Understanding, extracting and
enhancing catalogue data
Péter Király
(GWDG, Göttingen, Germany)
Central European Book History workshop: data & tools
11 January 2023
Österreichische Nationalbibliothek
https://bit.ly/book-history-onb-2023

understanding: exploratory data analysis
http://ddb.qa-catalogue.eu/onb/
https://bit.ly/book-history-onb-2023

map with timeline
http://ddb.qa-catalogue.eu/geo-onb/
https://bit.ly/book-history-onb-2023

extracting information
date: 008/07-10: General information / date1 (normalized)
place name: 260$a: Publication place („surface form”)
onb-place-time.csv
1730,Mediolani,6
1730,Milano,2
1731,Mediolani,14
1731,Milano,1
1732,Mediolani,7
1733,Mediolani,7
1733,Milano,1
1734,"En Milan",1
1734,Mediolani,1
https://bit.ly/book-history-onb-2023

date normalization
171u, 171-, 171#, „171 ” → 1710
https://bit.ly/book-history-onb-2023

place name normalization
place-synonyms.csv (8085 surface forms of 628 locations)
Milano=Milan|Milano, Italy|Milan, Italy|Milani|Cinisello Balsamo (Milano)|...
coords.csv (1800+ locations)
"Milano",3173435,"Milan","Italy","45.46427","9.18951"
Milan
Milano, Italy
Milan, Italy
Milani
Cinisello Balsamo (Milano)
…
Geonames ID normal form country latitude longitude
3173435 Milano Italy 45.46427 9.18951
https://bit.ly/book-history-onb-2023

18th century books in three catalogues
country catalogue books with
recognized
locations
place name
recognition (%)
normalized
geonames
(751, 752)
Austria ÖNB 123 431 95+ 7%
Hungary OSzK 32 974 95+ 0%
Poland BPNL 26 843 90+ 1%
https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

https://bit.ly/book-history-onb-2023

001 990029097480603338
751 $a Milano
$e publication place
$0 3173435
$1 https://www.geonames.org/3173435
$2 Geonames
$4 pup
roundtripping
datasharing options
record enhancement: ID and publication place information
https://bit.ly/book-history-onb-2023

references
★ analyses of ÖNB catalogue: http://ddb.qa-catalogue.eu/onb/
★ interactive map: http://ddb.qa-catalogue.eu/geo-onb/
★ quality assessment code: https://github.com/pkiraly/metadata-qa-marc
★ place name normalization code: https://github.com/pkiraly/analysing-nat-
libs/tree/main/place-names
★ slides: https://bit.ly/book-history-onb-2023
★ contact: pkiraly@gwdg.de, @kiru@openbiblio.social, @kiru