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Classic rough set theory based on equivalence relation takes complete system as object of study , and divides the region into some non-intersect equivalence class; But, in the real life, because of the errors in data measuring, understanding of data, or the restriction in data collection , it can make the decision-making system incomplete, that is, value of attribution of some objects is unknown, which restrains development of the theory to practical direction.

经典粗糙集理论以完备系统为研究对象，以等价关系为基础，通过等价关系将论域划分为互不相交的等价类；然而，在现实生活中，由于数据测量的误差，对数据理解或获取的限制等原因，使得在知识获取时往往面临的是不完备系统，即可能存在部分对象的一些属性值未知的情况，这就极大地限制了粗糙集理论向实用化方向发展。

Theoretical calculation shows the anomaly of reservoir tidal gravity is measured at μGal level, while the measured data shows the observation error of such tidal gravity at 10-μGal level. This indicates that the data noise may well disguise real anomalies, and therefore that the lack of measured anomaly data does not necessarily equate to the lack of oil and gas reservoir underneath. The actual observed tidal gravity anomaly can reach tens of μGal. Though it is more than three times the observation error, we can not attribute it to the reservoir-induced tidal gravity anomaly.

理论计算表明，油藏潮汐重力异常在微伽量级，而实际资料表明潮汐重力的观测误差为10 μGal量级，油藏潮汐重力异常可能会被噪声淹没，所以没有观测到潮汐重力异常不等于地下没有油气；实际观测的潮汐重力异常可达数十μGal，即使超过观测误差的3倍，也不能将它直接归因于油藏产生的潮汐重力异常。

With the widespread application and rapid development of the computer science and Internet technology, the expert estimates that the requirement of storage capability would be increased by the rate of 50%--100% every year;to lots of corporations, as a result of their work request, the data must be in online state everywhen. So, at the time of available data are extremely increased, how to protect the security, integrity and coherence of the data effectively and how to enhance the high availability in storage management software has become an important target.

跟着盘算机和互联网络技术的普及应用和飞速发铺，业界的剖析家估量，对存储容量的需求以后会以每年50%—100%的速度递增；对众多企业而言，因为其工作性质的请求，致使数据必需在每天24小时、每周7天、每年365天处于可使用状况，所以如何在数据呈现爆炸式增加的同时，更有效的维护数据的安全、完全和一致，更有效的提高管理体系的高可用性已成为各种存储管理软件追求的主要目的。

To collect structural data and conform the information through existing technology and find out the relation between data through data excavation, we can offer search results that are exacter and more intelligent.

通过我们已有的技术对结构化数据的提取和信息整合，用数据挖掘的方法找出数据间的联系，我们可以提供更准确更智能化的搜索结果。

During the period of building the data warehouse, we mainly researches the method of the exaction, transform and load of the data in different kind of data resources.

在数据仓库的实现中主要研究了异种数据源中数据的抽取、转换和载入的方法和策略。

In chapter four, I talked about how do we collect and collate the data used in sedan marketing system, studied the discrimination and the excerption of primary data and secondary data problem.

在第四章，主要是研究在轿车营销数据库系统中，所需数据的分类以及收集、整理等方面的内容，研究了初级数据、次级数据的甄别选录等问题。

Dissertation in is at this, we as reader borrow data for proofread data source, take advantage of data visits proofread technology center relationship rule, from under three aspects to inquire into how to exhume reader personalize fitting sexual books recommend

在本研究中，我们以读者之借阅资料为探勘的资料来源，利用资料探勘技术中的关联规则，从下三方面来探讨如何发掘读者个人化最适性的书籍推荐

It provides a way to find optimal lower dimensional approximations of the given data, and It enormously reduce the storage of the data which is needed when the physical processes is recurred. The physical process can be described in series expansion function that only is related to the time and space. It is optimal approximation of the given data in a certain least squares optimal sense. The most obvious advantage of the method is that it reduces the computation cost and computation time markedly.

它提供了一种描绘物理过程的有效方法，该物理过程可以写成一个只与时间相关的函数和一个只与空间相关的函数的展开式序列，且它们在均方意义上是最优的，在展开式中只需要少量的项数就可较准确地描述该物理过程，因此降低计算维数、减少计算量和节省计算时间是这个方法最明显的优点。

Expansivity, contraction, rebirth and vanishment events for management of land use data. And it further designed an object-superposition data updating model based on the land use feature of point, line and polygon,which would take the advantage of the GIS overlay function to effectly implement of updating spatial and attribute data .

从面向对象的方法入手，定义了引起土地利用变化的扩展、收缩、新生与消亡四种地理事件，并分别按点状地物、线状地物和面状图斑的土地利用实体特征设计了对象叠加更新模型，从而能利用GIS强大的空间分析能力，来有效地实现空间数据和属性数据的一致性更新。

In this paper the structure principle of GM(1, 1) was analyzed and the defect was pointed out that the traditional model only adapt to the data with exponential law, and only can fit for the monotonic data. The prediction is defected when there are two consecutive data unchanged, and 'a' is equal to 0.5 in prediction formula.

从传统GM(1，1)预测模型构造原理出发分析其存在的理论缺陷，此模型适用于具有较强指数规律的序列，只能描述单调变化过程，而且预测数据序列中出现连续两个相等值时将使得a等于0，会使预测数列发散致使预测失效。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新