DBpedia & UMBEL are now fully connected

[Kingsley Idehen]

All,
As was the case earlier this year re. Yago, we've now enriched DBpedia 
with UMBEL linkage. Of vital relevance is the fact this effort isn't 
solely about instance to instance linkage (owl:sameAs), it also 
addresses the vital Entity Type linkage (via rdf:type) so that all 
DBpedia instances (individuals) can *optionally* inherit the structural 
richness of UMBEL via *optional* inference rules.

Here are the steps perfromed:

-- Load UMBEL & DBpedia Instance Level Cross-Links (owl:sameAs) Triples
select ttlp_mt (file_to_string_output ('umbel_dbpedia_linkage_v071.n3'), 
'', 'http://dbpedia.org');

-- Load UMBEL and DBpedia Type (rdf:type) association Triples
select ttlp_mt (file_to_string_output ('umbel_dbpedia_types_v071.n3'), 
'', 'http://dbpedia.org');

--- Load UMBEL Subject Concept Class Hierarchy into a Named Graph
select ttlp_mt (file_to_string_output ('umbel_class_hierarchy_v071.n3'), 
'', 'http://dbpedia.org/resource/classes/umbel#');

-- Load UMBEL External Ontology Mapping into a Named Graph (*Equivalent 
Classes*)
select ttlp_mt (file_to_string_output 
('umbel_external_ontologies_linkage.n3'), '', 
'http://dbpedia.org/resource/classes/umbel#');

-- Create UMBEL Inference Rules

rdfs_rule_set ('http://dbpedia.org/resource/inference/rules/umbel#', 
'http://dbpedia.org/resource/classes/umbel#');


-- Test Query 1
define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
select ?s
where
{
?s a umbel:RoadVehicle
}

-- Test Query 2

define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
select ?s
where
{
?s a umbel:Automobile_GasolineEngine
}

-- Test Query 3
define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
select ?s
where
{
?s a  umbel:Project
}

-- Test Query 4
define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
select ?s
where
{
?s a  umbel:Person
}

-- Test Query 5

define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
select ?s
where
{
?s
  a  umbel:Graduate;
  a  umbel:Boxer.
}

-- Test Query 6
define input:inference 'http://dbpedia.org/resource/inference/rules/umbel#'
prefix umbel: <http://umbel.org/umbel/sc/>
prefix yago: <http://dbpedia.org/class/yago/>
select ?s
where
{
?s a  yago:FemaleBoxers;
  a  umbel:Graduate;
  a  umbel:Boxer.
}


Links:

1.  http://umbel.org/documentation.html  - Linkage files


--


Regards,

Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com