METHOD AND SYSTEM FOR SELECTIVELY TRACING SEMANTIC WEB DATA USING DISTRIBUTED UPDATE EVENT, AND STORAGE DEVICE

PROBLEM TO BE SOLVED: To selectively trace semantic web data using distributed update events, specify a sub graph of semantic web statement graphs that are to be locally duplicated using application codes, and receive only update events related to statements within the sub graph to initialize a tracker to be used for keeping the sub graph in the latest state. SOLUTION: A method for selectively tracing semantic web data has a step for providing a set of semantic web statements, a step for identifying one or a plurality of sub sets of the set of semantic web statements, and a step for storing the one or the plurality of sub sets into a specified computer system. One of the sub sets is assigned with one or a plurality of trackers that are related to each of the sub sets, and when updates for semantic web statements within the sets are issued, it is identified which update corresponds to one of semantic web statements within the one or the plurality of subsets using the one or the plurality of trackers. It is preferable that each of the trackers can determine whether or not the statement exists within the sub sets related to each of the trackers based on a single statement update event. COPYRIGHT: (C)2007,JPO&INPIT