main data path 中文意思是什麼
main data path
解釋
主數據通路-
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。 -
The main contents are as follows : ( 1 ) the measurement data processing theory and the design scheme of gps tunnel control network are introduced ; a wavelet analysis technique that can efficiently reduces the multi - path effects caused by tall buildings is presented ; finally, the factor sources of transfixions errors of underground tunnel and limit error distribution method which depends on unequal influence principle are proposed
具體研究內容如下： （ 1 ）研究了遂洞gps測控網的布設、數據處理理論；探討和研究了構築物反射等產生的多路徑效應的影響及應用小波分析理論有效減弱gps接收信號的多路徑噪聲的方法；討論了地下隧洞貫通的誤差來源及貫通誤差的優化配賦方法。 -
This paper divides the web usage mining process into three main parts : data collecting consists of the three server logs - access, referer, and agent, the html files the make up the site, and registration data ; data preprocessing, includes data cleaning, user identification, session identification, path completion and transaction identification ; data analysis consists of mining frequent access paths and association rule. thinking about the amount of hits on homepage, this paper improves the algorithm of finding frequent items
並結合網頁特點，考慮到主頁的點擊率的影響，對生成頻繁訪問瀏覽頁的演算法做了改進；在web使用挖掘的基礎上引入部分web結構挖掘，對挖掘瀏覽頁的關聯規則做了補充，在web結構挖掘基礎上挖掘出的相關瀏覽頁也推薦給用戶，在一定程度上提高了關聯規則的精確度。
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