Relational Model Theory的意思|示意

Rough relational database model is Multi-valued information system essentially, inheriting and extending classical rough sets theory. But there is much difference between them.

粗糙关系数据库模型从本质上来说就是多值信息系统，它继承和扩展了经典的粗糙集理论，但与经典粗糙集理论又有着很大的不同。

Secondly, we introduce the relational knowledge of wireless channel, the system model and basic theory of OFDM, also analyze OFDM signal's design rules.

接着介绍了无线信道的相关知识、OFDM的系统模型和基本原理，并分析了OFDM信号的设计规则。

This paper applies the grey theory into evaluation of staff's satisfaction degree in enterprise, and constructs an evaluation model based on grey relational analysis method.

本文将灰色理论引入企业员工满意度评价中，建立了基于灰色关联分析的企业员工满意度评价模型。

Based the gray trend relational degree and systems engineering theory, the model of gray trend relational system is investigated.

本文应用系统工程理论，结合灰色趋势关联度，研究了灰色趋势关联系统及数学模型。

With assembly model organized in hierarchical and relational mode, the problem of automatically generating assembly and disassembly sequence is explored using cut set theory.

采用层次与关系相结合的装配模型，研究利用割集法自动求解装配与拆卸的并行序列问题。

In the application of the aforementioned theory, the design of database 's system model on DSS is elaborated, including data modeling, the choice and realization of relational database.

在实际应用中，详细论述了采用前述的建模方法进行决策支持系统数据仓库层模型的设计，包括数据建模、关系数据库选择及实现。