CAJ | 학술논문

根据数据流连续达到、大小无界和实时性强的特点,引出数据流多连续查询的基本概念.针对多连续查询的特点和用户的需求,将多连续查询优化技术分为单流多查询和多流多查询.详细论述了单流过滤型多连续查询优化技术和基于共享的多流多连续查询优化技术,通过全面系统地分析每种优化算法的基本思想,得出每种查询技术的优缺点及适用场合.
근거수거류련속체도、대소무계화실시성강적특점,인출수거류다련속사순적기본개념.침대다련속사순적특점화용호적수구,장다련속사순우화기술분위단류다사순화다류다사순.상세논술료단류과려형다련속사순우화기술화기우공향적다류다련속사순우화기술,통과전면계통지분석매충우화산법적기본사상,득출매충사순기술적우결점급괄용장합.
A basic concept of multiple continuous queries was introduced with information about the major characteristics of data streams: continuously arrival, unbounded size and real-time. According to the characteristics of multiple continuous queries, the technique of multiple continuous query optimization over data stream was divided into single-stream multiple query and multiple-stream multiple query. And this classification was designed to meet different users' requirements. Moreover, the authors comprehensively discussed the technology of single-stream query optimization based on falter and shared multiple-stream query optimization. After analyzing all of the optimization algorithms systematically, the advantages and disadvantages as well as the suitable occasions of each technology were given.