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Secure Sensitive Data Sharing on a Big Data Platform 
Dynamic Spectrum Allocation for the Downlink of OFDMA-Based Hybrid-Access Cognitive Femtocell Networks 
Distributed Progressive Algorithm for Maximizing Lifetime Vector in Wireless Sensor Networks 
A Survey on Blood Vessel detection Methodologies in Retinal Images 
A Modified Hierarchical Attribute-Based Encryption Access Control Method for Mobile Cloud Computing