In this paper we describe the architecture and working of a recently implemented knowledge-based GIS (KBGIS-II) that was designed to satisfy several general criteria for GIS. The system has four major functions that include queryanswering, learning and editing. The main query finds constrained locations for spatial objects that are describable in a predicate-calculus based spatial object langua...

Most of the infrastructures planning problems like facility location, allocation of resources, and path planning are based on the network topology created from maps with spatial and non-spatial attributes. The problem is where do you locate new facilities? In this example, the facility can be on any node i.e. at any road junction. It is also possible to locate a facility in the middle of the ro...

This contribution analyses the behavior of two kinds of multiprocessor multidisk storage server architectures for a data-intensive application, namely for spatial queries in geographical information systems (GIS). The two kinds of servers are:: (1) a workstation cluster architecture with multiple processors, multiple disks, and a shared-bus shared-memory architecture ; (2) a distributed-memory ...