The hardware circuit and software of the portable copying instrument is researched . a feasible structure scheme is put forward according to the desired function , at89c51 single chip computer is used as the core of the instrument , zlg7289a and many kinds of new type circuit chip ( including : parallel data memory - ds1245 , sms0823 lcd ) are used as interface during hardware circuit designing , the printer ' s port and rs232 communication interface is also designed 硬件电路以at89c51单片机为核心,以zlg7289a按键组集成芯片作为人机接口,并采用新型电路芯片(包括大容量并行数据存储器ds1245 、液晶显示器sms0823 )设计手持抄录器的硬件电路,并设计了手持抄录器的打印机接口和rs232通信接口,从而简化了电路,减小了手持抄录器的体积,按键的软件实现过程。
In this paper , we mainly discuss association rule mining and improve the conventional algorithm in two different methods in order to adapt to the distributed / parallel data minin g . one is from rules to rules : association rules are firstly mined at the local sites , and then global association rules are generated from these local rules . the other is from data to rules : the local sites exchange their intermediate data results , and then global association rules are generated from these results 本论文中,主要考虑关联规则挖掘算法,从两个不同的角度从理论上探讨了分布式或并行数据挖掘: ( a )由规则到规则:先由各个独立的站点生成各自的关联规则,再在这些关联规则的基础上生成总的关联规则: ( b )由数据到规则:由各个独立的站点交换各自的中间结果来生成总的关联规则。
并行: parallel; pairing; concurren ...数据: data; record; information并行数据库: parallel database并行数据采集: parallel data acquisition并行数据处理: parallel data processing并行数据传输: parallel data transmission并行数据结构: parallel data structure并行数据媒体: parallel data medium并行数据位线: parallel data bit line并行数据形式: parallel data form并行数据处理技术: parallel data processing并行数据更新操作: concurrent data update operation并行数据检索操作: concurrent data retrieval operation并行数据控制器: parallel data controller并行数据库存取: concurrent database access并行数据库系统: parallel database system并行数据适配器: pda parallel data adapter并行数据知配器: parallel data adapter串并行数据转换器: serial to parallel data converter高速并行数据存取: high speed parallel data access并行数据库事务处理: concurrent database transaction并行数据库事项处理: concurrent database transaction并行数据驱动处理机: parallel data driven processor; parallel data-driven processor鼎并行数据库管理系统: kingbase enterprise server分布式与并行数据库: distributed and parallel databases