Table of Contents
Letters
| Letters to the Editor | |
| John Sotos, Daniel G. Bobrow, David J. Steele, Peter F. Patel-Schneider, Bruce Boyer, Stanley Letovsky | 7 |
Articles
| Big Problems for Artificial Intelligence | |
| Jon Doyle | 19 |
| Real-Time Knowledge-Based Systems | |
| Thomas J. Laffey, Preston A. Cox, James L. Schmidt, Simon M. Kao, Jackson Y. Readk | 27 |
| Approximate Processing in Real-Time Problem Solving | |
| Victor R. Lesser, Jasmina Pavlin, Edmund Durfee | 49 |
| What AI Practitioners Should Know about the Law Part One | |
| Steven J. Frank | 63 |
| New Mexico State University's Computing Research Laboratory | |
| Yorick Wilks, Rebecca Gomez | 79 |
| VT: An Expert Elevator Designer That Uses Knowledge-Based Backtracking | |
| Sandra Marcus, Jeffrey Stout, John McDermott | 95 |
Reports
| Concurrent Logic Programming, Metaprogramming, and Open Systems | |
| Kenneth M. Kahn | 115 |
| Natural Language Understanding and Logic Programming | |
| Patrick Saint-Dizier | 119 |
Book Reviews
| Review of Expert Systems: Techniques, Tools, and Applications | |
| Bryan M. Kramer | 123 |
| Review of The Principles and Applications of Decision Analysis and Behavioral Research | |
| Jack Breese | 124 |
Departments
| AAAI News | |
| AAAI | 135 |
| Contributors | |
| AAAI | 17 |
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