Abel, Fabian and Coi, Juri De and Henze, Nicola and Koesling, Arne and Krause, Daniel and Olmedilla, Daniel Aberer, Karl and Choi, Key-Sun and Noy, Natasha and Allemang, Dean and Lee, Kyung-Il and Nixon, Lyndon J B and Golbeck, Jennifer and Mika, Peter and Maynard, Diana and Schreiber, Guus and Cudré-Mauroux, Philippe Enabling Advanced and Context-Dependent Access Control in RDF Stores Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea Springer Verlag 2007 4825 November 1–14 LNCS Berlin, Heidelberg Semantic Web databases allow efficient storage and access to RDF statements. Applications are able to use expressive query languages in order to retrieve relevant metadata in order to perform different tasks. However, access to metadata may not be public to just any application or service. Instead, powerful and flexible mechanisms for protecting sets of RDF statements are required for many Semantic Web applications. Unfortunately, current RDF stores do not provide fine-grained protection. This paper fills this gap and presents a mechanism by which complex and expressive policies can be specified in order to protect access to metadata in multi-service environments. http://iswc2007.semanticweb.org/papers/1.pdf http://data.semanticweb.org/conference/iswc-aswc/2007/proceedings 2007 access control data_management database information_integration iswc personal_information_management privacy rdf research_09 security semantic_web store trust_(social_sciences)