Analysis of Competency Questions for Automatic Generation of Lexico-Syntactic Ontology Design Patterns

he work considers an approach of automatic generation of lexico-syntactic ontology design patterns based on analysis of competence questions expressed in natural language. Process of the generation of lexico-syntactic patterns includes generation of the scientific dictionary, extraction of the entities of the ontology, formation of the structure of extracted relations, such as Data Property and Object Property, and a set of restrictions, including semantic, grammatical and positional restrictions. We use competency questions for specifying grammatical and positional restrictions and extract the necessary grammatical restrictions for each specific relation. For the experiment, we used the “Decision support in weakly formalized areas” ontology, a corpus of scientific texts of the same subject area. During the experiment, we got the following results: the F1 score was 0.77 for attributes and 0.55 for relations. Comparison of the results obtained for patterns without grammatical restrictions and the results obtained for patterns with grammatical restrictions showed that adding restrictions improves extraction of ontology entities.