UBC

SLAIS Colloquium

14 March 2012

Joan S. Mitchell Editor in Chief, DDC

OCLC

mitchelj@oclc.org

The Dewey Ecosystem

The Dewey ecosystem

flickr.com/photos/disneyite/1506813031/ by Donna62 on Flickr

Linked data

DDC data

Categorized content

Translations

Mappings

Outline

• What data do we have?

• How do we encode the data?

• How do we distribute the data?

• What are some projects we’re working on right now?

• How can we exploit the Dewey ecosystem to support

discovery?

200

Religion

Class

Full

edition

data

Abridged

edition

data

DDC

Summaries

Dewey English-language data

“Edition” data file view

French

DDC 22

German

DDC 22

Italian

DDC 22 Swedish

Mixed

DDC 22

Italian

A14

Vietnamese

A14 French

A14

Spanish A14 Hebrew

A14

200

Religion

Class

Guide

(French)

DDC 22

A14

DDC Sach-

Gruppen

(German)

DDC

Summaries

English

French

Italian

Rhaeto-

Romansch

Afrikaans

Arabic

Chinese

French

German

Norwegian

Portuguese

Russian

Scots Gaelic

Spanish

Swedish

DDC translations:

Anatomy of an edition

Arabic

DDC 23

(2012)

Italian

DDC 23 Norwegian

DDC 23

(2012)

Swedish

Mixed

DDC 23

2012

Indonesian

A15

(2012)

200

Religion

Class

(2012)

Guide

(French)

(2012)

A15

2012

DDC

Summaries

(2011)

Afrikaans

Arabic

Chinese

French

German

Norwegian

Portuguese

Russian

Scots Gaelic

Spanish

Swedish

. . .

(2012)

DDC 23 Family

Vietnamese

DDC 23

(2013)

French

DDC 23

German

DDC 23

DDC 23

2011

Portuguese

DDC 23

(2013)

Translations

Language-independent representation

Kos & drank

641 食品 & 饮品

Food & drink

Nourriture et boisson

Interoperability

DDC 22 (English) DDC 22 (Italian)

T2—4547 Ravenna province T2—4547 Provincia di Ravenna

T2—45471 Ravenna T2—45471 Comune di Ravenna

T2—45472 Cervia

T2—45473 Ovest della provincia di Ravenna

T2—454732 Alfonsine

T2—454734 Lugo

T2—454735 Bagnacavallo

T2—454736 Russi

T2—45474 Sud della provincia di Ravenna

T2—454742 Faenza

T2—454743 Brisighella

T2—454744 Riolo Terme

T2—4548 Forlì-Cesena province and Rimini

province

T2—4548 Province di Forlì-Cesena e Rimini

Localization

027 Government libraries

027.53-027.59 Specific institutions

Add to base number 027.5 notation 3-9

from Table 2 for area served, e.g., . . .

Language Example DDC number

English Library of Congress 027.573

Italian Biblioteca nazionale centrale di Firenze 027.545

Norwegian Nasjonalbiblioteket i Norge 027.5481

Mappings and crosswalks

DDC

LCSH

MeSH

SWD

RAMEAU

SAB

BISAC SEARS

CSH

UDC

LCC

SAO

Nuovo

Soggettario

AGROVOC

Data encoding: MARC 21 Classification Format

Class record for 796.334

Data encoding: MARC 21 Classification Format

Class record for 796.334

750 #7 $a Soccer

$0(OCoLC-D)och00114729

$2 ddcri $9 as=AP $9 ps=PE

Data encoding: MARC 21 Authority Format

Relative Index record for “Soccer”

Data distribution formats

Two basic distribution formats:

• MARCXML

• RDF/SKOS

Each distribution format has further end-user

transformations associated with it, e.g., MARCXML PDFs

for print versions

Data distribution network

• Editorial Support System (ESS)

• Distribution Server

• Translation Software

• WebDewey

• Linked Data Services

DDC distribution model (excerpt):

ESS data Distribution server WebDewey

DISTRIBUTION

SERVER

ESS OCLC

WebDewey

OCLC

EN

WebDewey

Swedish

mixed EN/SV

WebDewey

Italian

IT

WebDewey

German

DE

WebDewey

French

FR

WebDewey

Norwegian

NO

.

.

.

Translation

Software

German

EN/DE

Translation

Software

Italian

EN/IT

Translation

Software

French

EN/FR

Translation

Software

Arabic

EN/AR

Translation

Software

Norwegian

EN/NO

Translation

Software

Swedish

EN/SV

796.334 Soccer (Association football)

WebDewey

ESS Distribution server Translation system

Distribution server Swedish WebDewey

DISTRIBUTION

SERVER

ESS OCLC

WebDewey

OCLC

EN

WebDewey

Swedish

mixed EN/SV

WebDewey

Italian

IT

WebDewey

German

DE

WebDewey

French

FR

WebDewey

Norwegian

NO

.

.

.

Translation

Software

German

EN/DE

Translation

Software

Italian

EN/IT

Translation

Software

French

EN/FR

Translation

Software

Arabic

EN/AR

Translation

Software

Norwegian

EN/NO

Translation

Software

Swedish

EN/SV

796.334 Fotboll

Swedish WebDewey

Path to linked data web services

(http://dewey.info)

DISTRIBUTION

SERVER

ESS OCLC

WebDewey

OCLC

EN

WebDewey

Swedish

mixed EN/SV

WebDewey

Italian

IT

WebDewey

German

DE

WebDewey

French

FR

WebDewey

Norwegian

NO

.

.

.

Translation

Software

German

EN/DE

Translation

Software

Italian

EN/IT

Translation

Software

French

EN/FR

Translation

Software

Arabic

EN/AR

Translation

Software

Norwegian

EN/NO

Translation

Software

Swedish

EN/SV

Linked

DDC Web

Services

Linked Open Data Cloud

http://richard.cyganiak.de/2007/10/lod/

Linked Open Data Cloud: DDC

DDC

Linked data in dewey.info

http://dewey.info/class/641/about

Linked data in dewey.info:

Assignable numbers from Abridged Edition 14

http://dewey.info/class/305.895/a14/about

Linked data in dewey.info:

Machine representation in RDF/SKOS

http://dewey.info/class/305.895/a14/about.rdf

Some projects we’re working on right now

• Extensions to linked DDC data services

• Islamic law

• Provenance of metadata

• “Abridged” view of WebDewey

• Relationships in the DDC

• Modeling DDC using general conceptual models (FRSAD

and FRBR)

• User contribution / number building assistant

User contribution / number building assistant

• Parses add notes and other instructions to guide the user

• In the background, constructs a MARC class record with

765 (Synthesized number components) fields

• Helps the user in adding index terms to a saved or

predefined built number

• In the background, constructs a MARC authority record for

every user-generated RI term

• Submission path back to the worldwide Dewey community

MARC

LDR nw###n##

001 ocd00168684

003 [institution symbol]

005 20110326173550.0

008 100204aaaaaabb

040 ##  $a [institution symbol] $b eng $c [institution symbol]

084 0#  $a ddc $c 23 $e eng

153 ##  $a 796.522092 $e 796.522  

765 0#  $b 796.522  $z 1 $s 092  $u 796.522092 

750 #7  $a Mountain climbing $x biography

750 #0  $a Mountaineering $x biography

MARC view

LDR nz###n##

001 och00082430

003 [institution symbol]

005 20101115221022.0

008 100206|||a|z||||||##########||#a||#####d

040 ## $a [institution symbol] $b eng $c [institution symbol] $d [institution symbol]

$f [subject heading MARC code]

083 04 $a 796.522092 $0 (OCoLC-D)ocd00168684 $2 23 

$5 [institution symbol] $9 as=PR $9 ps=EO $9 cts=2010-11-15T22:10:22Z

150 ##   $a Mountaineering $x biography

MARC view

Users WebDewey

Distribution Server Language host review

Redistribution

DISTRIBUTION

SERVER

ESS OCLC

WebDewey

OCLC

EN

WebDewey

Swedish

mixed EN/SV

WebDewey

Italian

IT

WebDewey

German

DE

WebDewey

French

FR

WebDewey

Norwegian

NO

.

.

.

Translation

Software

German

EN/DE

Translation

Software

Italian

EN/IT

Translation

Software

French

EN/FR

Translation

Software

Arabic

EN/AR

Translation

Software

Norwegian

EN/NO

Translation

Software

Swedish

EN/SV

WebDewey

EN Users

WebDewey

DE Users

WebDewey

NO Users

WebDewey

SV Users

What are some opportunities to support

discovery?

• Enhanced physical discovery

• Enhanced physical + virtual discovery

• Virtual discovery: Hierarchical browser

• Virtual discovery: Exploiting additional numbers + facets

• Virtual discovery: Alternative viewpoint

Physical discovery:

Using BISAC mappings to add context

Physical + virtual discovery:

Using translations to provide multilingual

access

Virtual discovery: Hierarchical browser

WebDeweySearch (DNB, KB, Nat’l Lib. Norway)

Virtual discovery:

Exploiting additional numbers

Leckere Suppen und Einto ̈pfe

082 04 $a 641.823 $q DE-101 $2 22/ger

083 0# $a 641.813 $q DE-101 $2 22/ger

641.823 Stews

641.813 Soups

Virtual discovery:

Exploiting facets

Das Highlander-Kochbuch

082 04 $8 1\x $a 641.594115 $q DE-101 $2 22/ger

085 ## $8 1\x $b 641.59

085 ## $8 1\x $z 2 $s 4115

641.593-.599 Cooking characteristic of specific continents,

countries, localities

T2—4115 Highland

Virtual discovery: Alternative viewpoint

220 Bible

230-280 Christianity

290 Other religions

292 Classical religion (Greek and Roman)

293 Germanic religion

294 Religions of Indic origin

295 Zoroastrianism

296 Judaism

297 Islam, Babism, Bahai Faith

299 Religions not provided for elsewhere

Dewey Religion Browser (1) A chronological/regional view of specific religions in Dewey

Dewey Religion Browser (2) A chronological/regional view of specific religions in Dewey

Expansion of

“Religions of East and Southeast Asian Origin”

Launch search of Taoism (dd:299.514) using

WorldCat.org API

The Dewey ecosystem

flickr.com/photos/disneyite/1506813031/ by Donna62 on Flickr

Linked data

DDC data

Categorized content

Translations

Mappings

Thank You!

Questions? Comments? Ideas?

Some useful links

DDC 23 http://www.oclc.org/us/en/dewey/versions/print/default.htm

Abridged Edition 15 http://www.oclc.org/us/en/dewey/versions/abridged/default.htm

WebDewey 2.0 http://dewey.org/webdewey

dewey.info http://dewey.info

Dewey webinars &

presentations

http://www.oclc.org/us/en/dewey/news/conferences/default.htm

025.431:

The Dewey blog

http://ddc.typepad.com

Classify http://classify.oclc.org/classify2/

Questions? dewey@loc.gov (Dewey Editorial Office)

dewey@oclc.org (Licensing, group purchases, LIS program)