Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Xavier, Henrique S."'
Autor:
Xavier, Henrique S.
This paper examines the potential of the Fediverse, a federated network of social media and content platforms, to counter the centralization and dominance of commercial platforms on the social Web. We gather evidence from the technology powering the
Externí odkaz:
http://arxiv.org/abs/2408.15383
Autor:
Xavier, Henrique S.
This paper presents a comprehensive analysis of global web usage patterns based on data from SimilarWeb, a leading source for estimating web traffic. Leveraging a dataset comprising over 250,000 websites, we estimate the total web traffic and investi
Externí odkaz:
http://arxiv.org/abs/2404.17095
Autor:
Xavier, Henrique S., Cortiz, Diogo, Silvestrin, Mateus, Freitas, Ana Luísa, Morello, Letícia Yumi Nakao, Pantaleão, Fernanda Naomi, Rêgo, Gabriel Gaudencio do
This paper introduces a Bayesian framework designed to measure the degree of association between categorical random variables. The method is grounded in the formal definition of variable independence and is implemented using Markov Chain Monte Carlo
Externí odkaz:
http://arxiv.org/abs/2311.05330
Autor:
Xavier, Henrique S.
Publikováno v:
JCAP04(2019)037
The increasing area and depth of galaxy surveys will give us access to the largest scales in the Universe and allow for a direct test of the primordial power spectrum set by inflation. To take full advantage of the survey's volume, we must deal with
Externí odkaz:
http://arxiv.org/abs/1903.04383
Autor:
Loureiro, Arthur, Cuceu, Andrei, Abdalla, Filipe B., Moraes, Bruno, Whiteway, Lorne, McLeod, Michael, Balan, Sreekumar T., Lahav, Ofer, Benoit-Lévy, Aurélien, Manera, Marc, Rollins, Richard P., Xavier, Henrique S.
Publikováno v:
Phys. Rev. Lett. 123, 081301 (2019)
We investigate the impact of prior models on the upper bound of the sum of neutrino masses, $\sum m_{\nu}$. We use data from Large Scale Structure of galaxies, Cosmic Microwave Background, Type Ia SuperNovae, and Big Bang Nucleosynthesis. We probe ph
Externí odkaz:
http://arxiv.org/abs/1811.02578
Autor:
Loureiro, Arthur, Moraes, Bruno, Abdalla, Filipe B., Cuceu, Andrei, McLeod, Michael, Whiteway, Lorne, Balan, Sreekumar T., Benoit-Lévy, Aurélien, Lahav, Ofer, Manera, Marc, Rollins, Richard, Xavier, Henrique S.
Publikováno v:
Monthly Notices of the Royal Astronomical Society (2019) 485, 326
We constrain cosmological parameters by analysing the angular power spectra of the Baryon Oscillation Spectroscopic Survey DR12 galaxies, a spectroscopic follow-up of around 1.3 million SDSS galaxies over 9,376 deg$^2$ with an effective volume of $\s
Externí odkaz:
http://arxiv.org/abs/1809.07204
The recent progress in obtaining larger and deeper galaxy catalogues is of fundamental importance for cosmological studies, especially to robustly measure the large scale density fluctuations in the Universe. The present work uses the Minkowski Funct
Externí odkaz:
http://arxiv.org/abs/1805.04078
Publikováno v:
MNRAS 459:3693 (2016)
It is common practice in cosmology to model large-scale structure observables as lognormal random fields, and this approach has been successfully applied in the past to the matter density and weak lensing convergence fields separately. We argue that
Externí odkaz:
http://arxiv.org/abs/1602.08503
Autor:
Xavier, Henrique S., Abramo, L. Raul, Sako, Masao, Benítez, Narciso, Calvão, Maurício O., Ederoclite, Alessandro, Marín-Franch, Antonio, Molino, Alberto, Reis, Ribamar R. R., Siffert, Beatriz B., Sodré Jr, Laerte
Publikováno v:
MNRAS 444:2313 (2014)
We study the characteristics of a narrow band type Ia supernova survey through simulations based on the upcoming Javalambre Physics of the accelerating universe Astrophysical Survey (J-PAS). This unique survey has the capabilities of obtaining distan
Externí odkaz:
http://arxiv.org/abs/1312.5706
Autor:
Xavier, Henrique S., Gupta, Ravi R., Sako, Masao, D'Andrea, Chris B., Frieman, Joshua A., Galbany, Lluis, Garnavich, Peter M., Marriner, John, Nichol, Robert C., Olmstead, Matthew D., Schneider, Donald P., Smith, Mathew
Publikováno v:
MNRAS 434:1443 (2013)
We used the GMBCG galaxy cluster catalogue and SDSS-II supernovae data with redshifts measured by the BOSS project to identify 48 SNe Ia residing in rich galaxy clusters and compare their properties with 1015 SNe Ia in the field. Their light curves w
Externí odkaz:
http://arxiv.org/abs/1304.6431