I completed my PhD degree in Computer Engineering at Boğaziçi University, and my advisor was Prof. Pınar Yolum. My PhD research is based on ontology-based privacy management in Online Social Networks. In one direction, I have proposed an efficient algorithm to detect privacy violations in Online Social Networks. In another direction, we have used agreement technologies (argumentation and negotiation) so that agents can negotiate on privacy concerns of their users before sharing some content. Please check my publications for more information about my research.