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Ammar Mian

4 accepted papers

2024

Random matrix theory improved Fréchet mean of symmetric positive definite matrices

ICML 2024poster

In this study, we consider the realm of covariance matrices in machine learning, particularly focusing on computing Fréchet means on the manifold of symmetric positive definite matrices, commonly referred to as Karcher or geometric means. Such means are leveraged in numerous machine learning tasks.…

2024

Renyi Divergences Learning for explainable classification of SAR Image Pairs

ICASSP 2024accepted

We consider the problem of classifying a pair of Synthetic Aperture Radar (SAR) images by proposing an explainable and frugal algorithm that integrates a set of divergences. The approach relies on a statistical framework that takes standard probability distributions into account for modelling SAR da…

Cited by 0SourceScholar
2019

Designing Sar Images Change-point Estimation Strategies Using an Mse Lower Bound

ICASSP 2019accepted

A growing problem in the remote sensing community concerns the estimation of change-points in a time series of Synthetic Aperture Radar (SAR) images. Although the methodologies of change-point estimation have already been investigated in the literature, there are, to the best of our knowledge, no st…

Cited by 0SourceScholar
2018

A Robust Change Detector for Highly Heterogeneous Multivariate Images

ICASSP 2018accepted

In this paper, we propose new detectors for Change Detection between two multivariate images. The data is supposed to fol-Iowa Compound Gaussian distribution. By using Likelihood Ratio Test (LRT) and Generalised LRT (GLRT) approaches, we derive our detectors. The CFAR behaviour has been studied and…

Cited by 0SourceScholar