On 4/4/11 10:06 AM, Nathan wrote:
Kingsley Idehen wrote:
On 4/3/11 11:41 PM, Nathan wrote:
Hi Kinglsey, All,
Incoming open request, could anybody provide similar statistics for
the usage of each datatype in the wild (e.g. the xsd types,
xmlliteral and rdf plain literal)?
Ideally Kingsley, could you provide a breakdown from the lod cloud
cache? would be very very useful to know.
Best & TIA,
Nathan
Kingsley Idehen wrote:
I've knocked up a Google spreadsheet that contains stats about our
21 Billion Triples+ LOD cloud cache.
...
https://spreadsheets.google.com/ccc?key=0AihbIyhlsQSxdHViMFdIYWZxWE85enNkRHJwZXV4cXc&hl=en
-- LOD Cloud Cache SPARQL stats queries and results
Nathan,
The typed literals used in> 10k triples:
count datatype IRI
11308 xsd:anyURI
12553http://dbpedia.org/datatype/day
12788http://dbpedia.org/ontology/day
15875http://dbpedia.org/ontology/usDollar
18228http://dbpedia.org/datatype/usDollar
20828http://europeanaconnect.eu/voc/fondazione/sgti#fondazioneNot
22934http://statistics.data.gov.uk/def/administrative-geography/StandardCode
23368http://www.w3.org/2001/XMLSchema#date
30695http://dbpedia.org/datatype/inhabitantsPerSquareKilometre
31662http://dbpedia.org/datatype/second
35506http://dbpedia.org/datatype/kilometre
57409http://www.w3.org/2001/XMLSchema#int
160117http://stitch.cs.vu.nl/vocabularies/rameau/RecordNumber
632256http://www.w3.org/2001/XMLSchema#anyURI
1175435 xsd:string
1696035http://data.ordnancesurvey.co.uk/ontology/postcode/Postcode
70194534http://www.openlinksw.com/schemas/virtrdf#Geometry
120147725http://www.w3.org/2001/XMLSchema#string
Spreadsheet will be updated too.
Thanks Kingsley, very much appreciated! :)
I have to admit I'm surprised by the lack of xsd:double and
xsd:decimal in the two stats sets, and also the inclusion of some
datatypes I'd never even heard of!
Are there any virtuozo specific nuances which do some conversion, or
are all of these as found in the serialized RDF?
also is xsd:string automatically set for all plain literals (with /
without langs?)
Cheers,
Nathan
Data comes from internal table in Virtuoso. Note, a threshold has been
set so what you are seeing is a picture relative to the total amount of
data (21 Billion+ triples).
--
Regards,
Kingsley Idehen
President& CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
