查询词典 mining

The Eclat algorithm is used as the prototype for discussion of the problem of association rule mining with item constraints.

关联规则挖掘中存在的一个问题是，用户通常只能在挖掘开始前指定支持度和信任度的最小值，挖掘的结果是所有满足支持度与信任度约束的关联规则。

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

First, the two association rule algorithms Eclat and Eclat+ are compared. Eclat+ is not as good as Eclat when mining long patterns in large dataset.

首先，深入分析了频繁模式挖掘算法Eclat和Eclat+，在大数据集上挖掘长模式时，Eclat+的性能不及Eclat。

We experimentally compare the new algorithm against Eclat and Eclat+, making significant progress in runtime on our test database when mining long patterns in large dataset.

实验结果表明，在挖掘长模式时，改进的Eclat算法的运行速度较Eclat、Eclat+均有明显的提高。

This paper analyzes the relationship between econometrics and data mining in depth based on the conceptions of those two fields.

摘要从数量经济学和数据挖掘的概念出发，分析了这两个领域的联系与区别。

From three aspects, we show the application of data mining in distance eduction system.

本文从三个方面介绍了数据挖掘技术在远程教育系统中的应用。

Mining universal themes of sacrifice, death, the yearning to commune through language and identification - and the converse, effacement through enforced ideology - he probes the human psyche at the place where it transcends the borders of a nation or particular time, while at the same time reflecting on his own historical circumstances.

透过对全人类共通的牺牲，死亡的主题，对语言和身份的共识的渴望，以及被倾听的愿望的深入调查，他探索人的灵魂，制造了一种折射出中国乃至这个世界正在经历的巨大转移的方向迷失感。而这次，他更邀请所有的看客们共同来参加他的作品创作，从而透过艺术家制造的空间达到一个改写艺术史乃至与历史本身的目的。

Lastly,the improved genetic algorithm is successfully applied to a commerce Web server log mining and the experiment results indicate that the proposed algorithm is an effective method to avoid early convergence.

实验证明，这种改进的遗传算法能够有效避免早熟收敛现象，是一种有效的方法。

Hydraulic mining ; high production and high efficiency ; production management ; expert simulation system

水力采煤；高产高效；生产管理；专家模拟系统

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。