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Re: LOD Cloud Cache Stats

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Mon, 04 Apr 2011 09:51:32 -0400
Message-ID: <4D99CCE4.9030306@openlinksw.com>
To: Dave Reynolds <dave.e.reynolds@gmail.com>
CC: "public-lod@w3.org" <public-lod@w3.org>, "semantic-web@w3.org" <semantic-web@w3.org>
On 4/4/11 9:37 AM, Dave Reynolds wrote:
> On Mon, 2011-04-04 at 09:14 -0400, 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
> That's odd.
>
> The ordnancesurvey data has two xsd:integer (spatialrelations:easting
> and spatialrelations:northing) and two xsd:decimal (geo:lat and
> geo:long) instances for every postcode:Postcode instance.
>
> So I would have expected at least 3,392,070 xsd:integer and xsd:decimal
> values in the counts if there are that many postcode:Postcode instances.
>
>> 70194534http://www.openlinksw.com/schemas/virtrdf#Geometry
>> 120147725http://www.w3.org/2001/XMLSchema#string
>>
>> Spreadsheet will be updated too.
>>
>
> Dave
>
>
>
>
Dave,

I need to double check state of Ordnance Survey data. The entire system 
was reloaded about two weeks ago, so it isn't impossible that we could 
be missing some data re. Ordnance Survey.

We'll look into it.

-- 

Regards,

Kingsley Idehen	
President&  CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
Received on Monday, 4 April 2011 13:52:10 GMT

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