DBpedia Client for Ruby

Features

• Search for Dbpedia entries by keyword or prefix (e.g. autocompleter)
• Use SPARQL via Ruby RDFs great sparql-client to query Dbpedia

Installation

Simply add it to your Gemfile:

gem "dbpedia"
gem "sparql-client" # if you want to use sparql

Examples

Search by keyword and prefix (notice their different results)

# Default search is by keyword:
Dbpedia.search('Ham').collect(&:label)
Dbpedia.search('Ham', method: 'keyword').collect(&:label)
#=> ["West Ham United F.C.", "Ham", "West Ham", "East Ham", "Hamarkameratene"]

# To perform a prefix-search (which is usefull for autocompleter) pass `method`:
Dbpedia.search('Ham', method: 'prefix').collect(&:label)
#=> ["Hamburg", "Hampshire", "Hamlet (place)", "Hamlet", "Hamilton, Ontario"]

Fetch search details

results = Dbpedia.search('Hamburg')
puts results.first.label #=> "Hamburg"
puts results.first.categories.count #=> 15
puts results.first.categories.first.label #=> Populated places established in the 9th century"

Possible methods

[results] (SearchResult)
|-- label
|-- uri
|-- description
+-- [categories] (SearchResult::Category)
|   |-- label
|   |-- uri
+-- [classes] (SearchResult::Klass)
    |-- label
    |-- uri

SPARQL Queries

Marke sure you've installed sparql-client!

Dbpedia.sparql.select.whatever

Milestones

• Implement find for known resources
• Gemify

Specs

Run $ bundle exec rspec -c

Gloss

Copyright © 2013 Roman Ernst, released under CC BY-SA 3.0 license

.. without warranty of any kind!