basic decision model

Based on the rough model under the similarity relation, some basic properties are studied, and a knowledge acquisition algorithm based on the similarity relation in decision systems is discussed.

本文基于一种相似关系下的粗糙集模型，给出了一些基本性质，讨论了该相似关系下的决策系统的知识获取算法。

Exploitation system in the medium - and upper-reaches of Shitou River valley includes basic information, database, stepped exploitation, model design, subsidiary decision and system management.

是本文观点和结论在具体规划中的运用。石头河中上游开发系统包括基本信息、数据库、梯级开发、模型设计、辅助决策、系统管理六大模块。

According to the model, a corresponding software has been programmed which provides a decision-making basic for optimizing transmission of long distance heated crude oil pipeline.

根据所建模型编制了相应软件，为加热原油的长距离优化输送提供了决策依据。