索引系數 的英文怎麼說
中文拼音 [suǒyǐnxìshǔ]
索引系數
英文
kappamax concordance coefficient- 索 : Ⅰ名詞1 (大繩子; 大鏈子) a large rope 2 (姓氏) a surname Ⅱ動詞1 (搜尋; 尋找) search 2 (要; ...
- 引 : Ⅰ動詞1 (牽引; 拉) draw; stretch 2 (引導) lead; guide 3 (離開) leave 4 (伸著) stretch 5 (...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 索引 : index; indexing; key; repertory; subscript; concordance
- 系數 : [數學] coefficient; ratio; modulus; quotient; factor
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Report ucb csd - 01 - 1141, university of california, berkeley, usa, 2001. 8 cuenca - acuna f m, nguyen t d. text - based content search and retrieval in ad hoc p2p communities
本文針對上述問題,提出對等數據系統中的摘要索引結構及建立在此基礎上的基於內容的近似查詢處理方法。It implements web crawling through distributed technology, and builds index database through accidence analyzing chinese characters separating unuseful words deleting etyma extracting index words selecting and lexicon. the level system uses new model of web accessing and level computation to build web level system so that the requirement for computer resources is greatly reduced
該搜索引擎使用分散式技術實現網頁獲取模塊;通過詞法分析、中文分詞、無用詞匯刪除、詞干提取、索引詞條選擇和詞典等技術建立索引數據庫;該搜索引擎的級別系統使用了新的網路訪問模型和級別計算模型,大大降低了搜索引擎對于計算機資源的要求。Document similarity search is to find documents similar to a given query document and return a ranked list of similar documents to users, which is widely used in many text and web systems, such as digital library, search engine, etc. traditional retrieval models, including the okapi s bm25 model and the smart s vector space model with length normalization, could handle this problem to some extent by taking the query document as a long query
文檔相似搜索指從文檔集中檢索與給定查詢文檔相似的文檔。對于給定的查詢文檔,我們期望文檔相似搜索系統能夠返回一個按相似度排序的相似文檔列表。文檔相似搜索技術已經被廣泛應用到電子圖書館,搜索引擎等系統中,例如citeseer . ist科學文獻數字圖書館的相似文獻推薦功能, google的相似網頁查詢功能等。The system stores spatial data and characteristic data into central database, and provides services to users in server / client mode. as the research emphases of this thesis, several key sub - systems are designed and realized. the digital map input and maintenance subsystem performs format conversion, editing and updating of spatial data ; the rail - track video playing subsystem uses video recording as reference data, then plays, inquires and traces the corresponding frames in synchronous to the scaled mileage, realizing the query of the active picture frames ; the digital map query subsystem fulfills the map query, preview and spelling of digital map orthograph
其中,地形圖輸入與維護實現了數字地圖的格式轉換、編輯處理以及空間數據的更新操作,解決了不同格式空間數據的互相轉換問題;線路錄象播放將線路錄像數據作為系統的一種索引數據,活動影像的畫面與里程相對應,實現了基於線路錄像的播放、查詢和檢索的功能,實現了基於活動畫面的查詢檢索功能;數字地圖子系統完成了圖形查詢、數字地圖與線路正射圖像瀏覽、圖幅拼接等功能。Whereas the programmer approaches the problem from the point of view of the application performance, a dba can approach the problem with an understanding of the database itself, and can offer advice and suggestions for the database layout, arrangement of tables and indexes, and effective use of informix and system resources, including data fragmentation, pdq priority, cpu time, memory utilization and data storage
程序員是從應用程序性能的角度來考慮問題的,而dba考慮問題時理解了數據庫本身,從而可以對數據庫的布局、表和索引的安排,以及informix和系統資源(包括數據分段、 pdq優先級、 cpu時間、內存利用率和數據存儲)的有效使用提出意見和建議。Through the implementing of kernel level file and cache mechanism at the client side, this newly proposed distributed network file system provides seamless network file access and reduces the performance decline caused by network transmission. utilizing the concept of logic block server, it provides the reliable data block storage and implements redundant storage capacity. utilizing the concept of the index server, it provide s the cost of the greatly for server and network during data access process and realizes the computing with balancing capacity
在客戶端通過實現內核級文件的調用和緩沖機制,實現了文件的無縫網路存取,並減少由於網路傳輸帶來的性能下降的影響;利用邏輯塊服務器實現邏輯塊的冗餘存取,實現數據塊的安全存放;利用索引服務器進行負載均衡計算,實現資料存取的較低網路和服務器開銷;利用索引服務器實現服務器組的零管理,使該系統具有高效性、穩定性和可伸縮性。The first chapter of this paper analyses the background and meaning of the establishment of disciplines navigation system for network resources. with the rapid increase of network academic information resource, search engine as the web primary retrieval tool can " t meet the retrieval request of specialty information resources ; traditional cataloging techniques can " t meet the needs of magnanimous network academic resources ; most of the " navigation of networks " established by libraries are the simple link of websites. it lacks the necessary revelation and evaluation of resources content
本文在第1章分析了網路資源學科導航系統建設的背景和意義:隨著網路學術信息資源的飛速增長,作為web主流檢索工具的搜索引擎難以高效、準確、全面地完成專業信息資源的檢索請求;傳統編目技術也無力承擔海量網路學術資源編目的需求;圖書館所建的「網海導航」多數為對網站(頁)的鏈接,缺乏對資源內容必要的揭示與評價;國內對網路學術資源標準化的研究也相對滯後於國外。In view of the preliminary study and small scales application, the flat file system is adapted to build a spatial metadata database. we design the interfaces of a metadata engine. according to the characteristics of the user ' s request for metadata, we give a solution on how to create index on xml document collection and to search those metadata records
從預研和小型系統應用的目的出發,系統採用平面文件系統來建立空間元數據庫,論文給出了空間元數據庫管理引擎的介面設計,並根據對元數據查詢特點的分析,詳細闡述了對xml文檔型空間元數據庫建立索引和執行查詢的方式和策略。In systems with vsam, a named structure consisting of a group of related components, forexample, a data component with its index component
在具有虛擬存儲訪問法( vsam )的系統中,由一組相關部件組成的一種命名結構,例如帶有其索引部件的數據部件。Unlike file systems, db2 content manager uses a powerful relational database to provide indexed search, security, and granular access control at the individual content item level
與文件系統不同, db2 content manager使用強大的關系數據庫在單獨內容條目的層次上提供索引檢索、安全性和小粒度的訪問控制。It also enables them to access information on various databases, including the enhanced police operational nominal index computer system eponics for wanted or missing person checks ; transport department s driver licence integrated data system valid for vehicle information and stolen vehicle checks ; and immigration department s registration of persons system for forged id card checks
警務人員亦可利用手提無線電通訊機和流動數據終端機登入多個數據庫,如在第二代警務處姓名索引電腦系統中檢索通緝或失蹤人士資料運輸署的車輛牌照及駕駛執照綜合資料電腦系統中檢索失車資料,以及入境事務處的人事登記系統中檢索偽造身份證資料。Spatio - temporal databases manage spatial objects that change positions and / or extents over time, spatio - temporal index method is one of the key technologies in spatio - temporal database management system
時空數據庫是存儲、管理隨時間變化,其空間位置和/或范圍也發生變化的時空對象的數據庫系統,時空索引技術是時空數據庫管理系統的關鍵技術之一。This system makes people fell convenient in looking for data, try my best to our environment protection. the following problems and related solutions are given in this paper : data structure suitable for web computing multi - user access and concurrent control mechanism in webgis network protocol and intelligent information agent of spatial information spatial information security in web computing environment web integration strategy of spatial information based on metadata architecture of webgis at last, the development trend of webgis is discussed
通過論文工作提出了以下幾個問題並給出了相應的解決方案適合web計算的數據模型webgis中的多用戶訪問與並發控制機制空間信息的網路計算策略與實施方案及關鍵演算法空間信息的網路傳輸協議與智能空間信息代理web計算環境下的空間信息安全性問題基於metadata的空間信息web集成方案與智能空間搜索引擎webgis體系結構最後,論文對webgis發展趨勢進行了探討。On the basis of the features and fabric of internet data, a new internet data model called tree - vine symbiosis model ( tvm ) is proposed. this model provides precise and flexible description of internet hetarogeneous data. several operations are defined including and, subtract, relation, paste, cut and select, which make search engines analyze, process and query internet resource more precisely and flexibly
在此基礎之上,提出了一種新的網際網路數據模型? ?樹藤共生模型,該模型能夠較好地的描述異質、異構的網際網路數據資源,並且定義了對象的並、差、關系投影、粘帖、剪切、選擇等操作,這些運算操作使得搜索引擎對網際網路資源進行分析、整理、查詢時具有更高的準確性和更大的靈活性。This system is set up on the existing search engine foundations through web services " technology, has solved variety and non - structural web data with xml technology, has formed web multi - level data base, and constructed the system structure in high performance of data warehouse, utilized midas technology to form the high - performance index storehouse structure, has remedied the deficiency of search engines at coverage, accuracy etc, and improved efficiency of information retrieval
該系統通過webservices技術,建立在現有搜索引擎基礎之上,以xml技術解決了多樣性和非結構性的web數據轉換,形成了web多層次數據庫,利用了web挖掘面向結構化或半結構化數據的智能化數據抽取和知識發現過程,並且構造了數據倉庫的高性能查詢體系結構? hpqs ,利用midas技術形成了高性能索引庫結構,彌補了當前搜索引擎在覆蓋范圍、準確率、復雜查詢語言的使用和結果表現方式等方面的不足,改善了信息檢索的效率。Data mining is the beginning of knowledge management system, it provides knowledge for the knowledge management ; searching engine provides a tool for knowledge users to search knowledge and rapidly get the knowledge that they need ; knowledge database is the base of knowledge management system, it stores knowledge from data mining and provides it to searching engine. 3
數據挖掘是知識管理系統的開始,它為知識管理系統提供了知識的來源;搜索引擎為知識使用者提供了知識搜索的工具,使知識使用者能夠快速獲得所需要的知識;知識庫是知識管理系統的基礎,它為數據挖掘獲取的知識提供了存儲空間也為搜索引擎提供了知識的來源。The sql server database engine and tools for managing relational and xml data, replication, and full - text search
Sql server數據庫引擎和用於管理關系數據和xml數據、復制以及全文搜索的工具。The thesis designs an xml engine and throws out the relation among xml engine, xml database and xml application system. xml engine contains three parts : storage subsystem, index subsystem and query subsystem
本文設計了一個xml引擎框架,研究了xml引擎與xml數據庫、 xml應用系統之間的關系,以及xml引擎存儲系統、索引系統和查詢系統的各種功能。The pioneering standardization for learning objects was developed by the alliance of remote instructional authoring and distribution networks for europe ariadne where educational metadata and learning object indexing systems were developed in the mid 90s
學習對象的標準化先驅,是由歐洲遠程教育創作和分散式網路聯盟( alliance of remote instructional authoring and distribution networks for europe , ariadne )開發的, 90年代中期它完成了教育元數據和學習對象索引系統。The first generation spatial analysis database system, sadbs, uses " realms " as expression base of spatial data. it adopts discrete integer coordinate system to solve topological error in spatial database. it also uses multi - index data organization and plane - sweep algorithm, which improve the performance of spatial analysis operations
第一代空間分析數據庫系統sadbs使用realms作為空間數據的表示基礎,它利用離散化的整數坐標系統,解決了空間數據庫的拓撲誤差問題;使用多索引的數據組織方法,引入平面掃描演算法,提高了空間分析操作的性能。分享友人