This book constitutes the refereed proceedings of theWorkshops and Symposiums of the 15th
International Conference on Algorithms andArchitectures for Parallel Processing ICA3PP 2015
held in Zhangjiajie China in November 2015.The program of this year consists of 6symposiums
workshops that cover a wide range of research topics on parallelprocessing technology: the
Sixth International Workshop on Trust Security andPrivacy for Big Data TrustData 2015 the
Fifth International Symposium onTrust Security and Privacy for Emerging Applications TSP 2015
the ThirdInternational Workshop on Network Optimization and Performance Evaluation NOPE2015
the Second International Symposium on Sensor-Cloud Systems SCS 2015 theSecond International
Workshop on Security and Privacy Protection in Computerand Network Systems SPPCN 2015 and the
First International Symposium onDependability in Sensor Cloud and Big Data Systems and
Applications DependSys 2015. The aim of these symposiums workshops is to provide aforum to
bring together practitioners and researchers from academia andindustry for discussion and
presentations on the current research and futuredirections related to parallel processing
technology. The themes and topics ofthese symposiums workshops are a valuable complement to the
overall scope ofICA3PP 2015 and give additional values and interests.
