查询词典 clustering

Activation of lymphocytes and liver regeneration both involve perinuclear clustering of lysosmes.

淋巴细胞的激活以及肝脏的再生都与溶酶体在核周的集聚有关。

A distributed secure clustering protocol is proposed, in which the secure network initialization, random number broadcast from the base station and one-way hash chain are used to achieve the resiliency against possible attacks including node personating, cluster-head occupying, malicious cluster-member recruiting and multiple cluster-membership attacks.

针对成簇协议所面临的各种安全威胁，提出了一种分布式安全成簇协议，通过网络安全初始化、可信基站的随机数广播和单向密钥链技术来有效地抵御节点伪装和簇首占据攻击、簇成员恶意征募攻击和多重簇成员身份攻击。

the hip knee joint replaces the technique the deep phlebothrombosis, are cause the fibrin, the red blood cell under each kind of factor function as well as not the isometric blood platelet and the white blood cell in the vein the clustering process, after is the hip knee joint replaces the technique, most common complication.

髋膝关节置换术后的深静脉血栓形成，是在各种因素作用下导致纤维蛋白、红细胞以及不等量的血小板和白细胞在静脉内形成凝块的过程，是髋膝关节置换术后最常见的并发症。

The grey clustering ; Systematic botany ; Photinia

灰色聚类；植物分类学；石楠属

Combined with additional sequences of 20 bivalves and 6 gastropods downloaded from NCBI (National Center of Biological Institution), molecular phylogenetic trees were constructed using 4 Polyplacophora species as outgroup. The result resolved by maximum-parsimony, maximum-likelihood and Bayes-induce methods were in congruent with each other, which indicated that all bivalves formed a monophyletic group clustering with its sister-group, Gastropod.

结果显示：所有双壳纲的种类构成了单系发生的进化枝，与其姐妹群腹足纲聚在一起；双壳纲可以分为异齿亚纲和翼形亚纲两大类群，异齿亚纲是单系发生，翼形亚纲的系统发生关系则随方法的不同有所区别，牡蛎科的位置是造成此差异的主要因素。

Though a lot of effort has been devoted such as spatial guided clustering analysis and posteriors refinement with spatial constrained method,the weights of different feature space and complexity introduced by using other techniques are still waiting to be resolved.

尽管已经出现了许多改进的方法，如采用进行空间约束的聚类方法和使用其它保持空间紧致性的方法进行结果修正等，不过不同空间划分之间的协调、新的参数复杂性和算法复杂性反而使得聚类分析技术失去其简单有效的优势。

Syndromic surveillance is the utillization of data that large amount of cases with prodromal phase symptoms and performs spatial-temporal clustering analysis through information technology for rapidly detecting disease outbreaks with visualization and aberration detection theory so that a further epidemiology investigation and disease control procedure could be taken in its very early time.

症候群侦测系统系指透过资讯科技，搜集大量的临床前期症状，利用时间－空间聚集(spatial-temporal clustering analysis)分析处理后，结合视觉化资讯呈现和异常侦测理论，提供疫情调查人员即时掌握各项症候群/疾病的流行现况，并依此主动进行疫情调查工作，采取适当的防疫因应措施。

Junction area; environment geology; protogenic geological environment protogenic geological environment; grey clustering method; environment geology quantity divise

论文导师王运生，论文学位硕士，论文专业环境工程论文单位成都理工大学，点击次数 1，论文页数 86页File Size4825K

The main work and result in this paper are described as the following: Aiming at the defects like slow-speed and low-efficiency of the traditionalhierarchical clustering method in pattern-recognition, this paper provides an improvedclustering method by the quartation in the particular image-processing field.

本文的主要工作和成果如下：针对模式识别中传统的谱系聚类法聚类速度慢、效率过于低下的缺点，提出一种在特定图像领域中利用四叉树分割进行改进的聚类方法。

The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.

根据交通流量数据分布的特征，提出基于k-means的二次聚类方法，对交通流量在流量大小和时间上进行模式划分，进而对各个交通流模式进行基于BP神经网络的描述和预测，从而提高模型对流量预测的精度； 2）根据流量/时间占有率倒&V&字形曲线分布模型，提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法，实际应用表明该方法能够有效识别异常数据，然后根据移动平均算法对异常数据进行修正； 3）基于序列相关性分析，分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析，选择相似性流量序列，作为辅助序列提供其他没有检测器路口的流量估计； 4）设计和实现了基于SOA（Service-Oriented Achitecture）的高性能、可扩展的智能交通数据挖掘系统UTDD，该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口，实现数据挖掘应用的统一管理和调用，最后在UTDD上建立了基于路口流量预测的应用模型。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。