Abstract
This invention disclosed a method used to process multiple continuous Top-k queries. This method is processed between one main server and plural ancillary servers. The character of this method is that this method has the following procedures. (1) A plurality of ancillary servers are randomly selected and the N accumulation values that are recorded for most times are inquired and calculated. (2) Every two abutting accumulation values are calculated and each two abutting accumulation values are averaged in order to obtain threshold values. (3) The threshold values can be used as the maximum and the minimum values in order to measure the changes of every accumulation values. When an accumulation value is higher than the maximum value or lower than the minimum value, a message will be returned to the main server.