Patent ID: 7555518

Claim:
A method implemented on a computing device by a processor configured to execute instructions that, when executed on the processor, direct the computing device to perform acts comprising: calculating an access success rate for a plurality of clients for utilizing an access number to access a service provider, by a quality calculation module, wherein: a first set of clients have respective access success rates that are greater than or equal to the access success rate for the plurality of clients; and a second set of clients have respective access success rates that are less than or equal to the access success rate for the plurality of clients; and adjusting the access success rate based on a degree, to which, either the first set or the second set of clients predominate, wherein the degree is determined by a skew module comprising: calculating a first number of clients included in the first set of clients; calculating a second number of clients included in the second set of clients; and calculating the degree as a skew factor by subtracting the second number from the first number, a result of which is divided by a total number of the plurality of clients.