Transactions in GIS
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Spatial Prediction of Landslide Hazard Using Logistic Regression and ROC Analysis
Transactions in GIS - Tập 10 Số 3 - Trang 395-415 - 2006
Spatial Prediction of Landslide Hazard Using Fuzzy k-means and Dempster-Shafer Theory
Transactions in GIS - Tập 9 Số 4 - Trang 455-474 - 2005
The Effect of DEM Raster Resolution on First Order, Second Order and Compound Terrain DerivativesAbstract It is well known that the grid cell size of a raster digital elevation model has significant effects on derived terrain variables such as slope, aspect, plan and profile curvature or the wetness index. In this paper the quality of DEMs derived from the interpolation of photogrammetrically derived elevation points in Alberta, Canada, is tested. DEMs with gri... ... hiện toàn bộ
Transactions in GIS - Tập 8 Số 1 - Trang 83-111 - 2004
Toward Optimal Calibration of the SLEUTH Land Use Change ModelAbstract SLEUTH is a computational simulation model that uses adaptive cellular automata to simulate the way cities grow and change their surrounding land uses. It has long been known that models are of most value when calibrated, and that using back‐casting (testing against known prior data) is an effective calibration method. SLEUTH's calibration uses the brute fo... ... hiện toàn bộ
Transactions in GIS - Tập 11 Số 1 - Trang 29-45 - 2007
Spatial Differences in Multi‐Resolution Urban Automata ModelingAbstract The last decade has seen a renaissance in spatial modeling. Increased computational power and the greater availability of spatial data have aided in the creation of new modeling techniques for studying and predicting the growth of cities and urban areas. Cellular automata is one modeling technique that has become widely used and cited in the literature; yet... ... hiện toàn bộ
Transactions in GIS - Tập 8 Số 4 - Trang 479-492 - 2004
Understanding the interplay between bus, metro, and cab ridership dynamics in Shenzhen, ChinaAbstract The most common mass transit modes in metropolitan cities include buses, subways, and taxicabs, each of which contribute to an interconnected complex network that delivers urban dwellers to their destinations. Understanding the intertwined usages of these three transit modes at different places and time allows for better sensing of urban mobility and the bu... ... hiện toàn bộ
Transactions in GIS - Tập 22 Số 3 - Trang 855-871 - 2018
The Geography, Structure, and Evolution of the GIS Research Community in the US: A Network Analysis from 1992 to 2011Abstract The research community of G eographic I nformation S ystems and Science (GIS ) has been growing rapidly during the ... ... hiện toàn bộ
Transactions in GIS - Tập 18 Số 5 - Trang 704-717 - 2014
Quality Assessment of the French OpenStreetMap DatasetAbstract The concept of Volunteered Geographic Information (VGI) has recently emerged from the new Web 2.0 technologies. The OpenStreetMap project is currently the most significant example of a system based on VGI. It aims at producing free vector geographic databases using contributions from Internet users. Spatial data quality becomes a key consideration in this c... ... hiện toàn bộ
Transactions in GIS - Tập 14 Số 4 - Trang 435-459 - 2010
Supporting Accessibility for Blind and Vision‐impaired People With a Localized Gazetteer and Open Source GeotechnologyAbstract Disabled people, especially the blind and vision‐impaired, are challenged by many transitory hazards in urban environments such as construction barricades, temporary fencing across walkways, and obstacles along curbs. These hazards present a problem for navigation, because they typically appear in an unplanned manner and are seldom included in databases use... ... hiện toàn bộ
Transactions in GIS - Tập 16 Số 2 - Trang 177-190 - 2012
A Characteristic‐Hull Based Method for Home Range EstimationAbstract Recent literature has reported inaccuracies associated with some popular home range estimators such as kernel density estimation, especially when applied to point patterns of complex shapes. This study explores the use of characteristic hull polygons (CHPs) as a new method of home range estimation. CHPs are special bounding polygons created in GIS that can ... ... hiện toàn bộ
Transactions in GIS - Tập 13 Số 5-6 - Trang 527-537 - 2009
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