Table of Contents
Letters
| Letters to the Editor | |
| Brian G. Milnes, Willliam Mettrey, Subhash C. Kak, Bruce David, Costas Tsatsoulis, Fred Kline | 7 |
Editorials
| About this Issue | |
| Robert S. Engelmore | 2 |
| Spatial Reasoning (Editorial) | |
| Avi Kak | 23 |
Articles
| Navigation and Mapping in Large Scale Space | |
| Benjamin J. Kuipers, Todd S. Levitt | 25 |
| A Framework for Representing and Reasoning about Three-Dimensional Objects for Visione | |
| Ellen Lowenfeld Walker, Takeo Kanade, Martin Herman | 47 |
| Sensor Fusion in Certainty Grids for Mobile Robots | |
| Hans P. Moravec | 61 |
| Evidence Accumulation and Flow of Control in a Hierarchical Spatial Reasoning System | |
| K. M. Andress, Avi Kak | 75 |
| Various Views on Spatial Prepositions | |
| Gudula Retz-Schmidt | 95 |
| What AI Pratitioners Should Know about the Law Part Two | |
| Steven J. Frank | 109 |
Reports
| DARPA Santa Cruz Workshop on Planning | |
| William R. Swartout | 115 |
Columns
| New Hitech Computer Chess Success | |
| Hans J. Berliner | 133 |
Book Reviews
| Review of Three-Dimensional Computer Vision | |
| Oscar Firschein | 135 |
Departments
| Contributors | |
| AAAI | 19 |
| AAAI News | |
| AAAI | 141 |
| Index to Volume Eight | |
| AAAI | 173 |
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