Abstract. Rewriting of conjunctive queries using views has many applications in database and data integration. We investigate ways to improve performance of rewriting and propose a...
For a positive integer n that is not a power of 2, precisely the same family of convex polygons with n sides is optimal in three different geometric problems. These polygons have ...
—Access control is one of the most important security mechanisms in cloud computing. Attribute-based access control provides a flexible approach that allows data owners to integ...
Yan Zhu, Hongxin Hu, Gail-Joon Ahn, Dijiang Huang,...
— Energy efficiency has become one of the most important issues to be addressed in today’s System-on-a-Chip (SoC) designs. One way to lower the power consumption is to reduce ...
Wireless sensor networks hold the potential to open new domains to distributed data acquisition. However, such networks are prone to premature failure because some nodes deplete t...
Hengyu Long, Yongpan Liu, Yiqun Wang, Robert P. Di...