Rete algorithm is the most efficient forward inference algorithm, but it has some shortcomings: it does not provide support for the expression of timesensitive patterns. This paper proposes an extension of RETE through the concepts of time-stamped events and temporal constraints between events. This allows applications to write rules that process both facts and events. And we use the unjoin method to solve the null join problem. Then give the empirical result to show its feasibility and superiority. At last, we give the future work we should do to improve ulteriorly.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.