rough rule

The attributes reduction and decision rule generation are the kernel contents of rough set theory.

其中,属性约简算法和规则提取算法是粗糙集理论及应用研究的重要内容.

The Prolog rough fuzzy fact base and the Prolog rough fuzzy rule base are used to constitute the knowledge base in the knowledge reasoning system. Finally, the knowledge reasoning system supported by the semantic Web rough fuzzy ontology is designed and developed.

由粗糙模糊事实知识库和粗糙模糊规则知识库组成知识推理系统的知识库最后，设计并实现语义Web粗糙模糊本体支持的知识推理系统。

In fact, one-person-month-per-use-case is a good rule-of-thumb metric for rough estimation.

事实上，对于粗略估计而言，每个用例一个人月是一个不错的经验法则。

As a very rough rule of thumb, then, up to about two years of slowdown following a financial shock has not been out of the ordinary over the years-provided the lender of last resort has done its stuff.

由此，作为一个凭经验得出的非常粗糙的规律，在最后贷款人做了它该做工作的前提下，多年来金融冲击后的经济低迷时期持续长达两年左右时间的情形屡见不鲜。

Rough gentian leaf blight was caused by Septoria gentianae. Study on occurring rule and controlling techniques of spot blight of Gentiana

龙胆草斑枯病是近几年生产上发生的一种毁灭性病害。龙胆草斑枯病发病规律及防治技术研究

Rough membership function is used to compute rule confidence, which diminishes subjective influences on confirming certainty factor ( CF) and makes CF more accurate and objective.

采用粗糙隶属函数计算规则可信度可减少确定可信度（Certainty Factor，CF）的主观因素，使规则可信度更加精确客观。