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Welcome to the rdf-crowdsourced-quality-checker wiki!

This project is crowdsourcing middleware for linked data. It receives a task request from a broker, enriches the task with data from a sparql endpoint and creates a task in Pybossa. The following image shows how an enriched task is presented to a crowd worker:

Setup

There are two subfolders in this repository. In bike-racks lives the Pybossa project definition. In bike-rack-linker is a play application which enriches and creates pybossa tasks.

Pybossa

1. Install the Pybossa development server.
2. Setup the Pybossa command line client (py2 only).
3. Change directory to bike-racks and add the project to the Pybossa Server
   1. pbs create_project
   2. pbs add_tasks --tasks-file test-data.json
   3. pbs update_project --watch

PybossaRDFAdapter

1. Install Sbt 1.0.
2. Clone the repository.
3. Define environment in application.conf.
4. cd rdf-crowdsourced-quality-checker/bike-rack-linker
5. sbt run

Architecture

The properties are queried with the Java-RDF Mapper module.

Api

• to Broker
  • linkEvaluationRequest
  • publishResult
• to Quadstore
  • queryProperties

Disambiguation Result

todo

Todos

Are on Trello

Ressources

• Sequence Diagramm
• Pybossa
• tombatossals (David Rubert)
• Bike-Racks in Italy Ckan
• LinkedGeoData mappings
• OpenStreetMap bicycle amenity
• GeoFabrik Trento area

Orion Context Broker

• Forbidden characters - Fiware-Orion
• amaxilat/orion-client: Java Client for the Orion Context Broker Publish/Subscribe Context Broker GE
• fiware/orion - Docker Hub