Relaxation method based on form features in Deep Web

In the process of query relaxation in Deep Web data integration system,there is no good way to determine the order of relaxation facing properties of numerous heterogeneous data sources at present.An order determination solution of property relaxation applied in Deep Web environment is proposed,judging importances of property by the form features.A more efficient sorting method is put forward,taking into account the main factors which affect similarities between relaxation results and query conditions when sorting the results.Finally experiments demonstrate the availability of the presented method.