cep系统

SASE+是SASE的延续，主要为SASE添加了对Kleene模式的支持，并且对Kleene语义，提出了三种匹配策略，均延用至今。本文参考文献：

[1]. Diao, Yanlei, Neil Immerman, and Daniel Gyllstrom. “Sase+: An agile language for kleene closure over event streams.” UMass Technical Report (2007).

[2]. Agrawal, Jagrati, et al. “Efficient pattern matching over event streams.” Proceedings of the 2008 ACM SIGMOD international conference on Management of data. ACM, 2008.