Based on this kind of relations between the topological structures and the content distributions we study the web modelling, community identification and some related application problems in detail : first, after some existed characteristics of the web topology are verified, some new characteristics are discovered : the high clustering property in micro - topology ( high average gathering coefficient ), the obvious mapping relation between the topological struture and the content in micro - level 、 linear irrelevant between the degree distribution of network nodes and the relative degree distribution of contents etc. then after analysis the topology of the complex network and the network modeling, the muti - scale determinism is proposed, especially for the information network a web evolvement model ( prcp model ) that fused the node authority and the node correlation is proposed. the model deduction, evolving learning verification and large scale experiment proof indicate that the model can explain the micro - topology centralizing phenomena, can imitate the mapping relation between the network connecting distribution and network content relative distribution and also can predict the mapping relation between the topology clustering and content clustering
本文在詳細觀察了web網路的
拓撲結構特徵以及
拓撲結構與內容分佈相互關系的基礎上,以信息網路的物理連接
拓撲結構與節點內容相關度分佈之間的相互關系為主線,從網路特徵、網路建模、社區分析及相關應用方面問題進行了深入細致
地探討:首先在驗證了前人提出的web網路
拓撲結構特徵基礎上,進一步發現了信息網路所具有的一些新特徵: 1 )網路微觀顆粒度的
拓撲結構聚團與內容聚團存在明顯的映射關系,具體包括節點之間的物理連邊概率與節點之間的內容相關度成指數比例關系、節點形成三角形
拓撲結構的概率與節點內容相關緊密程度之間同樣具有一種指數比例關系; 2 )網路節點連接度整體分佈與節點內容相關度整體分佈是線性無關的; 3 )網路微觀
拓撲結構中的存在很強的集聚性(平均聚團系數很高) 。
Furthermore, this paper introduces three different network architectures which are single system, bastion firewall screening subnet and the net work with dmz ( demilitarized zone ) defending network, elaboratess theories of nat ( network address translation ) and dmz ( demilitarized zone ), with the practical examples based on dns ( domain name service )
文中針對單系統、堡壘防火墻屏蔽子網、帶dmz (非軍事化區)防禦帶三種不同網路
拓撲結構加以說明,闡述nat (網路
地址轉換)的原理和dmz工作原理以及它們的相應網路
拓撲結構。同時給出基於dns服務的相關腳本。
Meanwhile, on the fundamental parameters that can be acquired in the primary design stage of a new car or a car which it has put in used, this paper utilizes adams / car to establishes the simulation parametric modeling of a suspension according the topology structure of macpherson front suspension system, in this model, we considered the front suspension system, steering system and the tire model in detail, and the bushing effect was included in this study, and it is very convenience to carry out kinetics / elastic kinetics simulation. all kind of the suspension parameters on handling and stability and automobile comfort were analyzed
Adams的實體數值懸架運動學模擬分析為懸架的設計開發提供了一種先進高效快捷的方法。與此同時,本文依據麥弗遜式前懸架的
拓撲關系,利用設計階段的新車或者是正在使用的汽車的所能取得的基本參數,藉助adams car建立了懸架參數化模型,在這個模型里,考慮了轉向系統、輪胎、襯套等因數,因此可以方便
地進行懸架運動學彈性運動學分析。
Main technic of giss webgiso thus function modules architecture and network topological structure are confirmed webgis system implements the basic function of electronical map, such as map zoonu pan, and the abundant query of geograph and database by using maplnfo mapxtreme for java as map server and jsp., java technico this system also can implement the routing of linesx analysing of buffer and so on0 this paper advances storage model of roads and pipelines topology data, efficiently solves the maintenace problem of network topology data of webgis and implements the shortest path algorathm based on webgis by improving it0 the system has better opening by suppling database interface of map ? the system has perfect on - line help and user forum and favorable interfaces and implementation of this system makes fundament for the further research of webgiso
本系統利用mapinfomapxtremeforjava作為
地圖服務器,採用jsp和java技術,實現了基於webgis的電子
地圖的縮放、漫遊等基本功能,並具有豐富的圖文定位查詢功能;實現線路路由、緩沖區分析等輔助決策功能;構建了道路管線網路
拓撲數據的存儲模型,有效
地解決了基於webgis的網路
拓撲數據的維護問題;對dijkstra演算法進行了一些改進,實現了基於webgis的最短路徑演算法;本系統提供了電子
地圖數據庫介面,使本系統具有很好的開放性和通用性; webgis系統軟體具有完善的在線幫助和用戶交流論壇,人機界面友好。
Techniques for determining the geographic location of ip addresses in isp topology measurement
Isp
拓撲結構測量中ip
地址定位技術研究
Besides documents and numbers, processed data using the computer in electrical industry includes a large amount of graphic information such as equipment information and topology structure depending on geographic maps
而電力行業中應用計算機處理的數據,除了文字和數字之外,還包括大量依附於
地形圖的設備信息和
拓撲結構等圖形信息。
( 4 ) designing a convenient and practical visulization method for checking topologic relation and geographic name ; modifying and reorganizing topologically the wrongly topologic information
( 4 )設計出一種方便、實用的
拓撲關系,
地名指針的可視化檢查方法,對錯誤的
拓撲信息可修改並進行
拓撲重組。
The main content that this paper studied inludes : development of gis and its application in the power industry ; gis data model analysis, the expression and operation of the distribution data in electric gis ; the structure of electric gis database and design, coding methods of data ; topological analysis of the distribution network ; gis and scada integration, mainly researches into scada and gis interface, discusses purpose and benefit for integration of them by analysis of scada system and its database used by to haikou local dispach
Gis數據模型分析,電力gis中配電數據的表達和操作;電力gis數據庫的結構和設計、數據的編碼方法。配電網路
拓撲分析。 gis與scada集成,主要研究scada與gis介面,並針對海口
地調的scada系統及其數據庫,討論兩個系統集成的目的和益處,對兩個系統的連接提出實現技術。
Through analyzing several current - prevailing geography information types and gis data formats, this paper proposes a both user - oriented and multi - resource - heterogeneous - information - system - oriented scheme that describes the urban space semantic information entity based on ontology. moreover, ontology - based topology and semantic relationship of the urban space entity are provided. this paper also presents a synthetic query model of ontology - driven space information and a methodology of semantic integration
本文在分析了國內外流行的gis系統的
地理信息類型和數據格式的基礎上,提出基於本體論的,面向用戶應用、面向多源異構信息系統的城市空間語義信息實體的描述方法,提出基於本體的城市空間實體
拓撲關系及語義關系,確立了本體驅動的空間信息的綜合查詢模型,以及語義信息集成方法。
A novel topological map is proposed in this paper, and its nodes are represented with the visual scale - invariant features and the beam features of the laser range finder
摘要提出了一種新型拓撲地圖;該地圖用激光的扇區特徵和視覺的比例不變特徵來聯合表示節點。