Buscar
Mostrando ítems 11-19 de 19
A sliding window-based algorithm for faster transformation of time series into complex networks
(AIP Publishing, 2019)
A new alternative method to approximate the Visibility Graph (VG) of a time series has been introduced here. It exploits the fact that most of the nodes in the resulting network are not connected to those that are far away ...
Background PM10 atmosphere: In the seek of a multifractal characterization using complex networks
(Elsevier, 2021)
In the literature, several epidemiological studies have already associated respiratory and cardiovascular diseases to acute exposure of mineral dust. However, frail people are also sensitive to chronic exposure to particulate ...
Multifractal characterisation of particulate matter (PM10) time series in the Caribbean basin using visibility graphs
(Elsevier, 2021)
A good knowledge of pollutant time series behavior is fundamental to elaborate strategies and construct tools to protect human health. In Caribbean area, air quality is frequently deteriorated by the transport of African ...
Can complex networks describe the urban and rural tropospheric O3 dynamics?
(Elsevier, 2019)
Tropospheric ozone (O3)time series have been converted into complex networks through the recent so-called Visibility Graph (VG), using the data from air quality stations located in the western part of Andalusia (Spain). ...
Multifractal fluctuations of the precipitation in Spain (1960–2019)
(Elsevier, 2022)
In this work, an analysis of multifractal parameters of daily precipitation series over the Iberian Peninsula was performed in two 30-year periods to explore whether these properties follow any pattern. Fluctuations of ...
Joint multifractal analysis of air temperature, relative humidity and reference evapotranspiration in the middle zone of the Guadalquivir river valley
(Elsevier, 2019)
Previous works have analysed the relationship existing between reference evapotranspiration (ET0) and other climatic variables under a one-at-a-time perturbation condition. However, due to the physical relationships between ...
Checking complex networks indicators in search of singular episodes of the photochemical smog
(Elsevier, 2020)
A set of indicators derived from the analysis of complex networks have been introduced to identify singularities on a time series. To that end, the Visibility Graphs (VG) from three different signals related to photochemical ...
Multifractal detrended fluctuation analysis of sheep livestock prices in origin
(Elsevier, 2013)
The multifractal detrended fluctuation analysis (MF-DFA) is used to verify whether or not the returns of time series of prices paid to farmers in original markets can be described by the multifractal approach. By way of ...
A 3D Descriptive Geometry Problem-Solving Methodology Using CAD and Orthographic Projection
(MDPI, 2024)
In solving descriptive geometry (DG) problems, board (i.e., hand drawing) methods are frequently used, despite this discipline is still very important to enhance spatial vision. These methods are very different from CAD ...