GODOT (Graph of Dated Objects and Texts) A Calendar Gazetteer for Linked Open Data Applications

Dr. F. Grieshaber

Heidelberg Academy of Sciences and Humanities

Status Quo: Non-Gregorian Dates in Digital Editions

Kal(endis) Novembri[bus] / Sabino II et Anu/lino co(n)s(ulibus)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

Status Quo: Non-Gregorian Dates in Digital Editions

Kal(endis) Novembri[bus] / Sabino II et Anu/lino co(n)s(ulibus)=

1. November 216 AD

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

• GODOT: “Graph of Dated Objects and Texts”• Collaboration between

- Prof. M. Depauw / Dr. H. Verreth (KU Leuven, Trismegistos Project)- Dr. F. Grieshaber (Heidelberg Academy of Sciences & Humanities)- Prof. C. Roueché (King’s College London)

• 6 months prototype phase (July - December 2018)• supported by Andrew W. Mellon Foundation

GODOT – Overview

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

• is both a chronological gazetteer and a research infrastructure (searching & browsing / tools) aiming at scholars with focus on ancient chronology

• provides stable, citable URIs for instances of dates in major ancient calendar systems for Linked Open Data applications

• starting with sample data taken from:- Inscriptions of Roman Cyrenaica (C. Roueché)- papyri & ostraca in Berlin Collection (BGU, Trismegistos)

• testing of different data import options: manual data entry and bulk imports • tools on GODOT website:

- date conversions into Julian & Gregorian calendar- identifier tools for Roman Emperors, Roman Consulates- OpenRefine Reconciliation Services (Roman Consulates)- API for reusing GODOT data

GODOT – Overview (Features)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

- nodes (entities like person, place, event, …)- edges (relationship between nodes)

GODOT: “Graph of Dated Objects and Texts”

set of objects that are relatedGraph:

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

day11

monthChoiak

year15Hadrian

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

day11

monthChoiak

year15Hadrian Egypt.

CalendarRegnal

Year

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

day11

monthChoiak

year15Hadrian Egypt.

CalendarRegnal

YearTimeline

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

day11

monthChoiak

year15Hadrian Egypt.

CalendarRegnal

YearTimeline GODOTID 4711

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Data Model

Emperor Hadrian, year 15, month Choiak, day 11

day11

monthChoiak

year15Hadrian Egypt.

CalendarRegnal

YearTimeline GODOTID 4711

PHI227955

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

Manual data entry:• for “Inscriptions of Roman Cyrenaica” (IRCyr, Prof. C. Roueché)• project-specific data entry masks on GODOT website

• single year dates (regnal years of Roman emperors, Actian era, …)• Titulature of Roman emperors (Trib. Pot; Cos.; Imp.; victory titles)• Eponymous Officials

• allow for create/read/update/(delete) of data

Bulk import:1. Data Export by Content Provider• for Trismegistos (BGU Greek Papyri, Prof. M. Depauw & Dr. H. Verreth)

• preprocessing of data (NER workflow)• export in CSV• import into GODOT graph

2. Access via API of Content Provider• for Epigraphic Database Heidelberg (Roman Consulates; Tribunicia Potestas)• for Online Coins of the Roman Empire OCRE (Tribunicia Potestas)

GODOT – Data Model (Importing Data)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Browse Data by Drill-Down)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Browse Data by Drill-Down)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Browse Data by Drill-Down)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Browse Data by Drill-Down)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Date Conversions)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Date Conversions)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Identifier Tool)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Identifier Tool)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

GODOT – Website (Tools: OpenRefine Reconciliation Service)

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)

• Gazetteer: stable & citable URIs for chronological data• GODOT URIs for :

• reuse in Linked Open Data applications, TEI/EpiDoc XML or database projects• defining start/end point of periods (PeriodO, Chronontology) or events

• detail view/description of each date and all its attestations• browse through chronological data on GODOT website & find contemporaneous texts from various projects• visualize dates on a timeline to see contemporary dates/texts even if in a different calendar system• increased visibility of project and its data (by links from GODOT website back to project website)• tools related to dating texts (conversions, openRefine, identifier, API):

- Javascript widget

GODOT Summary

GODOT – Graph of Dated Objects and Texts (epigraphy.info workshop Zadar 15. December 2018)