Virtual Kyoto: 4DGIS Comprising Spatial and Temporal Dimensions

Neighborhood Poverty and Nonmarital Fertility: Spatial and Temporal Dimensions.

Data from 4,855 respondents to the Panel Study of Income Dynamics were used to examine spatial and temporal dimensions of the effect of neighborhood poverty on teenage premarital childbearing. Although high poverty in the immediate neighborhood increased the risk of becoming an unmarried parent, high poverty in surrounding neighborhoods reduced this risk. The effect of local neighborhood povert...

Spatial and Temporal Dimensions of Heterogeneity in Founding Patterns

Temporal Dependencies Generalized for Spatial and Other Dimensions

Recently, there has been a lot of interest in temporal gran-ularity, and its applications in temporal dependency theory and data mining. Generalization hierarchies used in multi-dimensional databases and OLAP serve a role similar to that of time granularity in temporal databases, but they also apply to non-temporal dimensions, like space. In this paper, we rst generalize temporal functional dep...

Virtual Environments with Four or More Spatial Dimensions

We describe methods for displaying complex, texture-mapped environments with four or more spatial dimensions that allow for realtime interaction. At any one moment in time, a threedimensional (3D) cross-section of the high-dimensional environment is rendered using techniques that have been implemented in OpenGL. The position and orientation of the user within the environment determine the 3D cr...

Extending Spatial Hot Spot Detection Techniques to Temporal Dimensions

This paper presents how hot spot detection methods can be extended to allow for temporal dimensions. Major concerns are how temporal dimension is incorporated into the framework of point pattern analysis, while maintaining the capability of multi-scale analysis. The study elaborates on expanding the scope of (space) K function in order to count time in the analysis. With the explicit treatment ...