Artificial Intelligence, Volume 42

Volume 42, Number 1, 1 February 1990

• William J. Clancey, Elliot Soloway: Artificial Intelligence and Learning Environments - Preface. 1-6
• John R. Anderson, C. Franklin Boyle, Albert T. Corbett, Matthew W. Lewis: Cognitive Modeling and Intelligent Tutoring. 7-49
• W. Lewis Johnson: Understanding and Debugging Novice Programs. 51-97
• Barbara White, John Frederiksen: Causal Model Progressions as a Foundation for Intelligent Learning Environments. 99-157

Volume 42, Number 2-3, 1 March 1990

• Antony Galton: A Critical Examination of Allen's Theory of Action and Time. 159-188
• Richard E. Korf: Real-Time Heuristic Search. 189-211
• Philip R. Cohen, Hector J. Levesque: Intention is Choice with Commitment. 213-261
• Hector J. Levesque: All I Know: A Study in Autoepistemic Logic. 263-309
• John F. Horty, Richmond H. Thomason, David S. Touretzky: A Skeptical Theory of Inheritance in Nonmonotonic Semantic Networks. 311-348
• Elisha Sacks: A Dynamic Systems Perspective on Qualitative Simulation. 349-362
• Steven Minton: Quantitative Results Concerning the Utility of Explanation-based Learning. 363-391

• Gregory F. Cooper: The Computational Complexity of Probabilistic Inference Using Bayesian Belief Networks. 393-405