daniel/migrants
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Author SHA1 Message Date
Daniel Hernandez
3d0829aa9d Add Step 5: use well-known vocabularies (Schema.org, OWL, WGS84, SKOS) 
SPARQL UPDATE queries add standard vocabulary properties alongside
existing custom predicates: schema:Person/Place/Organization types,
schema:givenName/familyName/birthDate, owl:sameAs for authority links,
wgs84:lat/long for coordinates, skos:Concept/prefLabel for enumerations,
and rdfs:label for persons.
 2026-03-01 12:07:01 +01:00
Daniel Hernandez
28eb1e7cfd Add Step 4: remove empty string literals representing missing data. 2026-02-28 19:07:36 +01:00
Daniel Hernandez
1c15bc8cf7 Add Step 3: annotate literal datatypes (xsd:date, xsd:float, xsd:integer, IRIs). 2026-02-28 18:49:35 +01:00
Daniel Hernandez
0813192990 Add Step 2 example queries and Rake tasks. 
Same 1-hop and 2-hop CONSTRUCT queries as Step 1, but run against
graph-02.ttl to show the result of literal-to-IRI transformations.
 2026-02-28 17:50:26 +01:00
Daniel Hernandez
0c1da570bb Add prefixes to SPARQL queries and prettify example Turtle output. 
Add namespace prefixes (rdfs, migrants, person, personp, work, workp,
location, locationp) to query files. Use --prettify in Rake tasks so
example files use abbreviated IRIs. Fix 2hop task to use graph-02.
 2026-02-28 17:37:52 +01:00
Daniel Hernandez
6870f9b726 Add Rake tasks to generate 1-hop and 2-hop example extracts. 2026-02-28 09:06:36 +01:00
Daniel Hernandez
e81120d353 Add pipeline steps (graph-01, graph-02) to Rakefile. 2026-02-28 08:18:04 +01:00
Daniel Hernandez
aaab3d352c Renaming files 2026-02-22 19:06:30 +01:00
Daniel Hernandez
df9f12365c Rename Turtle file. 2026-02-22 18:55:29 +01:00
Daniel Hernandez
eb255df64a Create a Rakefile. 2026-02-22 18:40:33 +01:00