On Xml and Rdb Data Management for Digital Archives (III)

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Project title

Code/計畫編號

NSC95-2422-H019-001

Translated Name/計畫中文名

典藏數位化中結構化關聯式與半結構化XML資料管理之研究(III)

Project Coordinator/計畫主持人

Ya-Hui Chang

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

梁德容

Department/Unit

Department of Computer Science and Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=1229470

Year

2006

Start date/計畫起

01-03-2006

Expected Completion/計畫迄

03-03-2007

Bugetid/研究經費

652千元

ResearchField/研究領域

資訊科學--軟體

數位典藏計畫的主要目的，是將重要的文物資訊，以數位化電子型態的方式來儲存，由於文物的後設資料是以XML 格式儲存，因此如何針對XML 格式的資料進行有效率的查詢已經成為重要的議題。本計畫主要延續前兩年在資料儲存和查詢句轉換的研究成果，在第三年的計畫當中提出一個針對XML 後設資料的查詢系統，其主要的研究方向如下：(1) 規劃XQuery 查詢處理之演算法：探討如何有效率的處理XML 資料上結構之限制；(2)設計資訊檢索之相關技術：分析目前在一般文件之資訊檢索技術，並探討其運用在XML 資料上之可能性，例如:Top K 演算法、Scoring function 、Inverted List。(3)整合查詢處理演算法與資訊檢索之技術:將查詢處理演算法與運用在XML 文件上之資訊檢索的技術整合，建立可對XML 格式進行複雜且多功能查詢之系統。以上問題涵蓋的技術相當複雜，包含如何採用適當的Scoring function 以及Top K 演算法、如何將查詢處理演算法與資訊檢索之技術結合。我們預計以第三年的時間進行，相信本計畫的順利推行，將可發展新技術以提供使用者對數位典藏資料庫系統之查詢功能，如此不僅增加一般使用者之便利性，也提高數位典藏機構管理相關資料的效率。The purpose of the digital archive project is to store important cultural pieces in digital formats. Currently, the metadata of each cultural piece are represented in XML format. Therefore, it is extremely important to provide a good mechanism to query XML data in an efficient way. We plan to take three years to study the related topics. During the first and the second years, we have studied the differences between their representational capabilities, and proposed an effective method to represent relevant data and perform query transformation. The project proposed in this year, is to extend what we are doing now, and focuses on the real problem which the archiving institute is facing. The main research topics are as follows: (1) structural query processing: designing an efficient algorithm to process the structural constraints; (2) un-structured query processing: applying the information retrieval techniques, such as scoring functions and inverted lists, on XML data; (3) integrated query processing: implementing an integrated system to support both structural and un-structured query processing. The relevant techniques include the design of query algorithms and scoring functions. We plan to carry out this project for one more year. We also believe that the research result of this project could help the archiving institute manage the important information in a more efficient way.

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On Xml and Rdb Data Management for Digital Archives (III)

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