Patent ID: 7136899
Filing Date: 2006-11-14
Classification: G06F,G06Q,H04L

Abstract:
1. A method for filtering one or more messages for transmission to a subscriber computing system according to an individual information request criteria, the method comprising: constructing a binary decision diagram implication graph for each individual information request criteria specified for each subscriber, the binary decision diagram implication graph including a plurality of nodes expressing each information request criteria in an if-then-else normal form, the nodes being evaluated until a logical true or false node is reached; identifying logical implications from one or more nodes in a binary decision diagram from a first information request criteria to one or more corresponding binary decision diagrams within a second information request criteria; receiving one or more messages to be filtered; evaluating a first information request criteria based upon information within the received messages; evaluating one or more information request criteria based upon information within the received messages using the identified logical implications between one or more binary decision diagrams within the information request criteria being evaluated and one or more binary decision diagrams previously evaluated; and transmitting the received message to the subscriber computing system corresponding to an information request criteria evaluated to be satisfied by information contained within the received message.