Výsledky vyhledávání - "Freitas, Vander L. S."

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Leveraging Visibility Graphs for Enhanced Arrhythmia Classification with Graph Convolutional Networks

Autor: Oliveira, Rafael F., Moreira, Gladston J. P., Freitas, Vander L. S., Luz, Eduardo J. S.

Arrhythmias, detectable via electrocardiograms (ECGs), pose significant health risks, emphasizing the need for robust automated identification techniques. Although traditional deep learning methods have shown potential, recent advances in graph-based

Externí odkaz: http://arxiv.org/abs/2404.15367

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Flood risk map from hydrological and mobility data: a case study in S\~ao Paulo (Brazil)

Autor: Tomás, Lívia Rodrigues, Soares, Giovanni Guarnieri, Jorge, Aurelienne A. S., Mendes, Jeferson Feitosa, Freitas, Vander L. S., Santos, Leonardo B. L.

Cities increasingly face flood risk primarily due to extensive changes of the natural land cover to built-up areas with impervious surfaces. In urban areas, flood impacts come mainly from road interruption. This paper proposes an urban flood risk map

Externí odkaz: http://arxiv.org/abs/2204.05982

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Global-threshold and backbone high-resolution weather radar networks are significantly complementary in a watershed

Autor: Jorge, Aurelienne A. S., Diniz, Iuri da Silva, Freitas, Vander L. S., Costa, Izabelly C., Santos, Leonardo B. L.

There are several criteria for building up networks from time series related to different points in geographical space. The most used criterion is the Global-Threshold (GT). Using a weather radar dataset, this paper shows that the Backbone (BB) - a l

Externí odkaz: http://arxiv.org/abs/2201.05503

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Vulnerability analysis in Complex Networks under a Flood Risk Reduction point of view

Autor: Santos, Leonardo B. L., Soares, Giovanni G., Garg, Tanishq, Jorge, Aurelienne A. S., Londe, Luciana R., Reani, Regina T., Bacelar, Roberta B., Oliveira, Carlos E. S., Freitas, Vander L. S., Sokolov, Igor M.

The measurement and mapping of transportation network vulnerability to natural hazards constitute subjects of global interest, especially due to climate change, and for a sustainable development agenda. During a flood, some elements of a transportati

Externí odkaz: http://arxiv.org/abs/2012.12029

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Robustness analysis in an inter-cities mobility network: modeling municipal, state and federal initiatives as failures and attacks

Autor: Freitas, Vander L. S., Feitosa, Jeferson, Sepetauskas, Catia S. N., Santos, Leonardo B. L.

Motivated by the challenge related to the COVID-19 epidemic and the seek for optimal containment strategies, we present a robustness analysis into an inter-cities mobility complex network. We abstract municipal initiatives as nodes' failures and the

Externí odkaz: http://arxiv.org/abs/2004.02648

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