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2007
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| |  | Li, Hongfei | Beyond Morans I: Testing for Spatial Dependence Based on the Spatial Autoregressive Model read moreAbstract: The statistic known as Moran’s I is widely used to test for the presence of spatial dependence in observations taken on a lattice. Under the null hypothesis that the data are independent and identically distributed normal random variates, the distribution of Moran’s I is known, and hypothesis tests based on this statistic have been shown in the literature to have various optimality properties. Given its simplicity, Moran’s I is also frequently used outside of the formal hypothesis-testing setting in exploratory analyses of spatially referenced data; however, its limitations are not very well understood. To illustrate these limitations, we show that, for data generated according to the spatial autoregressive (SAR) model, Moran’s I is only a good estimator of the SAR model’s spatialdependence parameter when the parameter is close to 0. In this research, we develop an alternative closed-form measure of spatial autocorrelation, which we call APLE, because it is an approximate profile-likelihood estimator (APLE) of the SAR model’s spatialdependence parameter. We show that APLE can be used as a test statistic for, and an estimator of, the strength of spatial autocorrelation. We include both theoretical and simulation-based motivations (including comparison with the maximum-likelihood estimator), for using APLE as an estimator. In conjunction, we propose the APLE scatterplot, an exploratory graphical tool that is analogous to the Moran scatterplot, and we demonstrate that the APLE scatterplot is a better visual tool for assessing the strength of spatial autocorrelation in the data than the Moran scatterplot. In addition, Monte Carlo tests based on both APLE and Moran’s I are introduced and compared. Finally, we include an analysis of the well-known Mercer and Hall wheat-yield data to illustrate the difference between APLE and Moran’s I when they are used in exploratory spatial data analysis. | 2007 |
| |  | Congdon, Peter | Mixtures of spatial and unstructured effects for spatially discontinuous health outcomes read moreAbstract: Mixture models are used for spatially adaptive smoothing of health event data (e.g. mortality or illness totals). Such models allow for spatial pooling of strength where appropriate but adopt a mixture strategy that also reflects health risks that are discordant with those of surrounding areas. Mixing is either discrete or based on beta densities. A fully Bayesian estimation and specification strategy is applied with fit based on DIC and BIC criteria. Illustrative applications are to long term illness in 133 London small areas, where event counts are large, and to lip cancer in Scottish counties where the majority of event totals are under 10. | 2007 |
| |  | Demattei, Christophe | Arbitrarily shaped multiple spatial cluster detection for case event data read moreAbstract: An original method is proposed for spatial cluster detection of case event data. A selection order and the distance from the nearest neighbour are attributed to each point, once pre-selected points have been taken into account. This distance is weighted by the expected distance under the uniform distribution hypothesis. Potential clusters are located by modelling the multiple structural change of the distances on the selection order and the best model (containing one or several potential clusters) is selected using the double maximum test. Finally a p-value is obtained for each potential cluster. With this method multiple clusters of any shape can be detected. | 2007 |
2005
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| |  | Claramunt, C. | A spatial form of diversity read moreAbstract: Sorry no abstract available for this article | 2005 |
2003
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| |  | Snepvangers, J. J. | Soil water content interpolation using spatio-temporal krging with external drift read moreAbstract: Sorry no abstract available for this article | 2003 |
2001
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| |  | Johnston, Kevin | Using ArcGIS Geostatistical Analyst read moreAbstract: Sorry no abstract available for this article | 2001 |
| |  | Webster, Richard | Geostatistics for Environmental Scientists read moreAbstract: Sorry no abstract available for this article | 2001 |
2000
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| |  | Christakos, George | BME analysis of spatiotemporal particulate matter distributions in North Carolina read moreAbstract: Sorry no abstract available for this article | 2000 |
1999
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| |  | Zimmerman, Dale | An Experimental Comparison of Ordinary and Universal Kriging and Inverse Distance Weighting read moreAbstract: Sorry no abstract available for this article | 1999 |
1998
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| |  | zy, Ferenc | GIS functions - interpolation read moreAbstract: Sorry no abstract available for this article | 1998 |
| |  | Christakos, George | Bayesian Maximum Entropy Analysis and Mapping: A Farewell to Kriging Estimators? read moreAbstract: Sorry no abstract available for this article | 1998 |
1997
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| |  | Wentz, Elizabeth A. | Shape Analysis in GIS read moreAbstract: Sorry no abstract available for this article | 1997 |
| |  | Cromley, Robert G. | An Evaluation of Classification Schemes Based on the Statistical Versus the Spatial Structure Properties of Geographic Distributions in Choropleth Mapping read moreAbstract: Sorry no abstract available for this article | 1997 |
| |  | Csillag, Ferko | How Many Regions? Toward a Definition of Regionalization Efficiency read moreAbstract: Sorry no abstract available for this article | 1997 |
| |  | Briggs, David J. | Mapping urban air pollution using GIS: a regression-based approach read moreAbstract: Sorry no abstract available for this article | 1997 |
| |  | Waller, Lance A. | Hierarchical spatio-temporal mapping of disease rates read moreAbstract: Sorry no abstract available for this article | 1997 |
1995
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| |  | Cislaghi, Cesare | Exploratory tools for disease mapping in geographical epidemiology read moreAbstract: Sorry no abstract available for this article | 1995 |
| |  | Hong, Jung-Hong | On the Robustness of Qualitative Distance- and Direction-Reasoning read moreAbstract: Sorry no abstract available for this article | 1995 |
| |  | Jacquez, Geoffrey M. | The map comparison problem: tests for the overlap of geographic boundaries read moreAbstract: Sorry no abstract available for this article | 1995 |
| |  | Jiang, Bin | Visualization Support for Fuzzy Spatial Analysis read moreAbstract: Visualization techniques benefit fuzzy spatial analysis in at least two aspects. One is the field of exploratory analysis, and another is in the representation of uncertainty. This paper discusses the first of the two. Fuzzy spatial analysis may be distinguished from conventional analysis in that the former is a form of concept analysis which is closer to natural language and the latter in most cases refere to numberical processing. Due to the fuzzy nature of the analysis approach, suitable visualization techniques to support the analysis process are highly needed. In this paper, the fundamental of fuzzy spatial analysis are outlined and consecutively, the visualization tools supporting the exploration process are focused on. Finally, an approach towards a complete system framework for exploration is presented using some advanced techniques such as object-oriented system building approach, GUI, and hypertext. | 1995 |
| |  | Schenkelaars, Vincent | Map-Overlay within a Geographic Interaction Language read moreAbstract: Sorry no abstract available for this article | 1995 |
1994
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| |  | Oosterom, Peter | Integrating Complex Spatial Analysis Functions in an Extensible GIS read moreAbstract: Sorry no abstract available for this article | 1994 |
| |  | Moulton, Lawrence H. | Potential pitfalls in interpreting maps of stabilized rates read moreAbstract: Sorry no abstract available for this article | 1994 |
1993
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| |  | Cressie, Noel A. | Statistics for Spatial data read moreAbstract: Sorry no abstract available for this article | 1993 |
| |  | Barreto, Mauricio L. | The dot map as an epidemiological tool: a case study of Schistosoma mansoni infection in an urban setting read moreAbstract: Sorry no abstract available for this article | 1993 |
| |  | Taaffe, Edward J. | Spatial Analysis: Development and Outlook read moreAbstract: Sorry no abstract available for this article | 1993 |
1992
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| |  | Gatrell, Anthony | Spatial Point Process Modelling in a Geographical Information Systems Environment read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | White, Roger | Cellular Dynamic and GIS: Modelling Spatial Complexity read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Getis, Arthur | Some Thoughts on a Situational Data Base read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Macmillan, W. | Optimization Modelling in a GIS Framework: The Problem of Political Redistricting read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Goodchild, Michael | Analysis read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Graf, William L. | Movements, Cycles, and Systems read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Ralston, Bruce A. | Object Oriented Spatial Analysis read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Bailey, Trevor | A Review of Statistical Spatial Analysis in Geographical Information Systems read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | OKelly, Morton E. | Spatial Analysis and GIS: A Position Paper read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Rushton, Gerard | Spatial Models and GIS in Designing and Managing Emergency Response Systems read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Haining, Robert | Designing Spatial Data Analysis Modules for Geographical Information Systems read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Batty, Michael | Urban Models in Graphic and Geographic Information System Environments read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Openshaw, Stan | Two Exporatory Space-Time-Attribute Pattern Analysers Relevant to GIS read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Tobler, Waldo | Global Analysis read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Bracken, Ian | A Surface Model Approach to the Representation of Population-Related Social Indicators read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Ding, Yuemin | The Integration of Spatial Analysis and GIS read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Fischer, Manfred M. | Expert Systems and Artifical Neural Networks for Spatial Analysis and Modelling: Essential Components for Knowledge-Based Geographical Information Systems read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Dubin, Robin A. | Estimating Correlograms: A Monte Carlo Study read moreAbstract: Sorry no abstract available for this article | 1992 |
| |  | Fotheringham, A. S. | Problems in Spatial Analysis from a GIS Perspective read moreAbstract: Sorry no abstract available for this article | 1992 |
1991
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| |  | Besag, Julian | The detection of clusters in rare diseases read moreAbstract: Sorry no abstract available for this article | 1991 |
| |  | Marshall, Roger J. | A review of methods for the statistical analysis of spatial patterns of disease read moreAbstract: Sorry no abstract available for this article | 1991 |
| |  | er, Freda E. | Methods of mapping and identifying small clusters of rare diseases with applications to geographical epidemiology read moreAbstract: Sorry no abstract available for this article | 1991 |
1990
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| |  | Abel, D. J. | A comparative analysis of some two-dimensional orderings read moreAbstract: Sorry no abstract available for this article | 1990 |
| |  | M, reas | Connectionist Models and the Spatial Adaptive Filter read moreAbstract: Sorry no abstract available for this article | 1990 |