The amount and complexity of data delivered by modern galaxy surveys has been steadily
increasing over the past years. New facilities will soon provide imaging and spectra of …

An array of large observational programs using ground-based and space-borne telescopes
is planned in the next decade. The forthcoming wide-field sky surveys are expected to …

We present reconstructed convergence maps, mass maps, from the Dark Energy Survey
(DES) third year (Y3) weak gravitational lensing data set. The mass maps are weighted …

In many cosmological inference problems, the likelihood (the probability of the observed
data as a function of the unknown parameters) is unknown or intractable. This necessitates …

As weak lensing surveys become deeper, they reveal more non-Gaussian aspects of the
convergence field which can only be extracted using statistics beyond the power spectrum …

In this work, which is the first of a series to prepare a cosmological parameter analysis with
third-order cosmic shear statistics, we model both the shear three-point correlation functions …

Widefield surveys probe clustered scalar fields–such as galaxy counts, lensing potential, etc.–
which are sensitive to different cosmological and astrophysical processes. Constraining …

In order to conduct an in-depth study on financial transactions of block chain, the classical
back propagation (BP) neural network based on the artificial neural network (ANN) model is …

We present a simulated cosmology analysis using the second and third moments of the
weak lensing mass (convergence) maps. The second moment, or variances, of the …

The peculiar velocities of dark matter haloes are crucial to study many issues in cosmology
and galaxy evolution. In this study, by using the state-of-the-art deep learning technique, a …