Research On Ontology Construction And Inquiry Reasoning Of Historical Character

Information retrieval and conversation systems have been extensively studied and applied,such as Baidu,Google,session systems wheatgrass and Siri,and automated answering systems in the service industry.With the development of intelligent tourism,more and more people hope to obtain more detailed and accurate travel cultural information from the retrieval system or question answering system.There are some researches on the aspects of intelligent tourism and information retrieval in history and culture,character relation reasoning,information inquiry,such as character ontology of "the Three Kingdoms" and tourism information system.However,historical relationship reasoning and inquiry also need studying deeply.Historical figures,as the inheritors of culture,their special character traits and supernormal relaions pose difficulties to the information querying and reasoning.The acquisition of relevant knowledge and knowledge representation and reasoning are the keys to the construction of historical figures ontology.This paper uses description logic to formalize the character ontology,portray characters of historical figures and define atomic concept and atomic role and character the semantic relations between the relationship.And it is also applied to build inference rules and improve the semantic accuracy so that the reasoning of implied knowledge can be realized.In order to construct the ontology of historical character and realize the query reasoning accurately and completely,this paper firstly abstracts the relevant features and social relations of the historical figures in the historical background.The atomic and atomic roles of the characters are defined according to different classification.Complex concepts are constructed through atomic concepts,complex rules are constructed through atomic roles.Furthermore,the semantic links between concepts,attributes and concepts are standardized so as to manage to construct historical human ontology model and realize the query and reasoning of information.Finally,the feasibility of the historical character ontology and reasoning mechanism is verified by the application and research of Jingjiang palace,and the intelligent reasoning mechanism is provided for the intelligent tourism.The work of this paper includes the following aspects:(1)The method of constructing the historical characters ontology should be studied based on the description logic,and the domain ontology of palace characters which conforms to the historical characters will be constructed.The characteristics of the relationship between the characters of ancient special marriage system will be analyzed.Then relevant domain knowledge is about to be obtained.The formal relationship between the specific kinship and should be expressed by the use of description logic(DL)language and the logical relationship among the concepts will be analyzed.DL has strong expressive power and decidability,and it can express historical character in semantic level.Atomic concepts and atomic roles will be defined,and operators in DL will be constructed to describe composite concepts and complex relationships.We use OWL coding and visualization construction tool Protege to construct historical human ontology model.(2)In view of the lack of reasoning ability of ontology description language OWL DL,this paper proposes a query reasoning algorithm based on SWRL(Semantic Web Rule Language)rules.By using SWRL,the algorithm depict the relationship between the common sense in accordance of historical characters,and then transfers the concept of historical characters between the logical relationships into rule language.Through the combination of ontology and rules,more powerful and sufficient knowledge representation and reasoning ability are provided.The ability of deductive and reasoning of historical characters' domain knowledge will be enhanced.(3)Based on the historical character ontology knowledge base and the historical character relations rule set,a prototype of chatacter relationship query reasoning system is designed and achieved taking Jingjiang palace as the application scene.By the use of the Jena inference machine,the upper and lower concepts in ontology are analyzed,the relevant knowledge of characters in ontology model is transformed,and the rules are transformed to the regular format by XSLT.The inference engine integrates the known facts and custom rules in the ontology knowledge base,making the implicit semantic query results by reasoning which provides rich ontology semantic relations for SPARQL query ontology knowledge base.The feasibility and validity of query reasoning of historical character relationship are verified by experiments.The visual reasoning query of Jingjiang palace characters is realized.