“NAVIGATING THE ABYSS: CHALLENGES AND SOLUTIONS IN QUERY AND PREDICATE EMPTINESS FOR ONTOLOGY-BASED DATA ACCESS” (2022) International journal of artificial intelligence, 2(02), pp. 01–04. Available at: https://www.academicpublishers.org/journals/index.php/ijai/article/view/54 (Accessed: 13 August 2026).