Abstract
Controlling search for implicitly encoded complex spatial objects is a major task in the design and implementation of large-scale spatial information systems. In the current paper, the search control system of a recently-implemented knowledge-based GIS is examined in detail. The strategy used in this system is based upon recursive calls in a three level structure that involves high level constraint-satisfaction procedures, medium-level, 'blackboard' procedures and low-level quadtree search proceedings. The strategy also involves hierarchical, recursive and knowledge-based procedures to control search. -Authors
Original language | English (US) |
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Pages (from-to) | 439-452 |
Number of pages | 14 |
Journal | Unknown Journal |
State | Published - 1985 |
All Science Journal Classification (ASJC) codes
- General Environmental Science
- General Earth and Planetary Sciences