Active XML是一种新型的具有交换内涵数据功能的语言架构。在Active XML文档中内涵数据是通过本地或远程Web services调用方式来获取。在Peer to Peer网络中,Active XML能改善工作任务的划分和分布。然而,如果一个站点属于多个Peer to P...Active XML是一种新型的具有交换内涵数据功能的语言架构。在Active XML文档中内涵数据是通过本地或远程Web services调用方式来获取。在Peer to Peer网络中,Active XML能改善工作任务的划分和分布。然而,如果一个站点属于多个Peer to Peer网络中的一员并且这个站点提供的服务被大量站点频繁调用,这个站点就会成为整个Web服务系统的瓶颈。在本文中,我们提出了一种在Peer to Peer网络中基于AXML技术的缓存机制的良好解决方案。该方案可以利用Active XML自身特性极大的简化缓存过程。展开更多
The problem of document rewriting is a fundamental problem in active XML（AXML） data exchange and usually has a higher complexity. Prior work was focused on string automaton theory. This paper tries to solve it by us...The problem of document rewriting is a fundamental problem in active XML（AXML） data exchange and usually has a higher complexity. Prior work was focused on string automaton theory. This paper tries to solve it by using tree automaton. More precisely, the paper firstly defines a new tree automaton, active XML tree automaton （AXTA）, which can efficiently represent the set of AXML documents produced by an AXML document or AXML document schema. And then, an algorithm for constructing AXTA automaton is also proposed. Finally, a polynomial time（PTIME） determining algorithm for AXML document rewriting is presented based on AXTA automaton.展开更多
文摘Active XML是一种新型的具有交换内涵数据功能的语言架构。在Active XML文档中内涵数据是通过本地或远程Web services调用方式来获取。在Peer to Peer网络中,Active XML能改善工作任务的划分和分布。然而,如果一个站点属于多个Peer to Peer网络中的一员并且这个站点提供的服务被大量站点频繁调用,这个站点就会成为整个Web服务系统的瓶颈。在本文中,我们提出了一种在Peer to Peer网络中基于AXML技术的缓存机制的良好解决方案。该方案可以利用Active XML自身特性极大的简化缓存过程。
基金Supported by the Natural Science Foundation ofHeilongjiang Province(F00-06)
文摘The problem of document rewriting is a fundamental problem in active XML（AXML） data exchange and usually has a higher complexity. Prior work was focused on string automaton theory. This paper tries to solve it by using tree automaton. More precisely, the paper firstly defines a new tree automaton, active XML tree automaton （AXTA）, which can efficiently represent the set of AXML documents produced by an AXML document or AXML document schema. And then, an algorithm for constructing AXTA automaton is also proposed. Finally, a polynomial time（PTIME） determining algorithm for AXML document rewriting is presented based on AXTA automaton.
