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A Metadata Model Based on the Concept of Structured Digital Object (SDO) and Its Application in Digital Libraries - From Concept to Prototype System Ying LI, Hidehiro ISHIZUKA Graduate School of Library, Information and Media Studies, University of Ts u kuba, Japan Wednesday, October 13, 2004. - PowerPoint PPT PresentationTRANSCRIPT
11SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
A Metadata Model Based on the Concept of A Metadata Model Based on the Concept of Structured Digital Object (SDO) and Its Structured Digital Object (SDO) and Its
Application in Digital LibrariesApplication in Digital Libraries
- From Concept to Prototype System- From Concept to Prototype System
Ying LI, Hidehiro ISHIZUKAYing LI, Hidehiro ISHIZUKAGraduate School of Library, Information and Media Studies, University of Tsukuba, JapanGraduate School of Library, Information and Media Studies, University of Tsukuba, Japan
Wednesday, October 13, 2004Wednesday, October 13, 2004
22SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Outline of PresentationOutline of Presentation
Introduction Introduction
Body Body
ConclusionConclusion
33SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
IntroductionIntroduction
Definition of MetadataDefinition of Metadata
&&
the Concept of the Concept of SStructured tructured DDigital igital OObject (SDO) bject (SDO)
A Metadata Model Based on the Concept of SDOA Metadata Model Based on the Concept of SDO
Research PurposesResearch Purposes
44SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Introduction Introduction - Definition of Metadata- Definition of Metadata
Definition of Metadata :Definition of Metadata : Data about dataData about data Metadata is a set of structured digital objects Metadata is a set of structured digital objects
about resources in digital libraries.about resources in digital libraries.the Concept of the Concept of SStructured tructured DDigital igital OObjectbject
SDO is metadataSDO is metadata
55SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
IntroductionIntroduction- - A Metadata Model Based on the Concept of SDOA Metadata Model Based on the Concept of SDO
Metadata Model Based on the Concept of SDOMetadata Model Based on the Concept of SDO metadatametadata elementary (atomic) unitelementary (atomic) unit hierarchy structurehierarchy structure
Research PurposesResearch Purposes all the different granularitiesall the different granularities individualindividual precise searchprecise search reuse & sharing resourcesreuse & sharing resources interoperabilityinteroperability
66SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Elementary (Atomic) UnitElementary (Atomic) Unit
<docAuthor> LI, Ying</docAuthor> <docAuthor> LI, Ying</docAuthor>
<docAuthorLastName>LI<docAuthorLastName><docAuthorLastName>LI<docAuthorLastName><docAuthorFirstName>Ying </docAuthorFirstName><docAuthorFirstName>Ying </docAuthorFirstName>
77SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
・・・・・・
Hierarchy Structure for SDOHierarchy Structure for SDO
The first layer: set for primary documentse.g. set={anthrax-related articles}
The second layer: a primary documente.g. an article on anthrax.
The third layer: set for a part of a primary documente.g. set={title, abstract,…}
The fourth layer: a part of a primary document e.g. title, abstract, a table, a figure, reaction formula.
The fifth layer: set morphemee.g. set={word, mol. formula, a cell value of table, ..}
The sixth layer: morphemee.g. a word, molecular formula.
Coarse
Fine* Source: H. Ishizuka, Y. Li” Digital Library System Based on Concept of Computer-processable Digital Objects ”, Proceedings of Digital Library - IT Opportunities and Challenges in the New Millennium, pages 315-326, 2002.7, Beijing.
・・・・・・・
88SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
BodyBodyDesign ObjectiveDesign Objective ⇔⇔ Enhancing the FunctionalityEnhancing the Functionality
a Global Digital Library Based on SDO Metadataa Global Digital Library Based on SDO MetadataProposal of Proposal of the Global Digital Library & Its Functions :the Global Digital Library & Its Functions :
Using the metadata model based-SDO, Using the metadata model based-SDO, RestructuringRestructuring existing resources in existing digital libraries, existing resources in existing digital libraries, Forming "Forming "Global Digital LibraryGlobal Digital Library ". ".
Global Digital Library has a feature of a portal site.Global Digital Library has a feature of a portal site. SSatisfying users for precise search, atisfying users for precise search,
Meeting individual user need to different granularities information. Meeting individual user need to different granularities information. Providing Providing Web ServicesWeb Services for information services, for information services, & the function of & the function of Topic MapsTopic Maps to associate SDOs with information to associate SDOs with information
resources. resources. SSolving interoperability problems, olving interoperability problems, Achieving goals: reusing, sharing information.Achieving goals: reusing, sharing information.
99SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Main ItemsMain Items
Architecture of the Design for a Global Digital Architecture of the Design for a Global Digital
Library Based on SDO MetadataLibrary Based on SDO Metadata Developing Prototype for a Global Digital Library Developing Prototype for a Global Digital Library Based on SDO MetadataBased on SDO Metadata
1010SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
ArchitecturArchitecturee
Metadata SetBased-SDO
Heterogeneous Resources
in Existing Digital Library
Global DigitalLibrary Based-SDOHierarchy Structure
With a portal site property
Web Services
Topic Maps
Matching
MetadataNetwork Structure
Forming
Reply
Searcher’s Access
Web Services
Reply
Resources
Fig. Architecture of the Prototype
Subsystem: Creating Metadata Model
Subsystem: Accessing and Replying
Searcher’s Access
1111SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Subsystem : Creating Metadata Model
Subsystem: Creating Metadata Model
Definition of SDO
Metadata Set
Based-SDO
Heterogeneous Resources in Existing
Digital Library
Global DigitalLibrary Based-SDOHierarchy Structure
Forming
Matching
①
③
②
1212SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Subsystem: Accessing & Replying
Heterogeneous Resources
in Existing Digital Library
Global DigitalLibrary Based-
SDOHierarchy Structure
Metadata SDOHierarchy Structure
Top
ic M
ap
s
Meta
data
Based
N
etw
ork
S
tructu
re
Web
S
erv
ices
①
②
③
④
⑤
⑥
⑦
1313SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Prototype: Show ScreenshotPrototype: Show Screenshot
• GranularityGranularity• Web ServicesWeb Services• Topic MapsTopic Maps
1414SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Granularity of the Existing Merck Index Data
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Granularity of the Global Digital Library Based-SDO Hierarchy Structure
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Web Services for Merck Index
Web Services for Merck Index
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Invoking Merck Index
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Invoked Result
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Granularity of the Global Digital Library Based-SDO Hierarchy Structure
2020SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Describing/Expressing SDOs Relationships by Topic Maps
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Resources Discovery by Topic Maps
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<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="TopicMapsExample.xsl"?><topicMap xmlns:xlink="http://www.w3.org/1999/xlink"> <topic> <baseName> <baseNameString>Ciprofloxacin</baseNameString> </baseName> <occurrence> <instanceOf> <topicRef xlink:href="TopicMapsPatentsOccurrence.xml"/> </instanceOf> <resourceData>Patents</resourceData> </occurrence> <occurrence> <instanceOf> <topicRef xlink:href="TopicMapsJournalsOccurrence.xml"/> </instanceOf> <resourceData>Jurnals</resourceData> </occurrence> </topic>
XML Topic Maps (XTM)
2323SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
Future Work -Application to E-learning
Text Based on SDO
Internet
Web Services
(SOA)
By Topic Maps, Linking Between
Relevant Teaching Materials, and Discoverying
Service Request
Result Set
Developing Teaching Materials Based on SDO
Sharing Teaching
Materials by Web Services
Contract-Based
2424SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October
ConclusionConclusion
Structured Digital Object is :Structured Digital Object is : MetadataMetadata Different granularities: from atomic to CoarseDifferent granularities: from atomic to Coarse Hierarchy structureHierarchy structure Up-to-date and practicalUp-to-date and practical use of Metadata, Web Services (SOA), and Topic Maps use of Metadata, Web Services (SOA), and Topic Maps
Reuse & Sharing Resources, Interoperability, Individual, Precise searchReuse & Sharing Resources, Interoperability, Individual, Precise search
Structured Digital Object can be applied in the fields of :Structured Digital Object can be applied in the fields of : Global Digital libraryGlobal Digital library E-learningE-learning etc. etc.
SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October 2525
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