Titlebook: Qualitative Simulation Modeling and Analysis; Paul A. Fishwick,Paul A. Luker Book 1991 Springer-Verlag New York, Inc. 1991 Digraph.Dynamic

辯論

加劇

Qualitative Modeling Using Natural Language: An Application in System Dynamics,representing systems that is language independent and computationally efficient is developed. This methodology was used to build a prototype system, NATSIM. The design of NATSIM is described and the functionality of the system is demonstrated within the context of the production-distribution domain.

phytochemicals

fallible

Natural Language, Cognitive Models, and Simulation,ptions of model behavior. This work can be applied in the process of software engineering as natural language specifications are transformed into models, or model results are interpreted and reported by natural language generators. Furthermore, models of various kinds are necessary in systems that use language.

護(hù)身符

Invariance and Nominal Value Mapping as Key Themes for Qualitative Simulation, and output) and nominal value mapping are seen as central concepts (or “themes”) to the variety of qualitative methods that currently exist in simulation. Thus, our purpose is to try to help unify the study of qualitative methods by relating them to each other using the key themes. In our work we h

連鎖

Aspects of Uncertainty in Qualitative Systems Modeling,rease of credibility of systems models. Principles of maximum and minimum uncertainty are introduced as fundamental to problems involving ampliative reasoning and problems of systems simplification, respectively. Novel mathematical theories for dealing with uncertainty and measures of relevant types

弓箭

General System Problem Solving Paradigm for Qualitative Modeling,e principles of “naive physics” as the commonsense reasoning does, but rather implements a sort of pattern-recognition mechanism. The basic differences between . and . are explained. It is shown under which conditions either of the two approaches may be more successful than the other.

PALSY

火海

Gerontology

Qualitative Modeling in Ecology: Loop Analysis, Signed Digraphs, and Time Averaging,teractions, and qualitative models reduce the number of measurements. Qualitative models in ecology have taken the form of signed-digraphs or loop models. These assume that ecological systems are at or near equilibrium. For biotic systems far from equilibrium, the method of time averaging has been d