IPSN 2015-Proceedings of the 14th International Symposium on Information Processing in Sensor Networks (Part of CPS Week) 14th International Symposium on Information Processing in Sensor Networks, IPSN 2015 IPSN IPSN '15 : proceedings of the 14th International Conference on Information Processing in Sensor Networks, April 13-16, 2015, Seattle, Washington, USA