An Association Rules Mining Method Based on Star Schema;

The Tool for Interactive Construction and Implemention of a star schema will offer a web-based user interface to design a data warehouse star schema from the schemas of some existing operational database.

But the corrective and natural changing of dimensional tables based on star schema make the aggregate data false.

Aimed at a typical application of data warehouse,an algorithm is proposed which utilizes key attribute index as HASH variable to construct star model of data warehouse.

The star model method proposed in this paper make use of the features that different context vales in the same context type have functional relation to perform context translation which can extremely reduce the amount of pre-definition translation rules and gain better flexibility,extensibility and maintainability.

Based on the introduction of ZigBee protocol,the hardware design and software design of ZigBee basic communication unit which were based on star network structure were discussed emphatically.

Tish paper introduces the characteristics of OPNET and analyses the variety of delay and load of sever when adding a network to a given star network.