Waldemar Ratajczak
Dados Biográficos
| ID | 1520882 |
|---|---|
| NOME | Waldemar Ratajczak |
| PRENOMES | Waldemar |
| SOBRENOME | Ratajczak |
| ASSINATURA | RATAJCZAK W |
| AFILIAÇÕES | Adam Mickiewicz University in Poznań |
| ORCID | 0000-0002-0565-0761 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 4 |
| TOTAL DE CITAÇÕES | 2 |
| TOTAL COMO AUTOR | 4 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2019 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2023 |
| ÍNDICE H | 1 |
A novel Spatio-temporal principal component analysis based on Geary's contiguity ratio
Multivariate statistics have gained a respectable place in quantitative research, especially in the economic geography, socio-economic development, urban and regional planning and spatio-temporal analysis. The main goal is to reduce multidimensional data to simple, but meaningful representative information. One of the powerful methods in multivariate statistics is Principal Component Analysis (PCA). The aim of this paper is to define a novel Spat…
Basins of attraction around large cities - A study of urban interaction spaces in Europe
Sustainable Development of Polish Macroregions—Study by Means of the Kernel Discriminant Coordinates Method
The aim of this study was to investigate if the macroregions of Poland are homogeneous in terms of the observed spatio-temporal data characterizing their sustainable development. So far, works related to the sustainable development of selected territorial units have been based on data relating to a specific year rather than many years. The solution to the problem of macroregion homogeneity goes through two stages. In step one, the original spatio…
Geography in motion
The dynamics of spatial hierarchical processes displays fascinating images of the evolution of attraction basins of towns. Assuming in the present paper a random character of such complex processes, gravitational modeling is employed to depict changes in the nature of fuzzy boundaries between attraction basins in a hexagonal world, i.e. the geographical pattern central in the renowned and influential Christaller-Lösch central place theory in geog…
Basins of attraction around large cities - A study of urban interaction spaces in Europe
Geography in motion
The dynamics of spatial hierarchical processes displays fascinating images of the evolution of attraction basins of towns. Assuming in the present paper a random character of such complex processes, gravitational modeling is employed to depict changes in the nature of fuzzy boundaries between attraction basins in a hexagonal world, i.e. the geographical pattern central in the renowned and influential Christaller-Lösch central place theory in geog…
Geography in motion
The dynamics of spatial hierarchical processes displays fascinating images of the evolution of attraction basins of towns. Assuming in the present paper a random character of such complex processes, gravitational modeling is employed to depict changes in the nature of fuzzy boundaries between attraction basins in a hexagonal world, i.e. the geographical pattern central in the renowned and influential Christaller-Lösch central place theory in geog…
Sustainable Development of Polish Macroregions—Study by Means of the Kernel Discriminant Coordinates Method
The aim of this study was to investigate if the macroregions of Poland are homogeneous in terms of the observed spatio-temporal data characterizing their sustainable development. So far, works related to the sustainable development of selected territorial units have been based on data relating to a specific year rather than many years. The solution to the problem of macroregion homogeneity goes through two stages. In step one, the original spatio…
Basins of attraction around large cities - A study of urban interaction spaces in Europe
A novel Spatio-temporal principal component analysis based on Geary's contiguity ratio
Multivariate statistics have gained a respectable place in quantitative research, especially in the economic geography, socio-economic development, urban and regional planning and spatio-temporal analysis. The main goal is to reduce multidimensional data to simple, but meaningful representative information. One of the powerful methods in multivariate statistics is Principal Component Analysis (PCA). The aim of this paper is to define a novel Spat…
Geography (4 obras) · Mathematics (4 obras) · Computer Science (3 obras) · Artificial Intelligence (2 obras) · Economic geography (2 obras) · Homogeneous (2 obras) · Land Use and Ecosystem Services (2 obras) · Statistics (2 obras) · Urban Design and Spatial Analysis (2 obras) · Advanced Statistical Methods and Models (1 obras)