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data mining相关的网络例句

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与 data mining 相关的网络例句 [注:此内容来源于网络,仅供参考]

For mining of frequent itemsets in data streams with a sliding window, efficient bit vector based algorithms are proposed.

我们也针对串流资料的滑动窗模型提出了两个单次频繁项目集合探勘演算法MFI-TransSW与MFI-TimeSW,可有效地在交易感知滑动窗模型以及时间感知滑动窗模型中探勘出目前存在的频繁项目集合。

MLR data showed that more than 40,000 sq km of land had been destroyed by the end of 2005 because of mining.

国土资源部的数据显示,截至2005年年底,就有超过40,000平方公里的土地被因为采矿而毁坏。

Application of tradition method in data processing of Mining Subsidence is of low precision and waste of time.

用传统的方法对开采沉陷数据进行处理,不仅计算量大,而且繁琐、精度不高。

This paper proposes the sampling theorem in mining subsidence according to the mathematical principle in data processing.

根据数字处理中的数学原理,提出了开采沉陷中的抽样定理。

The basic theories of mathematical morphology for binary image are stated, and the most simple structure elements of morphologic transformation for binary images are proposed and proved. The geodetic morphologic transformation models are also developed. For the purpose of improving the speed of transformation in computer, the"set symmetric difference"is introduced to adapt each model. Some new morphologic filtering models and quantitative evaluating model of filtering effects in image processing are proposed, under the applied condition. The morphologic thinning methods are studied, and two new morphologic thinning models are developed. On the basis of analyzing the characteristics of mining maps, the image vectorizing tactics and a series of algorithms are proposed, including dynamic adaptive image thresholding using two thresholds, graphic and text separation, noise removal, and multi elements extracting models with mathematical morphology. Accuracy preserving compressed vectorizing model for image vectorization is put forward to generate vector data in multi layer.

论文对二值图象形态学的基础理论进行了较系统的阐述,提出并证明了二值图象处理中形态变换的最简单结构元素,并发展了测地形态变换模型;为了提高形态变换的计算机实现速度,引入了集合论中"对称差"的概念对各形态变换模型进行了改化;针对数学形态学在图象处理中的实际应用,提出了新的形态滤波模型及滤波效果的度量评价模型;研究了形态细化方法,提出了快速形态细化和保形快速形态细化算法;在研究矿图基本特征基础上,提出了人机协同矿图扫描图象矢量化处理策略及一系列扫描图象处理算法模型,包括双阈值动态自适应图象二值化、图文分离、噪声去除、图面多种要素提取形态变换模型等;在图象栅格—矢量转换中,提出了保精度压缩矢量化模型,以生成分层要素矢量数据。

Inside industry of support of foreign trade edition, the statistic of the data inside the industry, analysis, mining, put forward science finally decision-making.

外贸版支持企业内、行业内数据的统计、分析、挖掘,最终提出科学决策。

Therefore, this paper fuzzy clustering method, first of all to highlight the dangers of all kinds of mining coal seams of each index measured data as samples to establish fuzzy similar matrix, find the transitive closure, re-use to do clustering, plot dendrogram.

所以本文利用模糊聚类方法,首先把矿区内各种突出危险性煤层的各指标的实测数据作为样本,建立模糊相似矩阵,求出传递闭包,再利用做聚类,画出聚类图。

In this paper, a lot of research works of algorithms of mining CAD has been done. Many important mine specialty graph operation algorithms have been put forward. The main results are as follows: polygons cut out algorithm, two close polygons mutual, merge and subtract algorithm, polygon vector fill, any vector polygons area calculating and sequence polygons or multifold which has the direction and region area calculating, curve smoothing, graph element search for any region, graph element attrib collect in any region, parallel polygon or vector intersection-point push out or pull in, ore reserves and grade calculating for any type polygon, mine spatial data searching and boundary line tracking and automatic link algorithm etc.

论文在矿山图形算法研究方面做了大量的工作,提出了许多有价值的矿山专业图形运算算法,主要算法有:多边形裁剪算法、闭多边形的加、减、并算法、多边形的矢量填充算法、任意有向多边形、有向多连域、有向多边形序列面积算法、多种曲线光滑算法、任意区域的图元搜索算法、任意区域图元属性提取算法、多边形平行外推/内缩算法、任意多边形储量品位计算、矿山空间数据搜索算法、界线的自动追踪和连接等。

Two new data structures TOPSIS-Tree and RELIS are devised to maintain potential significant itemsets and mined results, respectively. Moreover, three optimal strategies are exploited to reduce time and space consumption of the algorithms:(1) pruning impotent nodes in the newest basic window whenever a sliding window updates,(2) promoting support threshold during mining process dynamically, and (3) adjusting pruning threshold adaptively and heuristically.

设计概要结构TOPSIS-Tree和RELIS分别存储和记录流数据的摘要信息和当前滑动窗口的挖掘结果,并设计了三种优化策略用以提高算法的时空效率:(1)滑动窗口更新时剪枝最新基本窗口的无功节点;(2)挖掘过程中动态提升支持度阈值;(3)启发式自适应调整剪枝阈值。

Based upon the data from major coal mining and prospecting districts in China, the correlation of coal petrological and physical factors such as coal rank, lithotype and maceral to the coal methane content, absorption and permeability was summarized, and their controlled gas mechanisms were discussed.

发现煤级-含气量的&包络线&具有阶段性演化规律,最大含气量的显著变化与煤化作用阶跃高度一致,煤储层含气量较高的地区沿纬向等间距展布且与较高煤级煤分布区吻合,煤的兰氏体积与镜质组含量关系中存在一个镜质组含量临界值。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。