Zobrazeno 1 - 10
of 992
pro vyhledávání: '"Sousa, José P."'
Noise is a fundamental problem in learning theory with huge effects in the application of Machine Learning (ML) methods, due to real world data tendency to be noisy. Additionally, introduction of malicious noise can make ML methods fail critically, a
Externí odkaz:
http://arxiv.org/abs/2406.08428
In a world where Machine Learning (ML) is increasingly deployed to support decision-making in critical domains, providing decision-makers with explainable, stable, and relevant inputs becomes fundamental. Understanding how machine learning works unde
Externí odkaz:
http://arxiv.org/abs/2401.11044
In the present work, first-principles calculations based on the density functional theory (DFT), GW approximation and Bethe-Salpeter equation (BSE) are performed to study the electronic and optical properties of penta-graphene (PG) monolayer. The res
Externí odkaz:
http://arxiv.org/abs/2401.05429
Carbon is the most important chemical element and the theoretical study of its new allotropes can be of great interest. In this study, regular dodecahedron (dodecahedrane) oligomers (n = 1, 3, 5, 7, 9, 11, 13) by extending the dodecahedrane units in
Externí odkaz:
http://arxiv.org/abs/2311.06614
Autor:
de Sousa, José Moreira
In Physics, we are generally interested in real solutions involving natural phenomena, where knowledge of real functions of real variables is sufficient to obtain physically relevant results. However, the complexity of phenomena associated with natur
Externí odkaz:
http://arxiv.org/abs/2310.13749
A novel two-dimensional carbon allotrope called PCF-graphene has been theoretically proposed. The development of its nanostructured morphology has arrangement a non-aromatic molecule cyclooctatetraene as a precursor (poly-cyclooctatetraene framework)
Externí odkaz:
http://arxiv.org/abs/2310.02178
In this work, we present a theoretical investigation of the elasticity properties of new exotic carbon allotropes studied recently called Irida-graphene and Sun-graphene. The Irida-graphene is a new 2D all-sp2 carbon allotrope composed of fused rings
Externí odkaz:
http://arxiv.org/abs/2310.02165
The availability of large data sets is providing an impetus for driving current artificial intelligent developments. There are, however, challenges for developing solutions with small data sets due to practical and cost-effective deployment and the o
Externí odkaz:
http://arxiv.org/abs/2308.12031
Autor:
Junior, Marcelo L. Pereira, De Sousa, José. M., Brandão, Wjefferson H. S., Galvão, Douglas. S., Fonseca, Alexandre F., Junior, Luiz A. Ribeiro
Me-graphene (MeG) is a novel two-dimensional (2D) carbon allotrope. Due to its attractive electronic and structural properties, it is important to study the mechanical behavior of MeG in its monolayer and nanotube topologies. In this work, we conduct
Externí odkaz:
http://arxiv.org/abs/2303.07518
Autor:
Sousa, Jose Risomar
Using a different approach, we derive integral representations for the Riemann zeta function and its generalizations (the Hurwitz zeta, $\zeta(-k,b)$, the polylogarithm, $\mathrm{Li}_{-k}(e^m)$, and the Lerch transcendent, $\Phi(e^m,-k,b)$), that coi
Externí odkaz:
http://arxiv.org/abs/2207.04013