SlideShare a Scribd company logo
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Building Historical Geographical
Datasets with DBpedia
Normal Primary Theme
15/04/2015
Odhran Gavin, ALIGNED
Trinity College Dublin
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
• Spans 1780-2010
• 1828 reports on 1599 events
• Events have category (assassination, riot, etc.) and
motivation (race, military, labour, etc.)
• The data is messy
United States Political Violence
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Initial Visualisation
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Google Maps Visualisation
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
• Source data has specific location information (eg Tangipahoa, St.
Helena Parish, LA)
• Initial uplift only captures some of this (LA – Louisiana)
• Capturing more specific locations improves data quality
• How do we discriminate?
Improving data quality
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
• Solution – semi-automated processes
• Automated processes identify the most likely match
candidates
• Humans then choose the correct candidate
• Created two tools for semi-automated geographical data
improvement
• Table-based
• Map-based
• Rajan Verma, TCD MSc student
Improving data quality
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Improving data quality
Table view
Map view
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Improving data browsing
• Initial implementation of USPV browsing
• Does not provide users with a way to visualise data spatially
• Looks dull
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Improving data browsing
• Balazs Pete, TCD MSc student
• Allows users to easily select interesting subsets of data
• Users can visualise spatial relations
• Easy to use
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055.
Thank you
Odhran Gavin, ALIGNED
gavino@tcd.ie

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Building Historical Geographical Datasets with DBpedia

  • 1. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Building Historical Geographical Datasets with DBpedia Normal Primary Theme 15/04/2015 Odhran Gavin, ALIGNED Trinity College Dublin
  • 2. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. • Spans 1780-2010 • 1828 reports on 1599 events • Events have category (assassination, riot, etc.) and motivation (race, military, labour, etc.) • The data is messy United States Political Violence
  • 3. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Initial Visualisation
  • 4. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Google Maps Visualisation
  • 5. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. • Source data has specific location information (eg Tangipahoa, St. Helena Parish, LA) • Initial uplift only captures some of this (LA – Louisiana) • Capturing more specific locations improves data quality • How do we discriminate? Improving data quality
  • 6. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. • Solution – semi-automated processes • Automated processes identify the most likely match candidates • Humans then choose the correct candidate • Created two tools for semi-automated geographical data improvement • Table-based • Map-based • Rajan Verma, TCD MSc student Improving data quality
  • 7. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Improving data quality Table view Map view
  • 8. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Improving data browsing • Initial implementation of USPV browsing • Does not provide users with a way to visualise data spatially • Looks dull
  • 9. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Improving data browsing • Balazs Pete, TCD MSc student • Allows users to easily select interesting subsets of data • Users can visualise spatial relations • Easy to use
  • 10. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 644055. Thank you Odhran Gavin, ALIGNED gavino@tcd.ie