查询词典 intersection graph

Using the quaternion expansion of the shifting number ,we determined the fractal structure of intersection of sierpinski footcloth with their translates, and set up the fundamental properties of Box dimensions of those intersection sets.

研究Sierpinski地毯平移交集的计盒维数，发现它与平移长度有关，利用移位t的四进展开式，给出一递归集，得到Sierpinski地毯平移交集的分形结构，并建立这些交集计盒维数的基本性质。

Computing any point of intersection of the polytope and the ellipsoid is used in the improved algorithm, instead of that of the intersection of two ellipsoids in ellipsoidal techniques, for calculating the solutions of some initial points where ellipsoidal techniques cannot ensure the existence of the solutions.

对某些采用椭球方法无法求取控制量的解的初始点，在改进算法中，采用了椭球与多面体任意交点求解的算法，代替了椭球方法中用椭球交集求解算法计算控制量。

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。

In order to analyze the factors that affect the severity of traffic accidents,the cumulative Logistic model has been established on the basis of investigating the data about the traffic accident at unsignalized three-phase intersection in the peripheral area around Beijing. It can provide scientific reference for preventing the serious traffic accident at the intersection.

为了分析交叉口交通事故严重程度的影响因素，在对北京周边无信号三路交叉口交通事故数据调查的基础上，建立的累积Logistic模型，可为我国交叉口严重交通事故的预防提供科学依据。

On the ground of analysis of some flaws of recent studies on unsignalized intersection,the paper bases on the gap acceptance theory ,sets up the waiting delay formula of mixed traffic flow composed of two representative types of vehicles at an unsignalized intersection,then analyzes the relation be.

本文在分析了目前无信号交叉口延误研究方法存在某些不足的基础之上，以可接受间隙理论为基础，建立了无信号交叉口大小两种车型构成的次要车流的等待延误公式。

The subject of the article is three-phase unsignalized intersection control in highway system. The correlation analysis and AIC principle analysis are applied to building the crash prediction model of three-phase unsignalized intersection in the plain based on the probability model.

以三路无信号交叉口为研究对象，采用相关分析与AIC原则分析方法，建立基于概率模型的平原区无信号三路交叉口事故预测模型。

The strategy first determined the type of the node by broadcast information of beacon, the ordinary node forward the packet by greedy method, then forecasting node predict the next node whether to go through the intersection node, and while the intersection node decisioned the direction of routing strategy.

该策略通过信标的广播信息确定节点的类型，是属于普通节点、预测节点或者十字路口节点；然后再判断采取什么样的方式转发数据包，普通节点采取贪婪转发的方式，预测节点采取受限的贪婪转发，而十字路口节点决定路由策略的方向。

The system consists of two sub-systems: the Expert System of Signalized Intersection and the Simulation System of Signalized Intersection.

信号交叉口优化专家系统开创了道路交通管理研究的新领域，为充分发挥交叉口的时、空资源提供了新的理论框架。

The algorithm firstly usd space decomposition method to identify potential regional intersection and then used bounding volume boxes to locate the intersection triangles and the exact points.

该算法首先用空间剖分法找出潜在的相交区域，然后用包围盒求得碰撞的三角面片对和精确的碰撞点。

Applying the concept of star dual, which is introduced by Moszynska, we establish some inequalities for star duals of intersection bodies. Hence, we present a new kind of duality between intersection bodies and projection bodies.

采用Moszynska引入的星对偶的概念，我们在第五章中研究相交体的星对偶体，从而更进一步地揭示了投影体和相交体两者之间的对偶关系；引入了对偶混合体的概念。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。