EPFL presentation at the Garzoni conference, October 11th 2014.

1. Data Modelling, Interoperability and
Exploration for the Garzoni Project
Frédéric Kaplan, Giovanni Colavizza EPFL

2. Interoperability: the VTM quest
3 layers of interoperability:
• Data models
• Data formats
• Interfaces

3. Requirements for the Garzoni project
• Future interoperability with VTM systems
• Modularity at all levels (data model, formats
and interfaces) during the project and beyond
• Portability (no “final” system, data migration)

4. Data model: our approach
Semi-structured model: no distinction between data and schema
(how data is organised). The amount of structure depends on the
purpose.
How? RDF statements: subject - predicate - object.
E.g. “Matio da Tomet (stampador al torcollo)
1582-10-30” [SUBJECT] has_folia [PREDICATE] “97r” [OBJECT]

5. Data model
Temporal
conditions
Financial
conditions
Identified
Person
Apprentice Masters Guarantors
Contract
Professions Parishes
Document
level
Access
level

6. Example of contents, the upper layer
• Id: Name of apprentice, profession and date
• Registry
• Foliation
• Apprentice
• Master
• Guarantors
• Temp. conditions
• Financial conditions
• References to other documents (e.g. menzioni di
contratto)

7. Technical solution
Semantic MediaWiki platform
Database
(relational)
Mediawiki
Web
interface for
data entry
Web crawler
Intermediary layer
1 page = 1 entity
everything is a page
RDF import/
export
XML import/
export

8. Technical solution
Semantic MediaWiki platform
Pro:
• Highly modular: change of data model and interface (relatively) easy
• User management
• Versioning
• Totally open: web API, import/export in rdf and xml
Cons:
• The page is a unit of content and a unit of visualisation
• Very limited for search and visualisation
• Slow
Therefore:
• Data already ported to other databases
• Need to build a proper search interface

9. Data Exploration

10. Options
• Descriptive statistics
• Regression analysis
• Network analysis and visualisations

11. Most represented professions
Paternostrer da vero
Tornidor
Diamanter
Arte dei colori
Marangon da casse da specchi
Indorador
Marangon da casse
Batioro
Librer
Stampador, Torcoler
Stampador, Compositor
Cuori d'oro
Dalle perle false
Tiraoro
Murer
Tagiapiera
Marzer
Marangon
Orese
Spechier
41
42
54
61
63
70
70
80
85
85
104
122
127
156
276
320
343
403
443
853
69
69
70
81
93
104
106
117
123
134
150
152
162
250
300
361
460
506
596
1032
Intagiador
Pitor (24)
Marangon da casse da specchi
Marangon da casse
Stampador, Torcoler
Indorador
Stampador, Compositor
Librer
Batioro
Cuori d’oro
Dalle perle false
Squerariol
Tiraoro
Murer
Tagiapiera
Marangon
Marzer
Orese
Spechier

12. Contracts by year

13. Women
• 7 women on 4878 full-information contracts (17
globally)
• 43 among masters
• 256 among guarantors

14. Avg. salary per year and normalised number of
contracts
0
1
2
3
4
5
6
7
8
9
10
Meansalaryinducats
1582
1583
1584
1591
1592
1593
1596
1597
1598
1620
1621
1622
1625
1626
1627
1632
1644
1645
1653
1654
1656
1657
1658
1664

15. Impact of print “industry”
0
1
2
3
4
5
6
7
8
9
10
Meansalaryinducats
1582
1583
1584
1591
1592
1593
1596
1597
1598
1620
1621
1622
1625
1626
1627
1632
1644
1645
1653
1654
1656
1657
1658
1664

16. Professions of the print “industry”
Total 436 100.00
Stampator al componer 1 0.23 100.00
Stampator 2 0.46 99.77
Stampador, Torcoler 85 19.50 99.31
Stampador, Stampador alle casse 1 0.23 79.82
Stampador, Miniador 3 0.69 79.59
Stampador, Compositor 104 23.85 78.90
Stampador in carta 1 0.23 55.05
Stampador alle casse 1 0.23 54.82
Stampador 33 7.57 54.59
Miniador 24 5.50 47.02
Ligador da libri 1 0.23 41.51
Librer, Stampador 2 0.46 41.28
Librer, Getador da caratteri da stampa 1 0.23 40.83
Librer da libri in greco 1 0.23 40.60
Librer da libri a stampa 2 0.46 40.37
Librer da conti, Librer da carta bianca 4 0.92 39.91
Librer da carta bianca 11 2.52 38.99
Librer 85 19.50 36.47
In tenir libri 1 0.23 16.97
Getador da caratteri da stampa 18 4.13 16.74
Far libreti de spechi de miniar 3 0.69 12.61
Dalli canoni, Ligador di libri 1 0.23 11.93
Compositor, Intagiador da piere 1 0.23 11.70
Compositor alla stampa 6 1.38 11.47
Compositor 2 0.46 10.09
Cartoler 27 6.19 9.63
Carter 15 3.44 3.44
profession_code_strict Freq. Percent Cum.

17. Professions of the print “industry”
Carter
Cartoler
Compositor
Compositorallastampa
Compositor,Intagiadordapiere
Dallicanoni,Ligadordilibri
Farlibretidespechideminiar
Getadordacaratteridastampa
Intenirlibri
Librer
Librerdacartabianca
Librerdaconti,Librerdacartabianca
Librerdalibriastampa
Librerdalibriingreco
Librer,Getadordacaratteridastampa
Librer,Stampador
Ligadordalibri
Miniador
Stampador
Stampadorallecasse
Stampadorincarta
Stampador,Compositor
Stampador,Miniador
Stampador,Stampadorallecasse
Stampador,Torcoler
Stampator
Stampatoralcomponer
0
10
20
30
40

18. The case of the press0.05.1.15.2.25
Density
8 10 12 14 16 18
a_age
0.1.2.3.4
Density
0 5 10 15 20
annual_salary
0.05.1.15.2
Density
10 15 20 25
a_age
0.05.1.15.2.25
Density
4 6 8 10 12
annual_salary
Stampador al componer Stampador al torcolo

19. Regression analysis
What factors impact the salary globally?
• Quondam: father alive positive impact
• Age of apprentice: more aged better salary
• Date: moderate positive impact (inflation?)
• Length: longer contracts proportionally have less salary
• Who pays the salary: very strong positive impact if not
master

20. Network analysis: connected components
2 networks:
• Family relationships (mostly father-son)
• Contract relationships (master, apprentice,
guarantor)

21. Network analysis: connected components

22. Network analysis: connected components

23. Network analysis: connected components

24. Network analysis
Grazioso Percacino
Marco Antonio di Giacomo (stampador al componer)
Zampaulo
Battista di Piero (stampador al torcollo)
Giacomo Petrobelli
Anibal Petrobelli
Zuan Antonio Pasini
Zamaria Pasini
Orazio dei Gobbi
Matio da Tomet
Cristofolo Galas
Santo Patariol
Bertolamio Albarella
Battista da Luso
Francesco Rubin
Gerolamo di Uberti
Sprospero (tentor)
Santo di Domenico
Cabriel di Giacomo
Gerolamo di Giacomo (da Lonato)
Giacomo (da Lonato)
Bertolamio di Giacomo
Giacomo (de Trento della val de Eser)
Nicolò di Francesco 1
Francesco di Vicenzo 1
Zamaria di Andrea
Gaudentio di Gaudentio
Tomio di Battista
Bortolo (tirador)
Dorin di Durazo
Michiel di Noto Michiel
Giacomo Iusto
Anzolo di Gerolamo di Bernardo
Gerolamo di Bernardo
Marco di Vicenzo (grison)
Cristofolo di Gales
Antonio di Bertolamio (dalla Val di Sole)
Antonio Botoni
Durazo
Piero 2
Gales
Battista (trentin)
Francesco Pasini
Vicenzo (ceruico)
Giacomo 1
Bertolamio (dalla Val di Sole)
Domenico (da Nondena)
Noto Michiel
Eredi di Francesco Rubin
Gaudentio (grison)
Francesco di Uberti
Giacomo Albarella
Andrea (dal Garda)
Eredi di Bortolo (tirador)
Giacomo (da Valvasone)
Vicenzo da Tomet
Vicenzo (grison)

25. Data Modelling, Interoperability and Exploration
for the Garzoni Project
Grazie
Frédéric Kaplan, Giovanni Colavizza EPFL