Making Visible Hidden Relationships
Download
1 / 23

Making Visible Hidden Relationships in the Dewey Decimal Classification: How Relative Index Terms Relate to DDC Classes - PowerPoint PPT Presentation


  • 239 Views
  • Uploaded on
  • Presentation posted in: Sports / Games

Making Visible Hidden Relationships in the Dewey Decimal Classification: How Relative Index Terms Relate to DDC Classes. 10 th International ISKO Conference August 6, 2008 Rebecca Green Assistant Editor Dewey Decimal Classification. Example class. 796.86Fencing

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Making Visible Hidden Relationships in the Dewey Decimal Classification: How Relative Index Terms Relate to DDC Classes

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Slide1 l.jpg
Making Visible Hidden Relationships in the Dewey Decimal Classification: How Relative Index Terms Relate to DDC Classes

10th International ISKO Conference

August 6, 2008

Rebecca Green

Assistant Editor

Dewey Decimal Classification


Example class l.jpg
Example class

  • 796.86Fencing

  • Including bojutsu, kendo

  • Class here sword fighting

  • RI:Bojutsu

  • Fencing (Swordplay)

  • Kendo

  • Sword fighting

  • Swordplay


Ddc classes l.jpg
DDC classes

  • Class as gathering point for set of topics

  • Caption

  • Including concepts

  • Class here concepts

  • Topics either equal / approximate whole of class or are in standing room in class


Topics in classes l.jpg
Topics in classes

  • Approximating the whole vs. standing room:

  • Standard subdivisions can only be added for topics that approximate the whole of the class, not for those in standing room

  • Future expansion anticipated for topics in standing room, not for those that approximate the whole

  • Topics in class-here notes approximate the whole of the class; topics in including notes are in standing room


Relative index terms and class topics l.jpg
Relative Index terms and class topics

  • Explicitly: Relative Index terms index class as whole

  • Implicitly: Relative Index terms associated with specific topics in class

  • Specific associations not recorded

  • Thus, unknown if Relative Index term topic approximates the whole of the class or is in standing room there

  • Project attempts to make this designation automatically


Motivation l.jpg
Motivation

  • Correct decision on addition of standard subdivisions

  • Maintenance of scheme: If topic moves to another class, associated Relative Index term should, too

  • Support automated operations on scheme, e.g., creation of derived versions


Difficulties l.jpg
Difficulties

  • Identification of topics

  • Topics in caption

  • In multitopic caption, topics may approximate whole or be in standing room

  • Paraphrase relationship between topics in schedules and Relative Index terms (morphological, syntactic, semantic)


Example l.jpg
Example

  • 133.3 Divinatory arts

  • Including fortune-telling by bones, dice, pendulum

  • Relative Index terms:

  • Bones—divination

  • Dice—divination

  • Pendulums—divination


Standard subdivisions note l.jpg
Standard subdivisions note

  • 749 Furniture and accessories

    Standard subdivisions are added for furniture and accessories together, for furniture alone


Two phase approach l.jpg
Two-phase approach

  • In schedules

    Isolate topics

    Determine if topics equal / approximate whole of class (AW) or are in standing room (SR)

  • Match Relative Index terms to schedule topics, using series of increasingly more relaxed strategies


Topic isolation l.jpg
Topic isolation

  • Sign languages used primarily for purposes other than communication of deaf people

  • Systems programsOperating systems

  • Satellites and rings; eclipses, transits, occultations

  • Religious experience, life, practice [can’t parse reliably]


Approximates the whole topics l.jpg
Approximates-the-whole topics

  • All topics in class-here note

  • Topic in single topic caption

  • Topic in multitopic caption, with note that standard subdivisions are added for:

    Any or all topics in heading

    Either or both topics in heading

    The specific topic alone


Standing room topics l.jpg
Standing room topics

  • All topics in including notes

  • Topic in multitopic caption, with note for adding standard subdivisions, not meeting criteria for approximating the whole

  • Topic in multitopic caption, without note for adding standard subdivisions, that matches topic in subordinate caption


Slide14 l.jpg

Matching RI terms to topics:EXACT match

121 Epistemology (Theory of knowledge)

121.63      Certainty and probability

Standard subdivisions are added for either or both topics in heading

RI: Probabilities—epistemology (AW)


Matching ri terms to topics in match l.jpg
Matching RI terms to topics:IN match

  • 620 Engineering

  • 627.52      Irrigation

  • Class here construction and use of irrigation canals

  • RI: Irrigationcanals—engineering(AW)


Matching ri terms to topics keyword match l.jpg
Matching RI terms to topics:KEYWORD match

  • 384.14      *Activities and services

  • Including Morse and other code telegraphy, printing telegraphy; stock tickers, teletype, telex; comprehensive works on facsimile transmission

  • RI: Morsecode telegraphy (SR)


Matching ri terms to topics keyword match17 l.jpg
Matching RI terms to topics:KEYWORD match

  • 384.51      *Satellitecommunication

  • RI: Communicationssatellites (AW)

  • 384.54      *Radiobroadcasting

  • Class here public broadcasting (noncommercial broadcasting), public aspects of amateur radio, interdisciplinary works on radiobroadcasting and television broadcasting

  • RI: Noncommercialradio(AW)


Matching ri terms to topics partial 50 match l.jpg
Matching RI terms to topics:PARTIAL (50%+) match

  • 748    Glass

  • 748.6      Methods of decoration

  • RI: Decorative treatment—glass(AW)



Future improvements 1 l.jpg
Future improvements (1)

  • Observe hierarchical force

  • 302Social interaction

  • Class here . . . social psychology

  • 302.24Content

  • Including gossip, rumor

  • RI: Rumor—social psychology


Future improvements 2 l.jpg
Future improvements (2)

  • Don’t require match on Relative Index qualifier

  • 335.2 Systems of French origin

  • Including Babouvism, Icarianism

  • RI: Babouvism (Socialist school)


Slide22 l.jpg

Future improvements (3)

  • Introduce stopwords for general terms

  • 748    Glass

  • 748.6      Methods of decoration

  • RI: Decorative treatment—glass(AW)


Future improvements 4 l.jpg
Future improvements (4)

  • Locally reverse treatment of main heading and subheading

  • 220The Bible

  • 224 Prophetic books of Old Testament

  • 224.1 Isaiah (Isaias)

  • RI: Bible. O.T.--Isaiah


ad
  • Login