需要金幣： 1000 個金幣 |
資料包括：完整論文，開題報告，任務(wù)書 |  |
 |
| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：14934 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:關(guān)系型數(shù)據(jù)庫（RDBS）和文本型數(shù)據(jù)庫（TDBS）是當(dāng)今應(yīng)用最廣泛的數(shù)據(jù)庫管理系統(tǒng)。前者適用于能用表格處理的，即比較規(guī)范且不會太長的數(shù)據(jù)；后者擅長處理那些規(guī)格不一，結(jié)構(gòu)不定、類型各異、長度參差的所謂非結(jié)構(gòu)化數(shù)據(jù)。隨著互聯(lián)網(wǎng)快速發(fā)展和OA系統(tǒng)普及，非結(jié)構(gòu)化數(shù)據(jù)呈爆炸性增長，目前80%以上的業(yè)務(wù)屬于非結(jié)構(gòu)化數(shù)據(jù)處理。面對非結(jié)構(gòu)化數(shù)據(jù)，用關(guān)系型數(shù)據(jù)庫處理力不從心。TRIP（Text Retrieval Information Processing）是專門面向非結(jié)構(gòu)化數(shù)據(jù)而設(shè)計、開發(fā)的，以內(nèi)容的快速查找為目標(biāo)的大型檔案數(shù)據(jù)庫管理系統(tǒng)。它具有不限記錄長短、不拘字段個數(shù)都能快速存取海量數(shù)據(jù)以及運行穩(wěn)定、易于使用和能夠存儲各種類型數(shù)據(jù)等特點，20多年前已享譽(yù)歐、美。但因多種原因不像關(guān)系型數(shù)據(jù)庫這類結(jié)構(gòu)化的表格系統(tǒng)那樣普及。利用TRIP系統(tǒng)作為工具平臺，進(jìn)行應(yīng)用開發(fā)，在處理非結(jié)構(gòu)化數(shù)據(jù)普遍面臨大量文、圖、音、視信息管理中，具有明顯的優(yōu)勢。 本次畢業(yè)設(shè)計就是以北京聯(lián)合大學(xué)應(yīng)用文科綜合實驗教學(xué)中心多媒體資源共享平臺為背景，研究并初步實現(xiàn)基于TRIP的磁盤文件資源檢索系統(tǒng)設(shè)計，實現(xiàn)對用戶本地磁盤文件整理、歸檔和檢索機(jī)制。 本論文研究與設(shè)計主要分為三部分，第一部分介紹項目研究的背景與意義及目前國內(nèi)外研究現(xiàn)狀；第二部分介紹TRIP數(shù)據(jù)庫的特點及基本操作；第三部分重點介紹基于TRIP的磁盤文件資源檢索系統(tǒng)分析、設(shè)計及開發(fā)過程。主要說明在C/S(Client/Server)架構(gòu)下，以C#語言為開發(fā)平臺，如何通過編程獲取本地磁盤文件并訪問TRIP數(shù)據(jù)庫，將各種類型的資源文件存于數(shù)據(jù)庫中，進(jìn)行高效準(zhǔn)確的檢索，達(dá)到資源有效管理的目的。在系統(tǒng)設(shè)計中，本地資源的上傳、下載、刪除、全文檢索，以及不同類型的文件如何從數(shù)據(jù)庫中提取并且還原，是系統(tǒng)設(shè)計的核心內(nèi)容。 關(guān)鍵詞：檢索系統(tǒng) 非結(jié)構(gòu)化 TRIP 資源管理 CCL命令 C#
Abstract:Relational database (RDBS) and text database (TDBS) are the most popular database managing systems. RDBS is suitable for handling normative data with normalized specification and limited length, while the TDBS is suitable for handling those non-normative data with different type, structure and length. As a result of rapid development of Internet and OA systems, about 80% data used today are non-normative data can’t be processed by RDBS. Text Retrieval Information Processing（TRIP）system is an information query and manage system good at handling non-normative data, with no limit on the record length and field number, and had been widely used in Europe and United States 20 years ago. As an applications developing platform, TRIP is superior at handling non-normative data with large amounts of text, audio, visual information. This graduation project has realized the design of a local desk file archive, query and manage system, which will be applied in the multimedia resource sharing platform of Applied Arts Experimental Teaching Center of the Beijing Union University. This thesis consists of three parts, first part introduces the research background and significance of this work and the current progress of related research; The second section describes the characteristics of the TRIP database and basic operations; The third part focuses on systems analysis, design and development of the desk file query system based on TRIP. Based on C / S (Client / Server) architecture and the C # development platform, the system can access local disk files and TRIP database, store different kind of files in the database, and retrieve achieves efficiently and accurately. Key Words：Retrieval System Unstructured TRIP CCL order C#
|
