Antônio Carlos da Rocha Costa – författare
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This book introduces exchange process-driven social networks as a foundation for the core operational structures of the particular type of multi-agent systems we call agent societies. The core operational structures of agent societies encompass, in hierarchies of exchange process-driven social networks, all the behaviors and interactions that organizational actors (social roles, organizational units and social subsystems) perform in those societies, as well as the behaviors and interactions of the regulation and structuration mechanisms operating in those core operational structures. The variational basis of the overall framework, introduced in the book, allows for the systematic explanation of the regulation and structuration processes of core operational structures of agent societies, from the populational and micro-organizational to the macro-organizational level.
This book shall be useful to people developing computational applications based on the concept of agent societies and for those applying the concept of agent societies to the formal modeling and simulation of human and animal societies1 678 kr
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This book is about methodological aspects of uncertainty propagation in data processing. Uncertainty propagation is an important problem: while computer algorithms efficiently process data related to many aspects of their lives, most of these algorithms implicitly assume that the numbers they process are exact. In reality, these numbers come from measurements, and measurements are never 100% exact. Because of this, it makes no sense to translate 61 kg into pounds and get the result—as computers do—with 13 digit accuracy.
In many cases—e.g., in celestial mechanics—the state of a system can be described by a few numbers: the values of the corresponding physical quantities. In such cases, for each of these quantities, we know (at least) the upper bound on the measurement error. This bound is either provided by the manufacturer of the measuring instrument—or is estimated by the user who calibrates this instrument. However, in many other cases, the description of the system is more complex than a few numbers: we need a function to describe a physical field (e.g., electromagnetic field); we need a vector in Hilbert space to describe a quantum state; we need a pseudo-Riemannian space to describe the physical space-time, etc.
To describe and process uncertainty in all such cases, this book proposes a general methodology—a methodology that includes intervals as a particular case. The book is recommended to students and researchers interested in challenging aspects of uncertainty analysis and to practitioners who need to handle uncertainty in such unusual situations.
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