Fog computing is meant to deal with the problems which cloud cannot solve alone. As fog closer a user, it can improve some very important QoS characteristics, such as latency and availability. One of challenges in architecture heterogeneous constrained devices dynamic nature end devices, requires service orchestration provide an efficient placement inside nodes. An optimization method needed en...

The singular value decomposition (SVD) is a widely used matrix factorization tool which underlies plenty of useful applications, e.g. recommendation system, abnormal detection and data compression. Under the environment of emerging Internet of Things (IoT), there would be an increasing demand for data analysis to better human’s lives and create new economic growth points. Moreover, due to the l...