Table of Contents
Letters
| Letters to the Editor | |
| Michael J. Pazzani, Robert Neches | 8 |
Editorials
| Out of My Mind: An Editorial | |
| Robert S. Engelmore | 6 |
Articles
| Where's the AI? | |
| Roger C. Schank | 38 |
| Bayesian Networks without Tears. | |
| Eugene Charniak | 50 |
| Decision Analysis and Expert Systems | |
| Max Henrion, John S. Breese, Eric J. Horvitz | 64 |
Reports
| Machine Discovery of Chemical Reaction Pathways | |
| Raul E. Valdes-Perez | 11 |
| Principles of Diagnosis: Current Trends and a Report on the First International Workshop | |
| Walter Hamscher | 15 |
| AAAI-90 Workshop on Qualitative Vision | |
| William Lim, Philip Kahn, Daphna Weinshall, Andrew Blake | 25 |
| AAAI 1991 Spring Symposium Series Reports | |
| AAAI | 31 |
Book Reviews
| Intentions in Communication: A Review | |
| Robert P. Goldman | 90 |
| On Being a Machine: A Review | |
| Gabriel Valiente | 96 |
| The Cognitive Structure of Emotions: A Review | |
| Roland J. Zito-Wolf | 97 |
Departments
| Mobile Robot Competition and Exhibition | |
| R. Peter Bonasso | 4 |
| AAAI News | |
| AAAI | 9 |
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