spatial query造句
例句與造句
- Integrated processing strategies for spatial query and path search
空間查詢和路徑搜索的集成處理策略 - Broadcast - based spatial queries
基于廣播的空間數(shù)據(jù)查詢 - Spatial query optimization
空間查詢優(yōu)化 - Spatial index is a indispensable part of spatial database , and can dramatically improve efficiency when doing a spatial query
空間索引作為空間數(shù)據(jù)庫(kù)中的重要組成部分，可以加快對(duì)空間對(duì)象的檢索。 - In this paper , the broadcast - based spatial query processing methods are presented for the location - based services
在這種無(wú)線計(jì)算環(huán)境下，數(shù)據(jù)廣播方式是發(fā)布空間數(shù)據(jù)對(duì)象支持空間查詢處理的有效方法。 - It's difficult to find spatial query in a sentence. 用spatial query造句挺難的
- In this paper , we focus on the structure of r - tree and bucketfile , and the algorithm of three kinds of spatial queries
本文重點(diǎn)討論了r樹(shù)、 bucketfile兩種空間索引的基本結(jié)構(gòu)及三類空間查詢?cè)谄渖系乃惴▽?shí)現(xiàn)。 - We summarize that spatial index system should provides three kinds of spatial query , they are , spatial range query , nearest neighbor query , spatial join query
本文總結(jié)出空間索引系統(tǒng)應(yīng)提供的三類空間查詢：空間范圍查詢、最近鄰居查詢、空間連接查詢。 - This dissertation addresses the geo - spatial data service integration and distributed spatial query issues under web environment from the points of spatial database and information retrieval
論文從空間數(shù)據(jù)庫(kù)和信息檢索的角度研究了web環(huán)境下地理空間數(shù)據(jù)服務(wù)集成和分布式查詢問(wèn)題。 - 17 theodoridis y , stefanakis e , sellis t k . efficient cost models for spatial queries using r - trees . tkde , 2000 , 12 : 19 - 32 . 18 brinkhoff t . a framework for generating network - based moving objects
第二，基于這個(gè)預(yù)測(cè)模型，我們提出了一個(gè)新的存取方法anr樹(shù)adaptive network r - tree ，它可以支持高效的預(yù)測(cè)查詢，并且適應(yīng)頻繁的更新。 - The first international conference on mobile and ubiquitous systems : networking and services , boston , massachusetts , 2004 , pp . 22 - 26 . 9 zheng b , lee w c , lee d l . spatial queries in wireless broadcast systems . wireless networks , 2004 , 10 : 723 - 736
在該機(jī)制中，服務(wù)器廣播的空間數(shù)據(jù)對(duì)象信息包括數(shù)據(jù)對(duì)象的標(biāo)識(shí)以及其位置坐標(biāo)，在組織廣播數(shù)據(jù)時(shí)，數(shù)據(jù)對(duì)象按照其坐標(biāo)位置進(jìn)行排序，因此廣播數(shù)據(jù)序列中的數(shù)據(jù)對(duì)象是依據(jù)其坐標(biāo)有序的。 - Because of its strong spatial query function and its support for various client platforms , we chose arcims as the webgis platform . the system uses the popular asp ( active server page ) method and the most - used webgis software - arcims to generate , release and transfer the disaster information
3 、對(duì)國(guó)外多個(gè)基于web的地圖應(yīng)用系統(tǒng)(國(guó)外有代表性的webgis網(wǎng)站)的瀏覽功能、使用方法、地圖顯示、功能、交互性、定制功能、特殊功能等幾個(gè)方面做了比較。 - Based on lots of advanced results of computer graphics , modem mathematics , computer science and topography , etc . this thesis discussed the theory , techniques and arithmetic of three - dimensional terrain visualization in three - dimensional gis , such as terrain modeling techniques for digital elevation model , basic theory of three - dimensional terrain visualization , dynamical three - dimensional terrain display with simplified model , and spatial query methods within three - dimensional terrain maps . among these techniques , combined with concrete requirements for visualization in flood control decision - making system , this thesis emphasized on the following aspects : 1
本文在吸取了計(jì)算機(jī)圖形學(xué)、現(xiàn)代數(shù)學(xué)、計(jì)算機(jī)科學(xué)、測(cè)繪學(xué)等眾多領(lǐng)域大量先進(jìn)理論成果的基礎(chǔ)上，系統(tǒng)的論述了三維gis中地形三維可視化的理論、技術(shù)和算法，包括數(shù)字高程模型的地形表面建模技術(shù)、地形三維可視化的基本理論、基于模型簡(jiǎn)化的地形三維動(dòng)態(tài)顯示技術(shù)以及基于三維地形圖的空間查詢技術(shù)。 - While the application of the component gis technology in hydrogeology can build the hydrogeologic profile automatically and rapidly on the basic of special orderliness of hydrogeologic stratum . on the other hand , supported by gis , the system has superiority in spatial query , edition of profile and dynamic topological rebuilding
而組件式gis技術(shù)在水文地質(zhì)中的應(yīng)用，一方面可以利用組件式gis固有的特點(diǎn)，根據(jù)水文地質(zhì)層的空間分布規(guī)律快速方便的自動(dòng)構(gòu)建水文地質(zhì)剖面，另一方面，由于系統(tǒng)以gis技術(shù)為支撐，因此，它在空間查詢，剖面編輯、動(dòng)態(tài)拓?fù)渲亟ǚ矫婢哂歇?dú)特的優(yōu)勢(shì)。 - The whole work in this paper is listed as followed : firstly , this paper set forth on management of spatial data and general mining process in spatial data mining ; secondly , the deficiency of gis spatial query on the database and the necessity of data ming are referred to and the source data is preprocessed ; thirdly , the single - dimension table is discussed including three parts : the theory of rough is talked about and is used to analyze the preprocessed data . also , the data is disposed by programming ; the disadvantages of the apriori algorithm are referred to . based on the original algorithm , advaced _ apriori algorithm is put forward to by perfecting the apriori algorithm
對(duì)rough集理論算法思想進(jìn)行了論述，并編程實(shí)現(xiàn)了對(duì)gis屬性數(shù)據(jù)的處理；討論關(guān)聯(lián)規(guī)則，指出了apriori算法的不足，在原算法的基礎(chǔ)上改進(jìn)了算法；與原算法對(duì)比， advanced _ apriori算法在算法復(fù)雜度(空間復(fù)雜度與時(shí)間復(fù)雜度)上具有很大的優(yōu)越性；給出這三種方法( rough集理論、 apriori算法、 advanced _ apriori算法)在算法復(fù)雜度(時(shí)間復(fù)雜度和空間復(fù)雜度)的比較，并對(duì)優(yōu)劣進(jìn)行評(píng)定； 4 、多維表的處理：提出空間數(shù)據(jù)挖掘模型，采用sqlserver建立星形數(shù)據(jù)模式，以此建立空間數(shù)據(jù)立方體，采用dbminer進(jìn)行數(shù)據(jù)挖掘； 5 、最后是本文的結(jié)論和展望；對(duì)前面各章的總結(jié)，得出幾點(diǎn)結(jié)論，并指出需要進(jìn)一步探討的問(wèn)題。 - Give the data structure of spatial data and categorical data , on which introduced object organizing and managing theory in oodb and template technology including data template and method template , mode oo data access model and spatial query and spatial analysis model
摘要給出了空間數(shù)據(jù)和屬性數(shù)據(jù)的數(shù)據(jù)結(jié)構(gòu)，在此基礎(chǔ)上采用面向?qū)ο髷?shù)據(jù)庫(kù)( oodb )技術(shù)中的對(duì)象組織和管理思想，采用數(shù)據(jù)模板和方法模板技術(shù)建立面向?qū)ο蟮臄?shù)據(jù)訪問(wèn)模型，并在此基礎(chǔ)上建立了一種面向?qū)ο蟮目臻g查詢和空間分析模型。
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