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As semantic web grows, security concerns increase. One concern is controlling accesses to resources in this environment. In order to infer whether the access is allowed or not, different information of different entities including contextual information should be involved. From access control point of view, we divide the entities in semantic web into three categories: resources (objects), requesters (subjects), and environment (infrastructure, time, and location). In this paper, we present adoi:10.1109/waina.2009.87 dblp:conf/aina/EhsanAJ09 fatcat:embbmkejffckbchejnqnhbdpii