Authors:
            
                    Po-Chun Chen
                    
                        
                    
                    ; 
                
                    Guruprasad Airy
                    
                        
                    
                    ; 
                
                    Prasenjit Mitra
                    
                        
                    
                     and
                
                    John Yen
                    
                        
                    
                    
                
        
        
            Affiliation:
            
                    
                        
                    
                    The Pennsylvania State University, United States
                
        
        
        
        
        
             Keyword(s):
            Knowledge base, Rule-based system, Semantic web, Agent.
        
        
            
                Related
                    Ontology
                    Subjects/Areas/Topics:
                
                        Agents
                    ; 
                        Artificial Intelligence
                    ; 
                        Artificial Intelligence and Decision Support Systems
                    ; 
                        Databases and Information Systems Integration
                    ; 
                        Enterprise Information Systems
                    ; 
                        Informatics in Control, Automation and Robotics
                    ; 
                        Intelligent Control Systems and Optimization
                    ; 
                        Knowledge Engineering
                    ; 
                        Knowledge Engineering and Ontology Development
                    ; 
                        Knowledge-Based Systems
                    ; 
                        Knowledge-Based Systems Applications
                    ; 
                        Legacy Systems
                    ; 
                        Software Engineering
                    ; 
                        Symbolic Systems
                    
            
        
        
            
                Abstract: 
                Knowledge bases with inference capabilities play a significant role in an intelligent agent system. Towards the vision of the semantic Web, the compatibility of knowledge representation is critically important. However, a legacy system that was developed without this consideration would have compatibility gaps between its own knowledge representation and the semantic Web standards. In order to solve this problem, we present a systematical approach to extend a legacy agent knowledge base to be able to handle and reason information encoded in standard semantic Web languages. The algorithms presented in this paper are applicable to compatible rule-based systems, and the methodology can be applied to other knowledge systems.