A frequency domain procedure is proposed for the automatic tuning of proportional integral derivative (PID) controllers. The nonparametric open-loop frequency response function is estimated on-line (in closed loop), and simple discriminatory parameters are obtained, which enable appropriate tuning of the controller. For processes with some prior knowledge of the dynamics, the method removes the...

The FD-Autotune submissions for the IPC-2011 sequential tracks consist of three instantiations of the latest, highly parametric version of the Fast Downward Planning Framework. These instantiations have been automatically configured for performance on a wide range of planning domains, using the well-known ParamILS configurator. Two of the instantiations were entered into the sequential satisfic...

Hybrid peer-to-peer assisted cloud-based video-on-demand (VoD) systems augment cloud-based VoD systems with P2P networks to improve scalability and save bandwidth costs in the cloud. In these systems, the VoD service provider (e.g., NetFlix) relies on the cloud to deliver videos to users and pays for the cloud bandwidth consumption. The users can download videos from both the cloud and peers in...

Since the mid-1990s, researchers have been trying to use machine-learning based approaches to solve a number of di erent compiler optimization problems. These techniques primarily enhance the quality of the obtained results and, more importantly, make it feasible to tackle two main compiler optimization problems: optimization selection (choosing which optimizations to apply) and phase-ordering ...