Exploratory spatial analysis of maritime clusters

Geo-environmental parametric 3D models of SARS-CoV-2 virus circulation in hospital ventilation systems

“…The database is analyzed to identify the number of building characteristics, the number of repeated data entries and the integrity of the data sets. Data cleansing is necessary in order to create a complete data set, which is used as an input for clustering algorithms ( Stavroulakis et al, 2020 , Ueda et al, 2020 ). This is necessary as some cluster procedures cannot handle missing values ​​( Cai et al, 2020 , Stavroulakis et al, 2020 ).…”

“…Data cleansing is necessary in order to create a complete data set, which is used as an input for clustering algorithms ( Stavroulakis et al, 2020 , Ueda et al, 2020 ). This is necessary as some cluster procedures cannot handle missing values ​​( Cai et al, 2020 , Stavroulakis et al, 2020 ). Missing data removal procedures were performed, which resulted in a decreased number of available entries.…”

Assessing the Self-Report Instruments of Younger Versus Older Riders Involved in Near-Miss Motorcycle Incidents

“…The elements were derived through the application of the principal component analysis (PCA) method with the varimax rotation technique. The factor loading values set the threshold criterion for considering values greater than 0.3 [66,67]. Furthermore, Hair et al [59] recommended that the Kaiser-Meyer-Olkin (KMO) value be accepted if it exceeds 0.5.…”

Transportation, the pathogen vector to rule them all: Evidence from the recent coronavirus pandemic

“…A note should be inserted here, that cluster theory may pertain to viable solutions, in the same manner that Snow's cholera clusters gave birth to epidemiology, on the grounds that what sets clusters apart is the stance with respect to a culture of health and mutualism ( Stavroulakis and Papadimitriou, 2016 , 2017 ). Not only this, but current research has already relinquished instruments for the study and assessment of a variety of variables in clusters, including geographical and transportation systems' aspects, as well as elements of a culture of prevention, health, and sustainability ( Stavroulakis et al, 2019 , 2020 , 2021 ).…”