Compositional modeling: finding the right model for the job
Artificial Intelligence - Special issue: Qualitative reasoning about physical systems II
Reasoning about nonlinear system identification
Artificial Intelligence
Inducing Process Models from Continuous Data
ICML '02 Proceedings of the Nineteenth International Conference on Machine Learning
Enhancing the Plausibility of Law Equation Discovery
ICML '00 Proceedings of the Seventeenth International Conference on Machine Learning
Inducing hierarchical process models in dynamic domains
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 2
Automated discovery in a chemistry laboratory
AAAI'90 Proceedings of the eighth National conference on Artificial intelligence - Volume 2
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In this paper, we review the task of inductive process modeling, which uses domain knowledge to compose explanatory models of continuous dynamic systems. Next we discuss approaches to learning with missing values in time series, noting that these efforts are typically applied for descriptive modeling tasks that use little background knowledge. We also point out that these methods assume that data are missing at random—a condition that may not hold in scientific domains. Using experiments with synthetic and natural data, we compare an expectation maximization approach with one that simply ignores the missing data. Results indicate that expectation maximization leads to more accurate models in most cases, even though its basic assumptions are unmet. We conclude by discussing the implications of our findings along with directions for future work.