(Semi)automatic annotation can be carried out using:
schema matching and text classification techniques.
K. Belhajjame, S.M. Embury, N.W. Paton, N.W., R. Stevens and C.A. Goble, Automatic Annotation of Web Services Based on Workflow Definitions, P roc. 5th Intl. Semantic Web Conference , Springer, 116-129, 2006.
P ⋈ PS ( P has 200,000 tuples, PS has 800,00 0 tuples).
Simulation of parallel run on three nodes.
Types of imbalance:
Constant : A consistent external load exists on one of the nodes throughout the experiment. The level of the external load represents the number of external tasks that are seeking to make full-time use of the machine.
Periodic : The load on one of the machines comes and goes during the experiment. The duration of the load indicates for how long each load spike lasts; and the repeat duration represents the gap between load spikes.