Research On Construction And Application Of Domain Ontology In The Ancient Architecture

With the development of the times,the ancient architecture left over by the ancients are rich and colorful,the ancient architecture brings people not only visual experience,and the cultural knowledge hidden behind them,It is also the people yearning for the historical background of these cultural cities and buildings preserved in different historical periods.People's pursuit of ancient architecture,the development of Internet technology and the arrival of the era of big data,make the users find travel information more easily through the network.However,it is often found that the query results do not match the phenomenon.Structured data storage is able to regulate massive amounts of information well.The structured knowledge base can make the division of knowledge more professional norms.Ontology in semantic Web is a set of axioms,Description logic is an effective tool to express ontology.Using the question answering system based on ontology can make the query results more accurate.Specific domain knowledge base is the norm in the field of concept,object,data attribute and the semantic relationship between with other concepts.At the present stage,the knowledge of ancient architecture is much,but classification is not perfect,so we use the advantage of ontology structuring to standardize the knowledge in this field in this paper.In this paper,firstly we study the knowledge of ancient architecture,construct the ontology of ancient architecture,and describe it formally;Secondly,we need to do the semantic analysis of the user's questions,the focus word recognition,and extract the corresponding semantic relations on the basis of part of speech;Finally,the knowledge base is queried and the result is obtained,and the result is returned to the client.The main work of this paper is as follows:(1)Construction of ancient architecture ontology:Draw lessons from the object oriented modeling method in Software Engineering to construct ontology.To collect the data of ancient architecture,extract the attributes of the ancient architecture,reintegrate the information of ancient architecture,and analyze the internal logical relationship of the concept.The ontology of ancient architecture is constructed by using visual ontology tools Prot6g6 and coding language OWL2.Defining atomic concepts and atomic roles,using the description logic to express the ontology of the ancient architecture.(2)Definition and reasoning of the query rules in the ancient architecture ontology:Using the analysis algorithmthe based on semantic dependency to understand natural language questions.Using Jena to label the data resources,to be stored in the database persistently,to form the data with semantic information,and to provide the data table for the ontology mapping.Using SPARQL language for semantic query and reasoning,custom SWRL rules of the ancient architecture,to enhance the ability of reasoning in the field of the ancient architecture.(3)Design of mobile APP platform for knowledge query of the ancient architecture:Using the direct parent class and subclass of the Jena analytic concept to design the list display function of the ancient architecture.This paper puts forward the formula for calculating the influence factors of the ancient architecture,and calculates the influence degree of the examples in the knowledge base.Based on the above theory and algorithm,implementing the question-answering system prototype based on the ontology of the ancient architecture,and the above research results are combined with mobile device.On the phone,we can run the ancient architecture APP,innovative wisdom tourism products,use AJAX Technology to load data dynamically.And finally,the accuracy of question and answer is verified and compared.