GIS
2010
ACM
13 years 3 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
Rensselaer Polytechnic Institute Troy, NY Levee overtopping can lead to failure and cause catastrophic damage, as was the case during Hurricane Katrina. We present a computer simu...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
GIS
2010
ACM
13 years 3 months ago
2010
ACM
The problem of point-to-point shortest path computation in spatial networks is extensively studied with many approaches proposed to speed-up the computation. Most of the existing ...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
We provide an algorithm that can construct a valid moving region from snapshots of a region in time. Our algorithm is robust in the sense that given valid input regions, the gener...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
The quality of a local search engine, such as Google and Bing Maps, heavily relies on its geographic datasets. Typically, these datasets are obtained from multiple sources, e.g., ...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
Top-k queries are a popular type of query in Wireless Sensor Networks. Typical solutions rely on coordinated root-tonodes and nodes-to-root messages and on maintaining filters at...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
Bare Earth gridded digital elevation models (DEMs) are often used to extract hydrologic features such as rivers and watersheds. DEMs must be conditioned by removing spurious sinks...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
We present Ontuition, a system for mapping ontologies. Transforming data to a usable format for Ontuition involves recognizing and resolving data values corresponding to concepts ...
GIS
2010
ACM
13 years 3 months ago
2010
ACM
It is cost-effective for data owners to publicize their spatial databases via database outsourcing; however, data privacy and query integrity are major challenges. In this demonst...