These CKAN Versions are exactely matched:

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.10.5
• 2.10.6
• 2.10.7
• 2.10.8
• 2.10.9
• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3
• 2.11.4
• 2.12.0
• 2.9.0
• 2.9.0a
• 2.9.1
• 2.9.10
• 2.9.11
• 2.9.13
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9

Extracting semantic data of CKAN – ckanext-semantic

A extension for CKAN

Features

• enhanced search (search after vocabularies, classes, properties, geographical and temporal coverage)
• new search type: SPARQL
• new subscription type: SPARQL subscriptions
• enriched dataset page (used vocabularies, geographical and temporal coverage)
• similar datasets
• personalized recommendations

Installation instructions

• install Virtuoso v6
• install FedX v2 (in case of more than 1 endpoint)
• apply db.sql file to add necessary tables

• install LODStats and Redland rdflib::

  pip install -e git+https://github.com/srkunze/ckanext-semantic#egg=ckanext-semantic pip install -e git+https://github.com/srkunze/LODStats#egg=lodstats

• add to your CKAN configuration file::

  add this to your plugins

  ckan.plugins = semantic

  constants for dataset statistics update

  ckan.semantic.waiting_time = 1 ckan.semantic.ratio_old_new = 0.4

  credentials for sparql clients (for delete and insert)

  pattern: SPARQL_{attribute}_{role}; attribute in [username, password, hostname]; role in [root]

  ckan.semantic.SPARQL_username_root = dba ckan.semantic.SPARQL_password_root = dba ckan.semantic.SPARQL_hostname_root = localhost

  federation tool fedX required

  ckan.semantic.FedX = {path to your FedX}/lib/*

  endpoints

  pattern: SPARQL_endpoint# from 0 to 20

  ckan.semantic.SPARQL_endpoint1 = http://localhost:8890/sparql ckan.semantic.SPARQL_endpoint1_name = CKAN Store ckan.semantic.SPARQL_endpoint2 = http://dbpedia.org/sparql ckan.semantic.SPARQL_endpoint2_name = DBPedia Store

• create CRON jobs to run these commands on a periodical basis::

  paster semantic update_dataset_due_statistics –config=../ckan/development.ini paster semantic update_dataset_statistic