查询词典 data mining

This design is divided into 6 part totally they respectively is:(1)General introduction;(2)The mineral bed endows with the natural general situation and the original data(3) mineral bed geologies of the regions;(4) Developmengt system;;(5)mining method;(6)Mineral mountain airiness;(7)The mineral mountain promotes and transports.

本设计共分为6个部分，它们分别是：（1）总论；（2）矿床赋存地区的自然概况及原始资料（3）矿床地质；（4）开拓系统；（5）采矿方法；（6）矿山通风；（7）矿山提升和运输。

This paper proves that XFPD has better performance than WL in the work of mining XML frequent patterns theoretically and experimentally, and gives a proof of the validity and feasibility of the XML data storage method presented in this paper by the implementation of an antetype model.

本文从理论和实验两方面证明了在挖掘XML频繁模式时，XFPD算法比WL算法具有更加良好的性能，并通过一个原型系统的实现，验证了本文提出的XML数据存储方法的有效性和可行性。

For continuous data knowledge mining,FCM clustering is used to disperse continuous data to discrete variables for rough set to deal with.

对连续数据知识挖掘可采用模糊C均值聚类将其离散化，再应用粗糙集进行约简。

Among these, data reduction techniques can be applied to obtain a reduced representation of the data set that is smaller in volume and speed up the mining process.

其中数据缩减技术最大限度地精简数据量，提高数据挖掘的执行速度与效率。

Since any frequent itemset is a subset of a maximal frequent itemset (an itemset is maximal frequent if it has no superset that is frequent), this paper proposes the DMFI (Discovery of Maximal Frequent Itemsets) algorithm for mining all the maximal frequent itemsets from data sets. This algorithm searches the maximal frequent itemsets in data sets from both bottom-up and top-down directions in the meantime. This paper proposes an algorithm that evaluates the boundaries on the support and confidence of uncalculated itemsets by exploiting the information provided by the calculated itemsets.

本文在经典关联规则的基础上，提出了一系列扩展的关联规则开采算法：发现关联规则的难度体现在发现频繁项目集上，事实上最大频繁项目集（其所有的超集都为非频繁项目集的频繁项目集）的集合已经包含了所有的频繁项目集，本文提出一种发现最大频繁项目集的算法DMFI(Discovery Maximal Frequent Itemsets)，该算法采用自底向上和自顶向下相结合的搜索策略对数据空间进行有效的搜索。

By using the kernel function, the input space is mapped to a high dimension feature space where the data are expected to be more separable, the initial centroids in the feature space are selected by applying the KRA algorithm, and the large and small clusters are partitioned and the outliers can be split from the large clusters iteratively after the kk-means clustering. As a result, the audit data can be clustered better. Secondly, the closed sequential patterns mining algorithm CloSpan is improved according to the restrictions that is composed of the axis properties and reference properties.

该方法通过核函数把数据样本空间映射到一个高维的特征空间，使数据在新的空间中具有更好的可分离性；在特征空间采用KRA算法选取初始聚类中心，然后在核k-means聚类的基础上，划分出大簇小簇并在大簇中分离出异类再次进行核聚类，从而不断地优化聚类结果。

Coverage includes water and soil contamination; environmental problems associated with transportation; geological processes affecting biosystems and people; remediation of man-made or geological hazards; environmental problems associated with mining and abstraction activities for industrial minerals, coal and ores as well as for oil and gas, water and energy; environmental impacts of exploration and recultivation; impacts of hazardous facilities and activities; land use management; management of environmental data and information in data banks and information systems.

主题包括：废弃物处理和管理造成的水和土壤污染；工业造成的水和土壤污染；运输引起的环境问题；威胁或影响生物系统和人们的地质作用过程；人类造成的或地质作用引起的灾害的减缓；地球物质材料资源的恢复保护；采矿活动造成的环境问题，如煤、金属矿石、石油、天然气、水等；勘探的环境影响；危险物质和活动的环境影响；土地利用（包括社会政治的政策决定）；环境数据和信息的管理。网站免费提供该刊1975年创刊至今的目次和文摘，全文则仅限授权用户使用。

Engaged in wire and cable high-tech research and production of technology-intensive, cost-effective large-scale enterprises with international advanced level in the 1990s the 500 KV and below a number of cross-linking cable production lines, 35 KV cable rubber production lines, marine, mining cable production lines, fiber optic cable , Data cables and fiber optic cable production line, EHV cable detection device, capable of producing bare wires, electrical equipment wire and cable, power cable and distribution type of air-insulated strengthen Muxian Cao, 5, 6, 7 types of data cables, fiber optic cable has six categories , More than 100 series, more than 10,000 kinds of products specifications.

从事电线电缆高新技术研究和生产经营的技术密集型、高效益的大型企业，拥有国际90年代先进水平的500KV及以下多条交联电缆生产线，35KV橡缆生产线、船用、矿用电缆生产线、光缆、数据缆生产线以及光缆、超高压电缆检测装置，能生产裸电线、电气装备电线电缆、电力电缆、配电类空气加强绝缘型母线槽，5、6、7类数据缆、光缆共六大类、百余个系列、万余种规格的产品。

Delay time interval effects for the time-frequency characteristic of blast vibration signal was studied aided by vibration data analyze software via matlab5.6 based on data Reassigned Smoothing Pseudo Wigner-Ville Distribution, the test data of Hainan iron corporation No.1 mining area.

基于平滑伪Wigner-Ville分布信号重排，用matlab5.6编写的振动信号处理软件，并在海钢北一采场就微差间隔时间对爆破振动的影响进行试验的基础上，研究了振动信号时频特征的微差时间效应。

The text obtains some data that caving span of immediate roof is 30m, caving span of main roof at first weighting is 42m and caving span of main roof at periodic weighting is 14m. Mining influence range is determined about 40m through numerical modeling, namely about three advance pillars were in the range of mining influence.

利用数值模拟得出煤柱采场直接顶的垮落步距为30m，老顶的初次来压步距为42m，老顶的周期来压步距为14m；通过模拟超前支承压力，确定了采动影响范围约为40m，即采场超前的三个煤柱都在影响之内。

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。