Making Transparent Environmental Management Decisions: by Keith M. Reynolds, Paul F. Hessburg, Patrick S. Bourgeron
By Keith M. Reynolds, Paul F. Hessburg, Patrick S. Bourgeron
Since 1997, the atmosphere administration selection help (EMDS) procedure has been used worldwide to help environmental research and making plans in lots of diversified software parts, and it's been utilized over quite a lot of geographic scales, from woodland stands to whole nations. an intensive sampling of this range of functions is gifted in part 2, within which EMDS program builders describe the numerous makes use of of the method. those debts, including the considered necessary heritage in part 1, offer helpful functional insights into how the method could be utilized within the basic area of environmental management.
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Additional resources for Making Transparent Environmental Management Decisions: Applications of the Ecosystem Management Decision Support System
Each of the data items is evaluated relative to the degree to which it satisfies its arguments. The network can be read as a rule as follows: ‘‘IF Data 1 satisfies the argument Data 1 arg. AND Data 2 satisfies the argument Data 2 arg. OR Data 3 satisfies the argument Data 3 arg. ’’ The degree to which the assertion is true is a function of the degree(s) to which the individual data satisfy their arguments and the types and arrangements of the logical nodes used within the network NetWeaver allows simple or calculated data links to take fuzzy arguments to determine a data value’s membership in a fuzzy set.
Unless it is an unusually simple knowledgebase, there will usually be at least one or two levels of antecedents before a chain of dependencies terminates in a data link. In a completed knowledgebase, you will normally want to be sure that each chain of dependencies terminates in a data link. However, while a knowledgebase is under development, it is always possible to evaluate a network object, regardless of how complete the network structure is. As a knowledgebase structure evolves, you will probably find occasion to use existing antecedents (both dependency networks and data links).
Miller 4 Evolving Knowledgebases NetWeaver is a rigorous, object-oriented, knowledgebase development system. One of the more practical implications of object-oriented knowledgebases is that it is very easy to start with simple knowledge representations and gradually to evolve them into large, complex systems because they are extremely modular. A basic modeling principle that has motivated development and application of objectoriented technology, in general, is well captured by Gall (1978): A complex system that works is invariably found to have evolved from a simple system that worked… A complex system designed from scratch never works and cannot be patched up to make it work.