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OCLC ResearchOCLC Online Computer Library Center
32nd Annual Conference, ASTED Montréal12 November 2005
Terminology Services Project & DeweyBrowser Diane Vizine-GoetzOCLC Research
OCLC ResearchOCLC Online Computer Library Center
OCLC Research Terminology Services Project
Goals:
Provide access to controlled vocabularies and other knowledge organization schemes through Web services
Develop prototype services that can be accessed by library and Semantic Web applications
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Initial focus on genre vocabularies
Available:
DCMI Type Vocabulary
Genre Terms from Guidelines on Subject Access to Individual Works of Fiction, Drama, etc. (GSAFD)
Newspaper Genre Terms (NGL)
Under development:
Radio Form/Genre Terms (RADFG) U.S. Library of Congress
Moving Image Form/Genre Terms (MIGFG) U.S. Library of Congress
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Other vocabularies under development
Library of Congress Subject Headings
U.S. Library of Congress
Medical Subject Headings (MeSH)
U.S. National Library of Medicine 2005 MeSH & 2005 MeSH sample
Répertoire de vedettes-matière (RVM)
Bibliothèque de l'Université Laval
Union List of Artists' Names (ULAN)
J. Paul Getty Trust ULAN subset
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Processing workflow
1. Convert files to standard format:
MARC 21 authorities or classification formats
Enhance records with administrative data
As feasible, enrich with mappings to other vocabularies
Convert file into XML format (MARC XML)
2. Load into services environment:
Supports various web services
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Sample source file: DCMI Type vocabulary
HTML display of DCMI type vocabulary
PREFERRED TERM
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<datafield tag="040" ind1="" ind2="">
<subfield code="a">OhDuDCMI</subfield>
<subfield code="b">eng</subfield>
<subfield code="c">OCoLC-O</subfield>
<subfield code="d">OCoLC-O</subfield>
<subfield code="f">dct</subfield>
</datafield>
<datafield tag="155" ind1="" ind2="">
<subfield code="a">Image</subfield>
</datafield>
<datafield tag="555" ind1="" ind2="">
<subfield code="w">h</subfield>
<subfield code="a">Still Image</subfield>
</datafield>
MARC-XML encoding of DCMI Type
Excerpt from record for “Image”
PREFERRED TERM
Sample source file: GSAFD (Guidelines on Subject Access to Individual Works of Fiction, Drama, Etc., )
GSAFD record in MARC 21 authorities format as retrieved from an SRW server at OCLC
PREFERRED TERM
MAPPED TERMS
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Service Environment
Web services including:
SRU/W
Microsoft Research Pane application
Registration
Query handling
Markup translation
Authorization/Authentication
Other Web browser side bars (future)
TerminologyServices
Architecture
Web Service
Vocabulary A
SRW/U
Vocabulary B
REST
Vocabulary C
SOAP
TerminologyPane
Metadata Editing Application
•Registration•Query handling•Markup translation•Authorization/Authentication
Mic
ros
oft
Off
ice
Re
se
arc
h
Pa
ne
Full TextDatabas
eSQL XML
1
2
3
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Microsoft Research Pane
Part of MS Office 2003 installation
Provides a convenient means for users of Internet Explorer and MS Office 2003 applications to have access to loosely-coupled services from 3rd parties…
Examples:
Access to 3rd party reference databases (e.g., articles)
Access to special files like thesauri
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Research pane toolbar icon
Research Options
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OCLC services pilot test
OCLC production group evaluating for possible terminology services & products
Initial testing using Microsoft Research Pane together with OCLC Connexion® interface
Offers access to multiple controlled vocabularies to support consistent metadata for library, archives, museum collections
Pilot institutions include U.S. & non-U.S. public, special and university libraries, and non-library organizations
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DeweyBrowser
The DeweyBrowser is a research prototype that supports searching and browsing collections of resources organized by Dewey
The prototype was developed to make the most of DDC numbers assigned to library materials and to explore the use of AJAX (Asynchronous JavaScript and XML)
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DeweyBrowser & AJAX
AJAX is an approach to programming web interfaces that allows user interaction with a web page without refreshing the whole screen
Using AJAX speeds up the interface by only requesting parts of a page
Refreshing only the part of the screen that changes tends to encourage exploration, behavior that is central to how the DeweyBrowser was designed to be used
The DeweyBrowser is an example of an entire application built using AJAX
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DeweyBrowser
The interface presents search results at three levels corresponding to the three main summaries of Dewey
To use the prototype, a user navigates up and down the Dewey hierarchy by clicking on a category or enters a search term
The categories are color-coded to indicate where matching records occur
red, orange, and yellow (warm colors) — many records
green and blue (cool colors) — fewer records
white — no matching records
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Dewey Browser
Summaries can be displayed in English, French, German, Spanish, or Swedish
Search and browse results can also be limited to resources written in a particular language
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Dewey Browser
The DeweyBrowser has been deployed over three collections of resources:
ebooks - 210,000+ electronic books
wcat – 2.2 million of the most widely held WorldCat records
abr14 – selected data from the Abridged Edition 14 of DDC
WorldCat and ebooks collections are linked to the Find in a Library web service
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OCLC ResearchOCLC Online Computer Library Center
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Dewey Browser
Abridged 14 collection includes a collaborative editing feature that enables authorized users to suggest index terms for a DDC class (Suggested terms)
Suggested terms will be delivered to interested users via RSS
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OCLC ResearchOCLC Online Computer Library Center
OCLC ResearchOCLC Online Computer Library Center
OCLC ResearchOCLC Online Computer Library Center
OCLC ResearchOCLC Online Computer Library Center
OCLC ResearchOCLC Online Computer Library Center
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Links
OCLC Research Terminology Services project
http://www.oclc.org/research/projects/termservices/
OCLC Terminologies Pilot
http://www.oclc.org/research/projects/termservices/resources/tspilot-services.htm
OCLC ResearchWorks
http://www.oclc.org/research/researchworks/
Vizine-Goetz, Diane and Thomas B. Hickey. 2005. “DeweyBrowser.” Forthcoming in OCLC Newsletter No. 269
http://www.oclc.org/news/publications/newsletters/