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geographical

  • Local Lucene ==================== Provide geographical based searching to lucene in an efficent ma

    Local Lucene ==================== Provide geographical based searching to lucene in an efficent mannor Contents * Compiling from Source * Using local lucene Author: Patrick O Leary email: pjaol@pjaol.com A white paper on local lucenes usage is available http://www.nsshutdown.com/projects/lucene/whitepaper/locallucene.htm

    標(biāo)簽: geographical searching efficent Provide

    上傳時(shí)間: 2013-12-21

    上傳用戶:lepoke

  • Designing and implementing a database of geographical information pertaining to the United States,

    Designing and implementing a database of geographical information pertaining to the United States, Canada, and Mexico

    標(biāo)簽: implementing geographical information pertaining

    上傳時(shí)間: 2014-01-26

    上傳用戶:woshini123456

  • 地理信息系統(tǒng)簡稱GIS(geographical Information System)

    地理信息系統(tǒng)簡稱GIS(geographical Information System),是六十年代開始迅速 發(fā)展起來的地理學(xué)研究新技術(shù),是多種學(xué)科交叉的產(chǎn)物。地理信息系統(tǒng)是以地理空間數(shù)據(jù)庫為基礎(chǔ),采用地理模型分析方法,適時(shí)提供多種空間的和動(dòng)態(tài)的地理信息。即采集編輯、存儲(chǔ)管理、處理分析、傳輸?shù)乩頂?shù)據(jù),以多種形式輸出數(shù)據(jù)和圖形產(chǎn)品,為地理研究和地理決策服務(wù)的計(jì)算機(jī)技術(shù)系統(tǒng)。其具有以下三方面特征:

    標(biāo)簽: geographical Information System GIS

    上傳時(shí)間: 2017-05-07

    上傳用戶:181992417

  • Cognitive+Radio+Networks

    According to the statistics of the Federal Communications Commission (FCC), temporal and geographical variations in the utilization of the as- signed spectrum range from 15% to 85%. The limited available radio spec- trum and the inefficiency in spectrum usage necessitate a new commu- nication paradigm to exploit the existing spectrum dynamically. 

    標(biāo)簽: Cognitive Radio Networks

    上傳時(shí)間: 2020-05-26

    上傳用戶:shancjb

  • Radio Resource Management

    In a cellular communication system, a service area or a geographical region is divided into a number of cells, and each cell is served by an infrastructure element called the base station through a radio interface. Management of radio interface related resources is a critical design component in cellular communications. 

    標(biāo)簽: Management Resource Radio

    上傳時(shí)間: 2020-06-01

    上傳用戶:shancjb

  • Internet+Data+Centers

    With the proliferation of cloud computing and Internet online services, more and more data and computation are migrated to geographical distributed Internet data centers (IDCs), which can provide reliability, management, and cost benefits. However, IDC operators encounter several major problems in IDC operations, such as huge energy consumption and energy cost, and high carbon emission. To deal with the above problems, IDC operators have to efficiently manage the way of energy consumption and energy supply. Considering the potential of smart grid, we focus on the energy management of IDCs in smart grid from several perspectives, i.e., power outage, carbon emission, heterogeneous service delay guarantees, and operation risk.

    標(biāo)簽: Internet Centers Data

    上傳時(shí)間: 2020-06-07

    上傳用戶:shancjb

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