1 Would an Explicit Versioning of the DDC Bring Advantages for Retrieval? Claudia Effenberger, Julia Hauser | 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
Would an Explicit Versioning of the DDC Bring Advantages for Retrieval?
Dec 30, 2015
1. Claudia Effenberger, Julia Hauser. Would an Explicit Versioning of the DDC Bring Advantages for Retrieval?. 2. The DDC is constantly changing. 726Buildings for religious and related purpose 726.7Monastic buildings 726.79Parts and accessory structures - PowerPoint PPT Presentation
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1
Would an Explicit Versioning of the DDC Bring Advantages for Retrieval?
Claudia Effenberger, Julia Hauser
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
2
The DDC is constantly changing
726 Buildings for religious and related purpose726.7 Monastic buildings
726.79 Parts and accessory structures Including cells, cloisters, refectories
726.796 CloistersClass here comprehensive works on cloisters [formerly 726.69]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
PICA 3
3000 Legler, Rolf4000 Mittelalterliche Kreuzgänge in Europa5400 [DDC22ger]726.79
3000 Legler, Rolf4000 Mittelalterliche Kreuzgänge in Europa5400 [DDC22ger]726.796
New subordinated class
It is not possible to review the correctness of DDC notations
3 | 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
4
The modifications can lead to incomplete search results
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
5
In spite of the modification thesearch result should be correct
!
?? ?
ddc=726.79* ?
? ?
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
6
We create identifiers for each version of the DDC classes and a Semantic Network for searching
Title
TitleTitle
skos:closeMatch[2010-06-16]
skos:broaderskos:narrower
dct:isReplacedBy
dc:subject
dc:subject
dc:subjectskos:broadMatch[2007-01-01] {2010-06-16}
dc:subject
dct:replaces
Title
Title
dc:subject
dc:subject
DDC class identifier DDC class identifier
DDC class identifier Subject Heading
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
7
Each version of a DDC class getsa unique identifier
http://dewey/info/class/726.796/2009/03/30/
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
8
Through the identifier we can differentiate between the versions
http://dewey/info/class/726.79/2005/11/02/
http://dewey/info/class/726.79/2009/03/30/
http://dewey/info/class/726.796/2009/03/30/
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
726.79Parts and accessory structures
Including cells, refectories[2009-03-30]
726.79Parts and accessory structures
Including cells, cloisters, refectories [2005-11-02]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
9
Because of the versioning we can identify the meaning of a DDC class
Die singenden Steine von Moissac [2010-03]
Mittelalterliche Kreuzgänge in Europa [2008-02]
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
http://dewey/info/class/726.79/2005/11/02/
http://dewey/info/class/726.79/2009/03/30/
http://dewey/info/class/726.796/2009/03/30/
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
10
We have to save the version of a DDC class in the descriptive entry
3010 Straub, Rainer4000 Die singenden Steine von Moissac5400 [DDC22ger]726.7960944755401 726.796[2009-03-30]
PICA 3
3010 Legler, Rolf4000 Mittelalterliche Kreuzgänge in Europa5400 [DDC22ger]726.795401 726.79[2005-11-02]{2009-03-30}
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
11
We model the relations as a Semantic Network
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
Mittelalterliche Kreuzgänge in Europa [2008-02]Die singenden Steine von Moissac [2010-03]
skos:closeMatch[2010-06-16]
skos:broaderskos:narrower
dct:isReplacedBy
dc:subject
dc:subject
dc:subjectskos:broadMatch[2007-01-01] {2010-06-16}
dc:subject
dct:replaces
Kloster Wedinghausen – Westflügel [2008-03]
Der Kreuzgang der Abtei Altenryf
[2008-01]
dc:subject
dc:subject
726.79Parts and accessory structures
Including cells, refectories[2009-03-30]
726.79Parts and accessory structures
Including cells, cloisters, refectories [2005-11-02] {2009-03-30}
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
Cloister
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
Search without versioning and Semantic Network
12
??
ddc=726.796
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
Mittelalterliche Kreuzgänge in Europa [2008-02]Die singenden Steine von Moissac [2010-03]
Kloster Wedinghausen – Westflügel [2008-03]
Der Kreuzgang der Abtei Altenryf
[2008-01]
726.79Parts and accessory structures
Including cells, (cloisters), refectories
726.796Cloisters
Class here comprehensive works on cloisters
[formerly 726.69]
Cloister
?
?
?
?
?
Die singenden Steine von Moissac [2010-03]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
Search with versioning and Semantic Network
13
ddc=726.796
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
Mittelalterliche Kreuzgänge in Europa [2008-02]Die singenden Steine von Moissac [2010-03]
skos:closeMatch[2010-06-16]
skos:broaderskos:narrower
dct:isReplacedBy
dc:subject
dc:subject
dc:subjectskos:broadMatch[2007-01-01] {2010-06-16}
dc:subject
dct:replaces
Kloster Wedinghausen – Westflügel [2008-03]
Der Kreuzgang der Abtei Altenryf
[2008-01]
dc:subject
dc:subject
726.79Parts and accessory structures
Including cells, refectories[2009-03-30]
726.79Parts and accessory structures
Including cells, cloisters, refectories [2005-11-02] {2009-03-30}
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
Cloister
!!
!! !
!
!Die singenden Steine von Moissac [2010-03]Mittelalterliche Kreuzgänge
in Europa [2008-02]
Der Kreuzgang der Abtei Altenryf
[2008-01]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
There can be irrelevant documentsin the search results
14
? ??
ddc=726.796
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
Mittelalterliche Kreuzgänge in Europa [2008-02]Die singenden Steine von Moissac [2010-03]
skos:closeMatch[2010-06-16]
skos:broaderskos:narrower
dct:isReplacedBy
dc:subject
dc:subject
dc:subjectskos:broadMatch[2007-01-01] {2010-06-16}
dc:subject
dct:replaces
Kloster Wedinghausen – Westflügel [2008-03]
Der Kreuzgang der Abtei Altenryf
[2008-01]
dc:subject
dc:subject
726.79Parts and accessory structures
Including cells, refectories[2009-03-30]
726.79Parts and accessory structures
Including cells, cloisters, refectories [2005-11-02] {2009-03-30}
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
Cloister
? ?
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
15
The modifications in the DDC can lead to incomplete search results
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
16
In spite of the modification thesearch result should be correct
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
17
Identifier and a Semantic Network for better search results
ddc=726.796
Infirmarien – Kranken- und Sterbehäuser der Mönche [2010-02]
Mittelalterliche Kreuzgänge in Europa [2008-02]Die singenden Steine von Moissac [2010-03]
skos:closeMatch[2010-06-16]
skos:broaderskos:narrower
dct:isReplacedBy
dc:subject
dc:subject
dc:subjectskos:broadMatch[2007-01-01] {2010-06-16}
dc:subject
dct:replaces
Kloster Wedinghausen – Westflügel [2008-03]
Der Kreuzgang der Abtei Altenryf
[2008-01]
dc:subject
dc:subject
726.79Parts and accessory structures
Including cells, refectories[2009-03-30]
726.79Parts and accessory structures
Including cells, cloisters, refectories [2005-11-02] {2009-03-30}
726.796Cloisters
Class here comprehensive works on cloisters [formerly 726.69]
[2009-03-30]
Cloister
Die singenden Steine von Moissac [2010-03]Mittelalterliche Kreuzgänge
in Europa [2008-02]
Der Kreuzgang der Abtei Altenryf
[2008-01]
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
18
Thank you for your attention!
| 18 | Concepts in Context | Versioning of the DDC | July 19, 2010
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