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An expert system is computer software that solves real world problems using human knowledge and reasoning skills. Knowledge base is the heart and mind of such system where knowledge is stored in the form of rules, databases, heuristics and facts. The key conceptual challenge in this approach is the exploitation of the domain knowledge that is vast and mainly in the minds of experts and is a major...
Sem@ntica is a system for extracting the information contained in collections of documents into a knowledge base. It combines high quality conventional named entity analysis with an ontology class labeling capability for open class words. The ontology comprises an upper ontology and one or more domain ontologies. The system has tools for rapidly designing the ontology and mapping segments of Word...
This article represents those basic conditions which must exist for such systems to be classified as "expert systems". Our goal is oriented towards construction elements for an expert system; where we need to give a detailed description of each constructed part. If we want to construct an expert system, we must learn certain basic steps, which are very important during the design phase....
The issue of knowledge sharing has permeated the field of distributed AI and, in particular, its successor, multiagent systems. Through the years, many research and engineering efforts have tackled the problem of encoding and sharing knowledge without the need for a single, centralized knowledge base. The proposed solutions to this problem are based, more or less, on stringent assumptions, such as...
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