Výsledky vyhledávání - "Gutiérrez, Gilberto"

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Compressed Data Structures for Binary Relations in Practice

Autor: Quijada-Fuentes, Carlos, Penabad, Miguel R., Ladra, Susana, Gutiérrez, Gilberto

Publikováno v: IEEE Access 8, pp. 25949-25963 (2020)

Binary relations are commonly used in Computer Science for modeling data. In addition to classical representations using matrices or lists, some compressed data structures have recently been proposed to represent binary relations in compact space, su

Externí odkaz: http://arxiv.org/abs/2002.09041

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Efficient processing of raster and vector data

Autor: Silva-Coira, Fernando, Paramá, José R., Ladra, Susana, López, Juan R., Gutiérrez, Gilberto

Publikováno v: PLoS ONE 15(1): e0226943

In this work, we propose a framework to store and manage spatial data, which includes new efficient algorithms to perform operations accepting as input a raster dataset and a vector dataset. More concretely, we present algorithms for solving a spatia

Externí odkaz: http://arxiv.org/abs/1912.11866

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A Compact Representation of Raster Time Series

Autor: Cruces, Nataly, Seco, Diego, Gutiérrez, Gilberto

Publikováno v: Proceedings of the Data Compression Conference (DCC 2019)

The raster model is widely used in Geographic Information Systems to represent data that vary continuously in space, such as temperatures, precipitations, elevation, among other spatial attributes. In applications like weather forecast systems, not j

Externí odkaz: http://arxiv.org/abs/1901.01944

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Linear Separability in Spatial Databases

Autor: Gutiérrez, Gilberto, Pérez-Lantero, Pablo, Torres, Claudio

Given two point sets $R$ and $B$ in the plane, with cardinalities $m$ and $n$, respectively, and each set stored in a separate R-tree, we present an algorithm to decide whether $R$ and $B$ are linearly separable. Our algorithm exploits the structure

Externí odkaz: http://arxiv.org/abs/1602.04399

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