挖掘

In order to make good use of the advanced technology of data mining, two kinds of classifiers (C4.5 decision tree and support vector machine, SVM) from data mining are improved.

3为了有效地利用数据挖掘的先进技术，对数据挖掘中两种分类方法C4.5决策树以及SVM进行了改进。

The particle size distribution of detritus sampled from different excavation machines and methods is calculated and analyzed.

选取隧道挖掘过程中所产生的破碎岩片为研究对象并系统分析了各种掘进机械及挖掘方法下破碎岩片的粒度分布。

That is to say, there appears a new direction in data mining field: visual data mining.

因此，数据挖掘领域中产生了一个新的方向：可视化数据挖掘。

After a brief summary on data mining and rough set theory, the research works in the thesis can be descript as follows: 1. To the problem that finding rules in enormous data is very timeconsumable and the expansibility of existed algorithms is not very good, the thesis proposes a new method to discompose large data table based on the concepts of positive region and the importance of attribute in rough set theory.

Rough集理论是一种新型的处理不确定性知识的数学工具，围绕着数据挖掘领域存在的问题，本文利用Rough集理论与Rough分析工具，提出若干解决方案，同时在具体处理问题过程中引入了信息理论、因子分析等方法，与Rough分析结合使用，讨论了Rough集技术在知识发现、关联规则挖掘、模式分类以及数据清洗等问题中的应用。

It discusses four classical mode of DM and some common mode based on KM method and technology.

讨论分析数据挖掘的四种典型的模式以及常用的数据挖掘技术和方法。

In analytical model block, drawing the association rule between product and sale region from sale transaction data by applying with the algorithm of Aprior.

在分析模块中应用了数据挖掘中关联规则挖掘算法的Aprior算法对销售商品和销售地域之间的关联规则进行了提取。

Dredging grab is a very important component of dredger, the enhancement of its working efficiency, will be helpful to the dredging efficiency directly, and also will enhance the capability and working efficiency of the dredger, this is meaningful to the dredging industry.

作为挖泥船的重要组成部分之一疏浚抓斗的挖掘效率的提高，将从源头上影响挖掘的效率，提高挖泥船的工作能力和效率，这对于疏浚有着现实的意义。

Data Mining Eclat algorithm, very good code, you can tap the database of association rules, oh, very effective!

详细说明：数据挖掘中的eclat算法，很好的代码，可以挖掘数据库中的关联规则，很有效哦！

They also can be solved in memory. Thirdly, an algorithm for distributed mining association rules with multi-rule constraints called DMCASE is presented using sampling and constrained Eclat algorithm.

论文在基于约束的Eclat类算法的基础上，结合抽样的方法，提出了一种分布式挖掘多种规则约束的关联规则挖掘算法—DMCASE算法。

It is proved in theory that with the introduction of item constraints, Eclat+ could greatly improve the efficiency and speed of association rule mining, and the Eclat+ is compared with some other related algorithms.

通常这些规则中仅有很小的一部分是用户所关心的，因此泛泛的挖掘既降低了算法的运行速度也使挖掘结果失去了核心。Zaki提出的 Eclat[4]算法利用垂直的数据库结构，并利用基于前缀的等价关系将搜索空间划

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了