Compare results from multiple sources

[nichtich]

Best might be storing quads and collecting in a Triple Store but a quick hack (compare.pl) already shows differences:

$ ./compare.pl 2>/dev/null
Quellen und Anzahl von Triplen mit Abruf-URI
b3kat.nt 47
dnb.nt 37
k10plus.nt 26
lobid.nt 24

Gleiche Properties in mehreren Quellen
      4 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
      4 <http://purl.org/ontology/bibo/edition>
      3 <http://www.w3.org/2007/05/powder-s#describedby>
      3 <http://www.w3.org/2002/07/owl#sameAs>
      3 <http://purl.org/ontology/bibo/oclcnum>
      3 <http://purl.org/dc/terms/medium>
      3 <http://purl.org/dc/terms/language>
      3 <http://purl.org/dc/terms/issued>
      3 <http://purl.org/dc/terms/creator>
      2 <http://purl.org/ontology/bibo/isbn>
      2 <http://purl.org/dc/terms/title>
      2 <http://purl.org/dc/terms/subject>
      2 <http://purl.org/dc/terms/publisher>
      2 <http://purl.org/dc/terms/isPartOf>
      2 <http://purl.org/dc/terms/extent>
      2 <http://purl.org/dc/terms/bibliographicCitation>
      2 <http://purl.org/dc/elements/1.1/title>
      2 <http://purl.org/dc/elements/1.1/subject>
      2 <http://id.loc.gov/vocabulary/relators/aut>

Gleiche Tripel in mehreren Quellen
      3 <http://example.org/> <http://purl.org/ontology/bibo/edition> "1. Aufl." .
      3 <http://example.org/> <http://purl.org/dc/terms/issued> "2007" .
      2 <http://example.org/> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Book> .
      2 <http://example.org/> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/dc/terms/BibliographicResource> .
      2 <http://example.org/> <http://purl.org/ontology/bibo/isbn> "9783518270042" .
      2 <http://example.org/> <http://purl.org/ontology/bibo/isbn> "3518270044" .
      2 <http://example.org/> <http://purl.org/dc/terms/title> "Sophistes" .
      2 <http://example.org/> <http://purl.org/dc/terms/publisher> "Suhrkamp" .
      2 <http://example.org/> <http://purl.org/dc/terms/language> <http://id.loc.gov/vocabulary/iso639-2/gre> .
      2 <http://example.org/> <http://purl.org/dc/terms/language> <http://id.loc.gov/vocabulary/iso639-2/ger> .
      2 <http://example.org/> <http://purl.org/dc/terms/extent> "496 S." .