36 citations · 77 across the 9 of their papers we have counts for
4 papers · 1 filter
Time and covariance smoothing for restoration of bivariate signals
Yusuf Yigit Pilavci, Pierre Palud, Julien Flamant +3
In many applications and physical phenomena, bivariate signals are polarized, i.e. they trace an elliptical trajectory over time when viewed in the 2D planes of their two component…
Denoising bivariate signals via smoothing and polarization priors
Yusuf Yigit Pilavci, Jérémie Boulanger, Pierre-Antoine Thouvenin +1
We propose two formulations to leverage the geometric properties of bivariate signals for dealing with the denoising problem. In doing so, we use the instantaneous Stokes parameter…
Variance Reduction for Inverse Trace Estimation via Random Spanning Forests
Yusuf Yigit Pilavci, Pierre-Olivier Amblard, Simon Barthelme +1
The trace $\tr(q(\ma{L} + q\ma{I})^{-1})$, where $\ma{L}$ is a symmetric diagonally dominant matrix, is the quantity of interest in some machine learning problems. However, its dir…
Variance reduction in stochastic methods for large-scale regularised least-squares problems
Yusuf Pilavcı, Pierre-Olivier Amblard, Simon Barthelmé +1
Large dimensional least-squares and regularised least-squares problems are expensive to solve. There exist many approximate techniques, some deterministic (like conjugate gradient)…