7 papers
Dynamical Dark Energy Properties Hidden in the Dark Matter Halos and Voids
Aghileh S Ebrahimi, A. Vafaei Sadr, S. Tavasoli
In this paper, we analysed the halos and voids properties of a GR-based N-body simulation carried out at redshifts z= 0.0 and z= 0.8 as differences between dynamical dark energy mo…
Square Kilometre Array Science Data Challenge 1: analysis and results
A. Bonaldi, T. An, M. Bruggen +42
As the largest radio telescope in the world, the Square Kilometre Array (SKA) will lead the next generation of radio astronomy. The feats of engineering required to construct the t…
IMDb data from Two Generations, from 1979 to 2019; Part one, Dataset Introduction and Preliminary Analysis
M. Bahraminasr, A. Vafaei Sadr
"IMDb" as a user-regulating and one the most-visited portal has provided an opportunity to create an enormous database. Analysis of the information on Internet Movie Database - IMD…
Deep Learning improves identification of Radio Frequency Interference
Alireza Vafaei Sadr, Bruce A. Bassett, Nadeem Oozeer +2
Flagging of Radio Frequency Interference (RFI) is an increasingly important challenge in radio astronomy. We present R-Net, a deep convolutional ResNet architecture that significan…
Inpainting via Generative Adversarial Networks for CMB data analysis
Alireza Vafaei Sadr, Farida Farsian
In this work, we propose a new method to inpaint the CMB signal in regions masked out following a point source extraction process. We adopt a modified Generative Adversarial Networ…
Clustering of Local Extrema in Planck CMB maps
A. Vafaei Sadr, S. M. S. Movahed
The clustering of local extrema will be exploited to examine Gaussianity, asymmetry, and the footprint of the cosmic-string network on the CMB observed by Planck. The number densit…