查询词典 cluster

Cluster analysis is one of important techniques in data mining and exploratory data analysis.

聚类分析是数据挖掘和探索性数据分析中一个极为重要的技术。

From angle of external economy, knowledge spillover and social capital, the paper discusses the relation between corporation cluster, agglomeration economy, city location and development of urban services.

本文从外部经济、知识溢出和社会资本等角度分析了企业集聚、经济集聚状况、城市地理位置与城市服务业发展的关系，并利用分层线性模型检验了集聚效应对服务业差异的影响。

Hence, the traditional factors play a determinative role to the formation and development of oil-gas industrial cluster; however, they have shortages at the same time, such as the uncertainty of natural resources, transportation cost influenced by market, irrational external division, and transaction fee.

同时，传统因素在油气产业集群发展中存在不足，如自然资源优势中存在诸多的不确定因素、交通成本受市场函数影响、分工专业化中的外部分工不尽合理、交易费用理论的局限性等。

The competitive advantage in the junior stage is an advantage of the cost, deriving from the incensement in valid demand and supply of high technology products, economy of external scale and external scope, the specializing division of labour on the basis of specialization and the decreasement of transaction cost; but the advantage of the cost is difficult to maintain. The industry cluster competition advantage of the new and high-tach of senior stage is an innovative advantage, stemming from the innovation network of area, which is unable to imitate, existing for a long time.

初级阶段高新技术产业群竞争优势为成本优势，这种优势来源于产品的有效需求与供给增加、外部规模经济、外部范围经济、专业化分工及交易费用的减少，但成本优势难以持久：高级阶段高新技术产业群竞争优势为创新优势，来源于区域创新网络，创新优势无法模拟，可长期存在。

The possible reasons for the effects on cluster root formation and organic acid exudation by 6-BA are discussed.

对6-BA影响缺磷的白羽扇豆排根形成和有机酸分泌的可能机制进行了讨论。

Methods An unsupervised local and global features extraction method was adopted for the localization of facial features of frontal view face image. First, a threshold was used to segment the image into foreground and background, and the nose was localized by considering the symmetry of the face. Second, Harris operator was adopted to detect interest points in a rectangular area covering all the facial features, and then local maximum of the interest points were detected. And finally, Kmeans clustering method was used to cluster the points and obtain the facial features localization.

针对红外正面脸部图像，采用一种无监督的局部和全局的特征提取方法，首先通过阈值法区分出前景和背景，并根据面部特征对称性在前景中确定鼻区；然后在面部确定一个包含所有特征的矩形区域，利用Harris算子在该区域检测出角点，并找出这些点的局部最大值点；最后用Kmeans方法对这些点进行聚类。

This paper mainly adopts the factor analysis and cluster analysis in the multivariate statistical analysis.

本文主要运用多元统计分析中的因子分析和聚类分析方法。

The design of the cluster software is fault resilient and fail-safe.

群集软件的操作需要最少的人工干涉，且对日常工作没有影响。

A fast and parallel algorithm for mining association rules based on PC cluster was presented in this paper.

提出了一种在微机集群上实现的高效并行算法。

The high productivity and efficiency is supported by both fast matching algorithm and scalable fault-tolerant computer cluster software, which allows to perform fast parallel fingerprint matching, processes high number of identification requests and handles databases with practically unlimited size.

高生产力和效率是都支持快速匹配算法和可扩展的容错计算机群集软件，它允许执行快速并行的指纹匹配，过程高的数目鉴定的要求和处理数据库与可能性实际上是无限的大小。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。