GIS
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we consider the following scenario: a set of mobile objects continuously track their positions in a road network and are able to communicate with a central server. ...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
It has been pointed out repeatedly that spatial operations must be extended to include support for 3D and moving objects. The attempt to code by hand each spatial operation for ea...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we discuss an application of spatial data mining to predict pedestrian flow in extensive road networks using a large biased sample. Existing out-of-the-box techniqu...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
Wireless sensor networks (WSNs) can provide real-time information about geospatial environments, and so have the potential to play an important role in the monitoring of geographi...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we describe a methodology to estimate the geographic coverage of the web without the need for secondary knowledge or complex geo-tagging. This is achieved by random...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
An index is devised to support position-independent search for images containing quartets of icons. Point quartets exist that do not unambiguously map to quadrilaterals, however, ...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
In order to deal with inconsistent databases, a repair semantics defines a set of admissible database instances that restore consistency, while staying close to the original insta...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
d Abstract] K. Buchin Dept. Computer Science Utrecht University The Netherlands buchin@cs.uu.nl M. Buchin Dept. Computer Science Utrecht University The Netherlands maike@cs.uu.nl ...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
Network data models are widely used to describe the connectivity between spatial features in GIS architectures. Recent applications demand that such models are editable in multius...