Combination of DROOL rules and Protégé knowledge bases in the ONTO-H annotation tool
Óscar Corcho, Juan José Blázquez Resino, Marcos Niño, Richard Benjamins, Jesús Contreras, Andrés García-Silva, Eva Navas, Jesús Barrasa Rodríguez, Carlos Wert, Rafael Luis Millán, Juan Manuel Dodero · Hispana · 2005
ONTO-H is a semi-automatic collaborative tool for the semantic annotation of documents, built as a Protégé 3.0 tab plug-in. Among its multiple functionalities aimed at easing the document annotation process, ONTO-H uses a rule-based system to create cascading annotations out from a single drag and drop operation from a part of a document into an already existing concept or instance of the domain ontology being used for annotation. It also gives support to the detection of name conflicts and instance duplications in the creation of the annotations. The rule system runs on top of the open source rule engine DROOLS and is connected to the domain ontology used for annotation by means of an ad-hoc programmed Java proxy.