This book covers the underlying science and application issues related to aggregation operators, focusing on tools used in practical applications that involve numerical information. Starting with detailed introductions to information fusion and integration, measurement and probability theory, fuzzy sets, and functional equations, the authors then cover the following topics in detail: synthesis of judgments, fuzzy measures, weighted means and fuzzy integrals, indices and evaluation methods, model selection, and parameter extraction. The methods are illustrated with representative examples throughout, and there are extensive bibliographies and reading suggestions.

Inhalt
Basic Notions.- to Functional Equations.- Synthesis of Judgements.- Fuzzy Measures.- From the Weighted Mean to Fuzzy Integrals.- Indices and Evaluation Methods.- Selection of the Model.