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Cover: Implications for Model Validation of Multiresolution, Multiperspective Modeling (MRMPM) and Exploratory Analysis

Implications for Model Validation of Multiresolution, Multiperspective Modeling (MRMPM) and Exploratory Analysis

Published 2003

by James H. Bigelow, Paul K. Davis

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This monograph draws upon a number of the authors' past studies to illustrate with concrete examples how multiresolution, multiperspective modeling (MRMPM) and exploratory analysis relate to model validation when the models are not solidly based in settled theory or empirical testing appropriate to the application in question. It is argued that in such cases, the validation process might reasonably assess a model and its associated databases as "valid for exploratory analysis" or "valid, subject to the principal assumptions underlying the model, for exploratory analysis" for a particular context. A model and its data may not be fully "valid," but they may still be both useful and good in more-limited ways. It is important that a model being assessed be comprehensible and explainable, and that its data deal effectively with uncertainty, possibly massive uncertainty. Crucial enabling capabilities are provided by multiresolution, multiperspective modeling, including use of families of models and games, and exploratory analysis. These methods are valuable for extrapolating, generalizing, and abstracting from small sets of analyses accomplished with detailed models; for top-down planning; and for providing broad, synoptic assessments of problem areas. They are also important for achieving a deep understanding of problems and communicating insights credibly to others.

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The research reported here was sponsored by the United States Air Force. The research was conducted in RAND's Project AIR FORCE.

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