INFORMATION SERVICE FOR FACTS EXTRACTED FROM DIFFERING SOURCES ON A WIDE AREA NETWORK WITH TIMELINE DISPLAY

摘要

In one general aspect, a wide area network fact information service system is disclosed. It includes a real time database that stores information about facts on the network by recording at least an identifier and an occurrence timepoint for each fact, with the occurrence timepoint identifying a time at which the fact occurred. It also includes fact-based expression logic operative to interact with expressions that define relationships between facts based on both their identifiers and their timepoints, and a timeline display interface operative to display a timeline that shows a temporal relationship between facts.