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named entity annotation / certainty / provenance

From: James Chartrand <jc.chartrand@mac.com>
Date: Thu, 16 Aug 2012 09:28:54 -0400
Message-id: <0CAF2A8C-D836-48A6-9B9B-E5EA9EB23061@mac.com>
To: public-openannotation@w3.org
We're annotating named entity references (to people, places, events, organizations) in text like so:

<AnnoA> a oa:Annotation ;
   oa:hasTarget <urn:uuid:CB37E17E-B1EF-48CE-B098-0CE8FAA86A6D> ;
   oax:hasSemanticTag <http://dbpedia.org/page/MrJones> ;
   oa:annotator <http://somewhere.ca/people/JamesChartrand> ;
   oa:annotated "2012-08-15T12:10:54Z" ;
   oa:generator <someSoftwareURI> ;
   oa:generated "2012-08-15T12:10:54Z" ;
   oa:modelVersion <http://openannotation.org/spec/core/20120509> .
  <urn:uuid:CB37E17E-B1EF-48CE-B098-0CE8FAA86A6D> a oa:SpecificResource ;
    oa:hasSource <http://somewhere.ca/work/345345> ;
    oa:hasSelector <urn:uuid:2ADFF7EE-AB19-4BA3-94EC-55EE0BA645C2> .
  <urn:uuid:2ADFF7EE-AB19-4BA3-94EC-55EE0BA645C2> a oax:TextOffsetSelector ;
    oax:offset 244 ;
    oax:range 7 .
  <http://somewhere.ca/work/345345> a dctypes:Text .
 Three questions:
1.  Does this seem right?
2.  We'd like to assert the confidence with which we're annotating -- how certain we are that this reference is to the given person.  Are there any recommendations for asserting certainty?

3.  Should the oa provenance predicates be used in preference to the PROV ontology (http://www.w3.org/TR/prov-o/) or can PROV be used interchangeably?  Is PROV recommended for provenance predicates not covered by OA?  Any plans to move to PROV entirely?
Thank you,

Received on Thursday, 16 August 2012 13:59:51 GMT

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