Tool Name *

Netica

Category *

Decision support:

What step(s) in framework *

2a. Ecosystem Components
2b. Pressures and Impacts
2c. Management Measures

Description *

Netica is a powerful, easy-to-use, complete program for working with belief networks and influence diagrams. It has an intuitive and smooth user interface for drawing the networks, and the relationships between variables may be entered as individual probabilities, in the form of equations, or learned from data files (which may be in ordinary tab-delimited form and have "missing data").

Belief networks (also known as Bayesian networks, Bayes networks and causal probabilistic networks), provide a method to represent relationships between propositions or variables, even if the relationships involve uncertainty, unpredictability or imprecision. They may be learned automatically from data files, created by an expert, or developed by a combination of the two. They capture knowledge in a modular form that can be transported from one situation to another; it is a form people can understand, and which allows a clear visualization of the relationships involved.

Inputs

Equations or data files (which may be in ordinary tab-delimited form and have "missing data")

Data Quality Required

Modification Required

Not available

Expertise Required

Not available

Outputs

Visualized networks

Spatial and Temporal Scales

Not available

Licence Cost Issues

Yes: Demo version is free, has full features but limited in model-size

Download

http://www.norsys.com/netica.html

Literature: References & Manuals *

http://www.norsys.com/netica.html

EVALUATION

Thumbnail

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JPEG File Netica.jpg 16-08-2013 by Myra van der Meulen

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