Network ontology language is an integral part of semantic web activities. It is designed to process the content of information, not just present it to human beings.
By providing more words with formal semantics, it is superior to XML, RDF and RDF Schema(RDF-S) in terms of machine understandability of Web content. The purpose of OWL is to increase information about resources that describe or provide network content, so that network resources can be more easily accessed by those automatic processes.
Due to the inherent distribution of semantic networks, OWL must allow information to be collected from distributed information sources. Among them, allowing ontologies to connect with each other, including explicitly importing information from other ontologies, can partially realize this function. OWL network ontology language has been recognized by the World Wide Web Consortium, and it is a family of knowledge expression languages used to compile ontologies.
Knowledge Graph is called knowledge domain visualization or knowledge domain mapping in library and information science, which is a series of different graphs showing the relationship between knowledge development process and structure. Describe knowledge resources and their carriers with visualization technology, and excavate, analyze, construct, draw and display knowledge and its relationship.
Specifically, knowledge atlas is a modern theory that combines the theories and methods of applied mathematics, graphics, information visualization technology, information science and other disciplines with bibliometric citation analysis and * * * analysis, and vividly displays the core structure, development history, frontier fields and overall knowledge structure of disciplines by using visual atlas, so as to achieve the purpose of multi-disciplinary integration.
It shows complex knowledge fields through data mining, information processing, knowledge measurement and graphic drawing, reveals the dynamic development law of knowledge fields, and provides practical and valuable reference for subject research.
So far, its practical application has gradually expanded in developed countries and achieved good results, but it is still in the primary stage of research in China.