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Articles 1 - 10 of 10
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Why Are Events Important And How To Compute Them In Geospatial Research?, May Yuan
Why Are Events Important And How To Compute Them In Geospatial Research?, May Yuan
Journal of Spatial Information Science
Geospatial research has long centered around objects. While attention to events is growing rapidly, events remain objectified in spatial databases. This paper aims to highlight the importance of events in scientific inquiries and overview general event-based approaches to data modeling and computing. As machine learning algorithms and big data become popular in geospatial research, many studies appear to be the products of convenience with readily adaptable data and codes rather than curiosity. By asking why events are important and how to compute events in geospatial research, the author intends to provoke thinking into the rationale and conceptual basis of event-based …
Movement Analytics For Sustainable Mobility, Harvey J. Miller
Movement Analytics For Sustainable Mobility, Harvey J. Miller
Journal of Spatial Information Science
Mobility is central to urbanity, and urbanity is central to our common future as the world's population crowds into urban areas. This is creating a global urban mobility crisis due to the unsustainability of our 20th century transportation systems for an urban world. Fortunately, the science and planning of urban mobility is transforming away from infrastructure as the solution towards a sustainable mobility paradigm that manages rather than encourages travel, diminishes mobility and accessibility inequities, and reduces the harms of mobility to people and environments. In this essay, I discuss the contributions over the past decade of movement analytics to …
Modeling Movement Probabilities Within Heterogeneous Spatial Fields, Jed A. Long
Modeling Movement Probabilities Within Heterogeneous Spatial Fields, Jed A. Long
Journal of Spatial Information Science
Recent efforts have focused on modeling the internal structure of space-time prisms to estimate the unequal movement opportunities within. This paper further develops this area of research by formulating a model for field-based time geography that can be used to probabilistically model movement opportunities conditioned on underlying heterogeneous spatial fields. The development of field-based time geography draws heavily on well-established methods for cost-distance analysis, common to most GIS software packages. The field-based time geographic model is compared with two alternative approaches that are commonly employed to estimate probabilistic space-time prisms - (truncated) Brownian bridges and time geographic kernel density estimation. …
Quantifying Space, Understanding Minds: A Visual Summary Approach, Mark Simpson, Kai-Florian Richter, Jan Oliver Wallgrün, Alexander Klippel
Quantifying Space, Understanding Minds: A Visual Summary Approach, Mark Simpson, Kai-Florian Richter, Jan Oliver Wallgrün, Alexander Klippel
Journal of Spatial Information Science
This paper presents an illustrated, validated taxonomy of research that compares spatial measures to human behavior. Spatial measures quantify the spatial characteristics of environments, such as the centrality of intersections in a street network or the accessibility of a room in a building from all the other rooms. While spatial measures have been of interest to spatial sciences, they are also of importance in the behavioral sciences for use in modeling human behavior. A high correlation between values for spatial measures and specific behaviors can provide insights into an environment's legibility, and contribute to a deeper understanding of human spatial …
Mapping Neighborhood Scale Survey Responses With Uncertainty Metrics, Charles R. Ehlschlaeger, Yizhao Gao, James D. Westervelt, Robert C. Lozar, Marina V. Drigo, Jeffrey A. Burkhalter, Carey L. Baxter, Matthew D. Hiett, Natalie R. Myers, Ellen R. Hartman
Mapping Neighborhood Scale Survey Responses With Uncertainty Metrics, Charles R. Ehlschlaeger, Yizhao Gao, James D. Westervelt, Robert C. Lozar, Marina V. Drigo, Jeffrey A. Burkhalter, Carey L. Baxter, Matthew D. Hiett, Natalie R. Myers, Ellen R. Hartman
Journal of Spatial Information Science
This paper presents a methodology of mapping population-centric social, infrastructural, and environmental metrics at neighborhood scale. This methodology extends traditional survey analysis methods to create cartographic products useful in agent-based modeling and geographic information analysis. It utilizes and synthesizes survey microdata, sub-upazila attributes, land use information, and ground truth locations of attributes to create neighborhood scale multi-attribute maps. Monte Carlo methods are employed to combine any number of survey responses to stochastically weight survey cases and to simulate survey cases' locations in a study area. Through such Monte Carlo methods, known errors from each of the input sources can be …
Invariant Spatial Information In Sketch Maps — A Study Of Survey Sketch Maps Of Urban Areas, Jia Wang, Angela Schwering
Invariant Spatial Information In Sketch Maps — A Study Of Survey Sketch Maps Of Urban Areas, Jia Wang, Angela Schwering
Journal of Spatial Information Science
It is commonly recognized that free-hand sketch maps are influenced by cognitive impacts and therefore sketch maps are incomplete, distorted, and schematized. This makes it difficult to achieve a one-to-one alignment between a sketch map and its corresponding geo-referenced metric map. Nevertheless, sketch maps are still useful to communicate spatial knowledge, indicating that sketch maps contain certain spatial information that is robust to cognitive impacts. In existing studies, sketch maps are used frequently to measure cognitive maps. However, little work has been done on invariant spatial information in sketch maps, which is the information of spatial configurations representing correctly the …
A Comparative Study Of Linear And Region Based Diagrams, Björn Gottfried
A Comparative Study Of Linear And Region Based Diagrams, Björn Gottfried
Journal of Spatial Information Science
There are two categories of objects spatial information science investigates: actual objects and their spatial properties, such as in geography, and abstract objects which are employed metaphorically, as for visual languages. A prominent example of the latter are diagrams that model knowledge of some domain. Different aspects of diagrams are of interest, including their formal properties or how human users work with them, for example, with diagrams representing sets. The literature about diagrammatic systems for the representation of sets shows a dominance of region-based diagrams like Euler circles and Venn diagrams. The effectiveness of these diagrams, however, is limited because …
Interactive Maps: What We Know And What We Need To Know, Robert E. Roth
Interactive Maps: What We Know And What We Need To Know, Robert E. Roth
Journal of Spatial Information Science
This article provides a review of the current state of science regarding cartographic interaction a complement to the traditional focus within cartography on cartographic representation. Cartographic interaction is defined as the dialog between a human and map mediated through a computing device and is essential to the research into interactive cartography geovisualization and geovisual analytics. The review is structured around six fundamental questions facing a science of cartographic interaction: (1) what is cartographic interaction (e.g. digital versus analog interactions interaction versus interfaces stages of interaction interactive maps versus mapping systems versus map mash-ups); (2) why provide cartographic interaction (e.g. visual …
A Wayfinding Aid To Increase Navigator Independence, Wilfred Waters, Stephan Winter
A Wayfinding Aid To Increase Navigator Independence, Wilfred Waters, Stephan Winter
Journal of Spatial Information Science
Wayfinding aids are of great benefit because users do not have to rely on their learned geographic knowledge or orientation skills alone for successful navigation. Additionally cognitive resources usually captured by this activity can be spent elsewhere. A challenge however remains for wayfinding aid developers. Due to the automation of wayfinding aids navigator independence may be decreasing via the use of these aids. In order to address this wayfinding aids might be improved additionally to perform a training role. Since the most versatile wayfinders appear to deploy a dual strategy for geographic orientation it is proposed that wayfinding aids be …
Spatial Behavior And Linguistic Representation: Collaborative Interdisciplinary Specialized Workshop, Thora Tenbrink, Jan Wiener, Christophe Claramunt, Marios Avraamides, Rainer Malaka, Hanspeter A. Mallot
Spatial Behavior And Linguistic Representation: Collaborative Interdisciplinary Specialized Workshop, Thora Tenbrink, Jan Wiener, Christophe Claramunt, Marios Avraamides, Rainer Malaka, Hanspeter A. Mallot
Journal of Spatial Information Science
The Collaborative Interdisciplinary Specialized Workshop on Spatial Behavior and Linguistic Representation took place on April 23–24, 2010, at the Hanse-Wissenschaftskolleg, Institute for Advanced Study (HWK), in Delmenhorst, Germany. We report the scientific motivation for this workshop and report its outcomes together with the impact of a gathering of this kind for the scientific community.