Drupal Day 2011 - Thinking spatially with your open data
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Thinking spatially with your open data“Spatial data deluge: please bring me an
umbrella!”Juan Arévalo, Marco Giacomassi
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Data is everywhere...
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- Decreto Legislativo 32/2010 di recepimento della Direttiva Inspire
- Metadata, interoperability, Web services, standards, data specifications, etc..
• Infrastructure for spatial information in Europe to support Community environmental policies:
Inspire Directive
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Cost:
Total direct cost: 1.5 M € (76% Human Resources)Period: 2002-2006
Benefits:
Internal efficiency benefits: 500 hours per month (30€ hour)Recovery cost: 6 months
Is it worth it??
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Open Data Movement
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Open Data Applications
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Spatial Data Infrastructures and Open Data
- About making data available- Data should be freely available
Two sides of the same coin:
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Everything can be mapped!!
80% of the data has a spatial component
Data exploration and analysis through spatial operations
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Spatial Data Formats
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Programming languages
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GIS Desktop Tools
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Spatial Databases
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Web Mapping Clients
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Data processing...
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Data mining tools: Business Intelligence
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Spatial ETL ToolsExtract, automate and define a data flow process
Translate spatial data into the format that the end consumer requires
Load and integrate disparate data into a spatial database
Document your processing data steps
Execute process in a Parallel Computing Environment
Restructure the data into the required data model and coordinate system
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The umbrella...
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Spatial data cubes
- Store geometry in a data cube- Spatial query language (MDX)
- View agreggated data from different perspectives- Fast retrieval and anlysis of data
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SOLAP Clients
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SOLAP Clients
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Spatial OLAP & Drupal
data feed
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Spatial OLAP & Drupal
data feed
S. ETL
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Spatial OLAP & Drupal
data feed workflow management
S. ETL DB S. CUBE
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Spatial OLAP & Drupal
data feed workflow management frontend
S. ETL DB S. CUBE
geojsp
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Conclusions
1. Huge amount of data with a spatial component that needs to be explored and analysed.
2. Availability and maturity of open source technologies and Know-how: OLAP and Geographical Information Systems (GIS).
3. Spatial OLAP merging OLAP and GIS via Open Source Tools.
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Links and References
http://www.spatialytics.org/projects/geomondrian/http://www.spatialbi.orghttp://www.spatialytics.comhttp://www.geobi.orghttp://inspire.jrc.ec.europa.eu/reports/Study_reports/catalonia_impact_study_report.pdf
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Questions?
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Contacts
Marco Giacomassimail: [email protected]: @marcogiaco
Juan Arevalomail: [email protected]: NO!
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Thank you!Grazie mille!
Muchas gracias!
“In the middle of difficulty lies
opportunity.”
Albert Einsten
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