Arthur Getis
Dados Biográficos
| ID | 1023095 |
|---|---|
| NOME | Arthur Getis |
| PRENOMES | Arthur |
| SOBRENOME | Getis |
| ASSINATURA | GETIS A |
| AFILIAÇÕES | San Diego State University |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 42 |
| TOTAL DE CITAÇÕES | 111 |
| TOTAL COMO AUTOR | 41 |
| TOTAL COMO EDITOR | 1 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1963 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2015 |
| ÍNDICE H | 7 |
Spatial Association, Measures of
Analytically derived neighborhoods in a rapidly growing West African city
Connecting the Dots Between Health, Poverty and Place in Accra, Ghana
West Africa has a rapidly growing population, an increasing fraction of which lives in urban informal settlements characterized by inadequate infrastructure and relatively high health risks. Little is known, however, about the spatial or health characteristics of cities in this region or about the spatial inequalities in health within them. In this article we show how we have been creating a data-rich field laboratory in Accra, Ghana, to connect …
Handbook of Applied Spatial Analysis
Neighborhoods and Fertility in Accra, Ghana
Fertility levels remain high in most of sub-Saharan Africa, despite recent declines, and even in a large capital city such as Accra, Ghana, women are having children at a pace that is well above replacement level and this will contribute to significant levels of future population growth in the city. Our purpose in this paper is to evaluate the way in which neighborhood context may shape reproductive behavior in Accra. In the process, we introduce…
A History of the Concept of Spatial Autocorrelation
Spatial autocorrelation is a concept that helps to define the field of spatial analysis. It is central to studies using spatial statistics and spatial econometrics. In this paper, we trace the early development of the concept and explain the academic links that brought the concept to the fore in the late 1960s. In geography, the importance of the work of Michael F. Dacey, Andrew D. Cliff, and J. Keith Ord is emphasized. Later, with the publicatio…
Can we spot a neighborhood from the air? Defining neighborhood structure in Accra, Ghana
Ethnic Residential Patterns as Predictors of Intra-Urban Child Mortality Inequality in Accra, Ghana
As cities of developing nations absorb an increasing fraction of the world's population increase, questions have arisen about the potential for emerging inequalities in health within places that are already suffering from inadequate infrastructure. In this paper we explore the pattern of child mortality inequalities (as a proxy for overall health levels) within a large sub-Saharan African city-Accra, Ghana-and then we examine the extent to which …
Constructing the Spatial Weights Matrix Using a Local Statistic
Spatial weights matrices are necessary elements in most regression models where a representation of spatial structure is needed. We construct a spatial weights matrix, W , based on the principle that spatial structure should be considered in a two‐part framework, those units that evoke a distance effect, and those that do not. Our two‐variable local statistics model (LSM) is based on the G i * local statistic. The local statistic concept depends …
The Fertility Transition in Egypt
Fertility transitions are historically thought to have started in cities and then spread to the rest of the country. This would suggest that in Egypt wewould find that Cairo was well ahead of the rest of the nation in its fertility transition. The data suggest otherwise and highlight the fact that many parts of Cairo are still experiencing high levels of fertility. Population geographers have generally examined differences only between urban and …
Path breaking books in regional science
The Effectiveness of Internet-based Instruction
Geographers increasingly use the Internet as an instructional tool in higher education. The effect of Internet-based instruction on learning, however, is essentially unknown. This research involves a matched-pairs experiment that assesses the differences in student performance between a group of students taking an Internet-based lesson in introductory physical geography, and another group learning the same material via traditional classroom metho…
Comparative Spatial Filtering in Regression Analysis
One approach to dealing with spatial autocorrelation in regression analysis involves the filtering of variables in order to separate spatial effects from the variables’ total effects. In this paper we compare two filtering approaches, both of which allow spatial statistical analysts to use conventional linear regression models. Getis’ filtering approach is based on the autocorrelation observed with the use of the G i local statistic. Griffith's a…
New advances in spatial interaction theory
New advances in spatial interaction theory
Local Spatial Autocorrelation Statistics
The statistics G i (d) and G i *(d), introduced in Getis and Ord (1992) for the study of local pattern in spatial data, are extended and their properties further explored. In particular, nonbinary weights are allowed and the statistics are related to Moran's autocorrelation statistic, I. The correlations between nearby values of the statistics are derived and verified by simulation. A Bonferroni criterion is used to approximate significance level…
Cliff, A.D. and Ord, J.K. 1973
Introduction
Introduction
Scholarship, Leadership, and Quantitative Methods
This paper explores the supposition that quantitative geography, broadly defined, is the key to the survival of geography as a discipline. Thirteen events of the last 40 years are identified that have laid the groundwork for the success of a number of strong geography departments. These include some of the activities that occurred at the University of Washington, Northwestern University, Bristol University, The University of Iowa, The Ohio State …
The Analysis of Spatial Association by Use of Distance Statistics
Introduced in this paper is a family of statistics, G , that can be used as a measure of spatial association in a number of circumstances. The basic statistic is derived, its properties are identified, and its advantages explained. Several of the G statistics make it possible to evaluate the spatial association of a variable within a specified distance of a single point. A comparison is made between a general G statistic and Moran's I for similar…
Spatial Interaction and Spatial Autocorrelation
A cross-product statistic is used to demonstrate that spatial interaction models are a special case of a general model of spatial autocorrelation. A series of traditional measures of spatial autocorrelation is shown to have a cross-product form. Several interaction models are shown to have a similar form. A general spatial statistic is developed which indicates that the relationship between the two types of models is particularly strong when the …
Screening for spatial dependence in regression analysis
Screening for Spatial Dependence in Regression Analysis
Metropolis
Metropolis: From the Division of Labor to Urban Form, Allen J. Scott." Urban Geography, 11(5), pp. 521–522
Can we spot a neighborhood from the air? Defining neighborhood structure in Accra, Ghana
Interaction Modeling Using Second-Order Analysis
After the author has reviewed second-order theory for map-pattern analysis, he sets forth an approach for the study of interaction where spatial structure is implicitly built into various pattern models. The models are models of clustering when all members of the cluster are centered at one point. A density analysis is proposed where spatial autocorrelation may be discerned. An example using population distribution in East Anglia, 1971, is given …
Neighborhoods and Fertility in Accra, Ghana
Fertility levels remain high in most of sub-Saharan Africa, despite recent declines, and even in a large capital city such as Accra, Ghana, women are having children at a pace that is well above replacement level and this will contribute to significant levels of future population growth in the city. Our purpose in this paper is to evaluate the way in which neighborhood context may shape reproductive behavior in Accra. In the process, we introduce…
Spatial Interaction and Spatial Autocorrelation
A cross-product statistic is used to demonstrate that spatial interaction models are a special case of a general model of spatial autocorrelation. A series of traditional measures of spatial autocorrelation is shown to have a cross-product form. Several interaction models are shown to have a similar form. A general spatial statistic is developed which indicates that the relationship between the two types of models is particularly strong when the …
Screening for spatial dependence in regression analysis
Models of Spatial Processes
1. An Introduction to spatial processes 2. Point patterns: Poisson process model 3. Point patterns: mixed Poisson process models 4. Truly contagious models, disturbed lattices and information theory 5. Line patterns 6. Area patterns: the cell model 7. Area patterns: the Johnson-Mehl model 8. Area patterns: clumping models
Temporal Land-Use Pattern Analysis With the Use of Nearest Neighbor and Quadrat Methods 1
(1964). TEMPORAL LAND-USE PATTERN ANALYSIS WITH THE USE OF NEAREST NEIGHBOR AND QUADRAT METHODS. Annals of the Association of American Geographers: Vol. 54, No. 3, pp. 391-399
The Fertility Transition in Egypt
Fertility transitions are historically thought to have started in cities and then spread to the rest of the country. This would suggest that in Egypt wewould find that Cairo was well ahead of the rest of the nation in its fertility transition. The data suggest otherwise and highlight the fact that many parts of Cairo are still experiencing high levels of fertility. Population geographers have generally examined differences only between urban and …
A Method for the Study of Sequences in Geography
The Effectiveness of Internet-based Instruction
Geographers increasingly use the Internet as an instructional tool in higher education. The effect of Internet-based instruction on learning, however, is essentially unknown. This research involves a matched-pairs experiment that assesses the differences in student performance between a group of students taking an Internet-based lesson in introductory physical geography, and another group learning the same material via traditional classroom metho…
Connecting the Dots Between Health, Poverty and Place in Accra, Ghana
West Africa has a rapidly growing population, an increasing fraction of which lives in urban informal settlements characterized by inadequate infrastructure and relatively high health risks. Little is known, however, about the spatial or health characteristics of cities in this region or about the spatial inequalities in health within them. In this article we show how we have been creating a data-rich field laboratory in Accra, Ghana, to connect …
Screening for Spatial Dependence in Regression Analysis
The Determination of the Location of Retail Activities with the Use of a Map Transformation
(1963). The Determination of the Location of Retail Activities with the Use of a Map Transformation. Economic Geography: Vol. 39, No. 1, pp. 14-22
Ethnic Residential Patterns as Predictors of Intra-Urban Child Mortality Inequality in Accra, Ghana
As cities of developing nations absorb an increasing fraction of the world's population increase, questions have arisen about the potential for emerging inequalities in health within places that are already suffering from inadequate infrastructure. In this paper we explore the pattern of child mortality inequalities (as a proxy for overall health levels) within a large sub-Saharan African city-Accra, Ghana-and then we examine the extent to which …
Path breaking books in regional science
Scholarship, Leadership, and Quantitative Methods
This paper explores the supposition that quantitative geography, broadly defined, is the key to the survival of geography as a discipline. Thirteen events of the last 40 years are identified that have laid the groundwork for the success of a number of strong geography departments. These include some of the activities that occurred at the University of Washington, Northwestern University, Bristol University, The University of Iowa, The Ohio State …
The Social Production of Urban Space
Retail Store Spatial Affinities
Heterogeneous and homogeneous data sets are examined to determine whether retail store spatial affinities exist within the central business districts of a sample of American cities. Use is made of a test designed to identify statistically significant spatial associations. The findings of the study suggest that there are undoubtedly some significant affinities between business types, but that they are very limited in number and not constant from c…
Analytically derived neighborhoods in a rapidly growing West African city
The Economic Health of Municipalities within a Metropolitan Region
A causal model is developed that links the effects changes in employment and unemployment have on response variables that represent the economic health of 184 municipalities in the Chicago SMSA for 1980. Two causal series of paths are particularly helpful in identifying economic health. One represents the current level of health; the other, more relevant, path represents the trend during the period 1970-1980. By use of an index based on the path …
Urban Population Spacing Analysis
Spacing analysis is introduced as a supplement or alternative to the traditional density gradient analysis for urban areas. Weaknesses in the use of the natural loglinear model of density are outlined. The spacing analysis is based on a second-order approach to spatial statistics. As an example, the population of Des Moines for the period 1960-1980 is analyzed. Results reveal that spacing analysis avoids many of the problems inherent in tradition…
The Merchant's World
(1971). The Merchant's World: The Geography of Wholesaling. Economic Geography: Vol. 47, No. 3, pp. 461-461
The Determination of the Location of Retail Activities with the Use of a Map Transformation
(1963). The Determination of the Location of Retail Activities with the Use of a Map Transformation. Economic Geography: Vol. 39, No. 1, pp. 14-22
Temporal Land-Use Pattern Analysis With the Use of Nearest Neighbor and Quadrat Methods 1
(1964). TEMPORAL LAND-USE PATTERN ANALYSIS WITH THE USE OF NEAREST NEIGHBOR AND QUADRAT METHODS. Annals of the Association of American Geographers: Vol. 54, No. 3, pp. 391-399
A Method for the Study of Sequences in Geography
Retail Store Spatial Affinities
Heterogeneous and homogeneous data sets are examined to determine whether retail store spatial affinities exist within the central business districts of a sample of American cities. Use is made of a test designed to identify statistically significant spatial associations. The findings of the study suggest that there are undoubtedly some significant affinities between business types, but that they are very limited in number and not constant from c…
The Merchant's World
(1971). The Merchant's World: The Geography of Wholesaling. Economic Geography: Vol. 47, No. 3, pp. 461-461
Other Revolutionary Paradigms
Ecologic-Economic Analysis for Regional Development
Probability model approach to map pattern analysis
Models of Spatial Processes
1. An Introduction to spatial processes 2. Point patterns: Poisson process model 3. Point patterns: mixed Poisson process models 4. Truly contagious models, disturbed lattices and information theory 5. Line patterns 6. Area patterns: the cell model 7. Area patterns: the Johnson-Mehl model 8. Area patterns: clumping models
Applied Linear Programming
Interaction Modeling Using Second-Order Analysis
After the author has reviewed second-order theory for map-pattern analysis, he sets forth an approach for the study of interaction where spatial structure is implicitly built into various pattern models. The models are models of clustering when all members of the cluster are centered at one point. A density analysis is proposed where spatial autocorrelation may be discerned. An example using population distribution in East Anglia, 1971, is given …
Urban Population Spacing Analysis
Spacing analysis is introduced as a supplement or alternative to the traditional density gradient analysis for urban areas. Weaknesses in the use of the natural loglinear model of density are outlined. The spacing analysis is based on a second-order approach to spatial statistics. As an example, the population of Des Moines for the period 1960-1980 is analyzed. Results reveal that spacing analysis avoids many of the problems inherent in tradition…
The Economic Health of Municipalities within a Metropolitan Region
A causal model is developed that links the effects changes in employment and unemployment have on response variables that represent the economic health of 184 municipalities in the Chicago SMSA for 1980. Two causal series of paths are particularly helpful in identifying economic health. One represents the current level of health; the other, more relevant, path represents the trend during the period 1970-1980. By use of an index based on the path …
The Social Production of Urban Space
Urban Evolution
(1988). Urban Evolution: Studies in the Mathematical Ecology of Cities. Dimitrios S. Dendrinos with Henry Mullally, and Migration, Urbanization, and Spatial Population Dynamics. Andrei Rogers; Urbanization in China: Town and Country in a Developing Economy 1949-2000 AD. R. J. R. Kirkby; The Emergence of Los Angeles: Population and Housing in the City of Dreams, 1940-1970. Bernard Marchand. Urban Geography: Vol. 9, Women and Employment, pp. 217-22…
Spatial Autocorrelation
A Spatial Causal Model of Economic Interdependency among Neighboring Communities
A model is presented with which one may identify appropriate spatial lags in a recursive system. The example system represents economic well-being of municipalities in an urban region; the Boston region is used for the case study. The additional explained variation due to the effect of nearby municipalities on the municipality in question may be accounted for with this model. Methods for handling the problems of data additivity and overlap of spa…
Screening for spatial dependence in regression analysis
Screening for Spatial Dependence in Regression Analysis
Metropolis
Metropolis: From the Division of Labor to Urban Form, Allen J. Scott." Urban Geography, 11(5), pp. 521–522
Spatial Interaction and Spatial Autocorrelation
A cross-product statistic is used to demonstrate that spatial interaction models are a special case of a general model of spatial autocorrelation. A series of traditional measures of spatial autocorrelation is shown to have a cross-product form. Several interaction models are shown to have a similar form. A general spatial statistic is developed which indicates that the relationship between the two types of models is particularly strong when the …
The Analysis of Spatial Association by Use of Distance Statistics
Introduced in this paper is a family of statistics, G , that can be used as a measure of spatial association in a number of circumstances. The basic statistic is derived, its properties are identified, and its advantages explained. Several of the G statistics make it possible to evaluate the spatial association of a variable within a specified distance of a single point. A comparison is made between a general G statistic and Moran's I for similar…
Introduction
Introduction
Scholarship, Leadership, and Quantitative Methods
This paper explores the supposition that quantitative geography, broadly defined, is the key to the survival of geography as a discipline. Thirteen events of the last 40 years are identified that have laid the groundwork for the success of a number of strong geography departments. These include some of the activities that occurred at the University of Washington, Northwestern University, Bristol University, The University of Iowa, The Ohio State …
Geography (32 obras) · Mathematics (20 obras) · Sociology (18 obras) · Computer Science (17 obras) · Statistics (16 obras) · Spatial and Panel Data Analysis (15 obras) · Economic geography (12 obras) · Regional science (12 obras) · Econometrics (9 obras) · Regional Economics and Spatial Analysis (9 obras)