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On-line Seismic Risk Assessment (Italy)





Expert Systems


In the fields of artificial intelligence and expert systems GEODECO’s personnel have designed and implemented expert systems for geotechnical characterization, foundation analysis, and design.

Expert Systems are computer programs, which solve problems by modelling the reasoning scheme of human experts.

They are particularly suited to provide solutions for:

  • non-structured problems;

  • problems associated with multiple solutions;

  • problems based on large amounts of data;

  • qualitative and incomplete problems;

  • problems whose solutions involve chains of reasoning.

Among other fields, expert systems have been applied as useful tools in fields from engineering and decision making to classification problems such as interpretation, diagnosis and monitoring as well as generative problems such as planning and design.


Example:

Expert System for Geological and Geotechnical Characterization

A geological site characterization module has been developed in order to infer the most likely soil properties at each location of a vaster territorial grid based on the available information. The system treats the input data in a consistent manner via pre-defined and transparent rules.  Depending on such information geological or geotechnical criteria are used.  If the data is scarce (e.g., geologic maps only), the rules define different possible alternative soil column configurations and assign a weight to each of them.



The system is used provides the necessary dynamic soil characterization in order to perform soil amplification studies on vaste geographical areas. It is possible by means of this tool to characterize entire regions and produce soil amplification maps.

A full GIS system is integrated and queried for every grid point where the characterization needs to be performed.  The GIS contains the geological description of the soil formation to be used by the system when detailed geotechnical information is not available.






A practical user interface shows to the user to follow every step performed by the system.










For more information on Geodeco's information technology projects please contact Mauro Mangini, M.S.










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