Zobrazeno 1 - 10
of 423
pro vyhledávání: '"Castellanos, Alejandro"'
Relative representations are an established approach to zero-shot model stitching, consisting of a non-trainable transformation of the latent space of a deep neural network. Based on insights of topological and geometric nature, we propose two improv
Externí odkaz:
http://arxiv.org/abs/2409.10967
Autor:
García-Castellanos, Alejandro, Medbouhi, Aniss Aiman, Marchetti, Giovanni Luca, Bekkers, Erik J., Kragic, Danica
We propose HyperSteiner -- an efficient heuristic algorithm for computing Steiner minimal trees in the hyperbolic space. HyperSteiner extends the Euclidean Smith-Lee-Liebman algorithm, which is grounded in a divide-and-conquer approach involving the
Externí odkaz:
http://arxiv.org/abs/2409.05671
Opinion formation by belief propagation: A heuristic to identify low-credible sources of information
With social media, the flow of uncertified information is constantly increasing, with the risk that more people will trust low-credible information sources. To design effective strategies against this phenomenon, it is of paramount importance to unde
Externí odkaz:
http://arxiv.org/abs/2307.03278
Publikováno v:
Cuban Journal of Physics, 1, 2023
Population mobility can be studied readily and cheaply using cellphone data, since people's mobility can be approximately mapped into tower-mobile registries. We model people moving in a grid-like city, where edges of the grid are weighted and paths
Externí odkaz:
http://arxiv.org/abs/2303.00840
Autor:
Mendez-Estrella, Romeo, Romo-Leon, Jose, Castellanos, Alejandro, Gandarilla-Aizpuro, Fabiola, Hartfield, Kyle
Riparian Zones are considered biodiversity and ecosystem services hotspots. In arid environments, these ecosystems represent key habitats, since water availability makes them unique in terms of fauna, flora and ecological processes. Simple yet powerf
Externí odkaz:
http://hdl.handle.net/10150/621492
http://arizona.openrepository.com/arizona/handle/10150/621492
http://arizona.openrepository.com/arizona/handle/10150/621492
Autor:
Halvorson, William L., Castellanos, Alejandro E., Murrieta-Saldivar, Joaquin, Goldenetz, Jolie
From the Proceedings of the 2006 Meetings of the Hydrology Section - Arizona-Nevada Academy of Science - April 8, 2006, University of Arizona, Tucson
Externí odkaz:
http://hdl.handle.net/10150/296646
Autor:
Sandoval-Rangel, Ladislao, Ramírez-Murillo, Cinthia J., Dimas-Rivera, Gloria L., Rivera De La Rosa, Javier, Lucio-Ortiz, Carlos J., Ahmad, Ejaz, Nigam, K.D.P., Montesinos-Castellanos, Alejandro, Mendoza, Alberto
Publikováno v:
In Industrial Crops & Products 15 September 2024 216
The ancestral sequence reconstruction problem is the inference, back in time, of the properties of common sequence ancestors from measured properties of contemporary populations. Standard algorithms for this problem assume independent (factorized) ev
Externí odkaz:
http://arxiv.org/abs/2108.03801
We adapt the hybrid mechanistic-statistical approach of Ref. [1] to estimate the total number of undocumented Covid-19 infections in Cuba. This scheme is based on the maximum likelihood estimation of a SIR-like model parameters for the infected popul
Externí odkaz:
http://arxiv.org/abs/2008.03332
We apply the cavity master equation (CME) approach to epidemics models. We explore mostly the susceptible-infectious-susceptible (SIS) model, which can be readily treated with the CME as a two-state. We show that this approach is more accurate than i
Externí odkaz:
http://arxiv.org/abs/2006.15881