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Digital Image Filtering Optimization Supporting Iberian Ham Quality Prediction
(MDPI, 2020)
Digital images of food for later analysis tend to be heterogeneous in terms of color and luminosity. Improving these images by using filters is necessary and crucial before further processing. This paper compares the non-use ...
Visibility graphs of ground-level ozone time series: A multifractal analysis
(Elsevier, 2019)
A recent method based on the concurrence of complex networks and multifractal analyses is applied for the first time to explore ground-level ozone behavior. Ozone time series are converted into complex networks for their ...
Multifractal analysis application to the study of fat and its infiltration in Iberian ham: Influence of racial and feeding factors and type of slicing
(Elsevier, 2019)
This paper explores the multifractal features of different commercial designations of Iberian ham (acorn 100% Iberian ham, acorn Iberian ham, feed/pasture Iberian ham and feed Iberian ham). This study has been done by ...
Multiplex Visibility Graphs as a complementary tool for describing the relation between ground level O3 and No2
(Elsevier, 2020)
The usage of multilayer complex networks for the analysis of correlations among environmental variables (such as O3and NO2concentrations from the photochemical smog) is investigated in this work. The mentioned technique ...
Improving graph-based detection of singular events for photochemical smog agents
(Elsevier, 2020)
Recently, a set of graph-based tools have been introduced for the identification of singular events of O3, NO2 and temperature time series, as well as description of their dynamics. These are based on the use of the ...
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 ...
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). ...
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 ...