25 citations · 63 across the 5 of their papers we have counts for
6 papers
A Gaussian process cross-correlation approach to time delay estimation in active galactic nuclei
F. Pozo Nuñez, N. Gianniotis, K. L. Polsterer
We present a probabilistic cross-correlation approach to estimate time delays in the context of reverberation mapping (RM) of Active Galactic Nuclei (AGN). We reformulate the tradi…
Disentangling the optical AGN and Host-galaxy luminosity with a probabilistic Flux Variation Gradient
N. Gianniotis, F. Pozo Nuñez, K. L. Polsterer
We present a novel Probabilistic Flux Variation Gradient (PFVG) approach to to separate the contributions of active galactic nuclei (AGN) and host galaxies in the context of photom…
Optical continuum photometric reverberation mapping of the Seyfert-1 galaxy Mrk509
F. Pozo Nuñez, N. Gianniotis, J. Blex +6
We present the results of a two year optical continuum photometric reverberation mapping campaign carried out on the nucleus of the Seyfert-1 galaxy Mrk509. Specially designed narr…
Efficient Optimization of Echo State Networks for Time Series Datasets
Jacob Reinier Maat, Nikos Gianniotis, Pavlos Protopapas
Echo State Networks (ESNs) are recurrent neural networks that only train their output layer, thereby precluding the need to backpropagate gradients through time, which leads to sig…
Modelling multimodal photometric redshift regression with noisy observations
S. D. Kügler, N. Gianniotis
In this work, we are trying to extent the existing photometric redshift regression models from modeling pure photometric data back to the spectra themselves. To that end, we develo…
Featureless Classification of Light Curves
Sven Dennis Kügler, Nikos Gianniotis, Kai Lars Polsterer
In the era of rapidly increasing amounts of time series data, classification of variable objects has become the main objective of time-domain astronomy. Classification of irregular…