The OnAIR (Ontology Aided Information Retrieval), system allows users to enter a query in natural language and searches a digital video database for the clip which best answers the query. The system was first developed by Christian Paz-Trillo and Paula Braga and was part of Christian's Masters Thesis, supervised by Renata Wassermann.
Now the OnAIR is manteined and developed by Raphael Cóbe as the main theme of his Doctoral Thesis supervised by Dra. Renata Wassermann and Dr. Fabio Kon.
More Information about OnAIR can be found here.