based on a novel goodness-of-fit metric, referred to as signal subspace matching (SSM). Unlike the existing solutions based on principal component analysis (PCA), this solution is ...
- research-articleNovember 2022
Character-level HyperNetworks for Hate Speech Detection
Expert Systems with Applications: An International Journal (EXWA), Volume 205, Issue Chttps://doi.org/10.1016/j.eswa.2022.117571AbstractThe massive spread of hate speech, hateful content targeted at specific subpopulations, is a problem of critical social importance. Automated methods of hate speech detection typically employ state-of-the-art deep learning (DL)-based text ...
Highlights- Present compact character-based HyperNetworks for hate speech detection.
- These networks are trained using large-scale amounts of generated data.
- Performance is competitive and sometimes exceeds large pretrained language models.
- research-articleJanuary 2021
Detection of the Number of Signals by Signal Subspace Matching
IEEE Transactions on Signal Processing (TSP), Volume 69Pages 973–985https://doi.org/10.1109/TSP.2021.3053495We present a novel and computationally simple solution to the problem of detecting the number of signals, which is applicable to both white and colored noise, and to a very small number of samples. The solution is based on a novel and non-asymptotic ...
- research-articleJanuary 2021
Subspace-Constrained Array Response Estimation in the Presence of Model Errors
IEEE Transactions on Signal Processing (TSP), Volume 69Pages 417–427https://doi.org/10.1109/TSP.2020.3047002We present a novel solution to the problem of estimating the array response of the signal of interest (SOI) in case it is constrained to lie in a known subspace, aimed at coping with model errors in the known subspace. The solution is based on a novel ...
- research-articleJuly 2019
Constant modulus algorithms via low-rank approximation
Signal Processing (SIGN), Volume 160, Issue CPages 263–270https://doi.org/10.1016/j.sigpro.2019.02.007Highlights- A novel convex-optimization-based low-rank approximation approach to the solutions of a family of problems involving constant modulus signals.
We present a novel convex-optimization-based approach to the solutions of a family of problems involving constant modulus signals. The family of problems includes the constant modulus and the constrained constant modulus, as well as ...
- articleMay 2015
Sparse Coding with Anomaly Detection
Journal of Signal Processing Systems (JSPS), Volume 79, Issue 2Pages 179–188https://doi.org/10.1007/s11265-014-0913-0We consider the problem of simultaneous sparse coding and anomaly detection in a collection of data vectors. The majority of the data vectors are assumed to conform with a sparse representation model, whereas the anomaly is caused by an unknown subset ...
- research-articleMarch 2012
Audio Inpainting
IEEE Transactions on Audio, Speech, and Language Processing (TASLP-II), Volume 20, Issue 3Pages 922–932https://doi.org/10.1109/TASL.2011.2168211We propose the audio inpainting framework that recovers portions of audio data distorted due to impairments such as impulsive noise, clipping, and packet loss. In this framework, the distorted data are treated as missing and their location is assumed to ...
- ArticleSeptember 2010
A shrinkage learning approach for single image super-resolution with overcomplete representations
We present a novel approach for online shrinkage functions learning in single image super-resolution. The proposed approach leverages the classical Wavelet Shrinkage denoising technique where a set of scalar shrinkage functions is applied to the wavelet ...
- ArticleJuly 2005
Solving the 24 puzzle with instance dependent pattern databases
SARA'05: Proceedings of the 6th international conference on Abstraction, Reformulation and ApproximationPages 248–260https://doi.org/10.1007/11527862_18A pattern database (PDB) is a heuristic function in a form of a lookup table which stores the cost of optimal solutions for instances of subproblems. These subproblems are generated by abstracting the entire search space into a smaller space called the ...