A Structure of Semantic Service in a Distributed Knowledge Based System
Nataliia A. Kulykovska, Артур Тіменко · 2019
The main difference in distributed systems based on knowledge is the use of the service approach and ontologies in knowledge engineering.Semantic service acts as a software agent that regulates the interaction of all components of the system.Semantic service provides: semantic principle, which defines a formal description of information and allows you to define the following characteristics of services: scalability, semantic interoperability, formal models of services and ontologies; the principle of decision making; the principle of distribution, which allows you to aggregate the capabilities of several computing objects through cooperation.The communication and collaboration mechanism of the distributed systems based on knowledge covers the message transfer between services, information exchange between semantic service and distributed knowledge bases, and the semantic service behaviors in the entire process from request submission, request handle, to result return.The knowledge base is formed from three types of ontologies.The rules for recognizing performance problems are converted into ontology and the system knowledge base is placed.The working memory of a semantic service contains facts that correspond to simple events, composite events, and identified problems and recommendations.The algorithm for using semantic service is discussed in the article.To assess the performance of the SS attached, create an information system of two components: event trace generator and event trace analyzer.