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Re: Frequency List of resources and properties

From: Jeremy Wong <50263336@student.cityu.edu.hk>
Date: Wed, 30 Mar 2005 12:48:42 +0800
To: Yuzhong Qu <yzqu@seu.edu.cn>
Cc: SWIG <semantic-web@w3.org>
Message-id: <002d01c534e3$bfd5fd60$6502a8c0@miko947ymju833>
Your intuition applies on RDF schema without entailments. It seems that there can be different statistics for different purpose. For examples, a statistics for RDF in general, a statistics for RDFS, for OWL, and statistics for various ontologies, RDF closures.

It is likely that there can be a statistics for each ontology. When ontologies are merged together, a merge of the statistics of the ontologies may be useful. However, how to merge statistics?

BTW, my objective to use the statistics is for indexing triggers, providing that there is a pool of rules for real-time inference.


Jeremy
  ----- Original Message ----- 
  From: Yuzhong Qu 
  To: Jeremy Wong 
  Cc: SWIG 
  Sent: Wednesday, March 30, 2005 10:24 AM
  Subject: Re: Frequency List of resources and properties


  This is one of the works planned  in our Group. Hopefully, the statistics will be given around Oct. this year.

  Frankly,  your list is not fit with my intuition.

  Intuitively, the following classes and properties have high frequency of use

  rdfs:Class
  rdf:Property

  rdfs:subClassOf
  rdfs:domain 
  rdfs:range
  rdfs:subPropertyOf


  BTW,  the statistics model ( and objectives) is not easy to established,  and the ontoloy capturing  is also a hard stuff.  


  Any comment is welcome!


  Yuzhong Qu

    ----- Original Message ----- 
    From: Jeremy Wong 
    To: semantic-web@w3.org 
    Sent: Wednesday, March 30, 2005 2:50 AM
    Subject: Frequency List of resources and properties


    I want to make a list of resources and a list of properties, order by frequency of use. It would be grateful if you can help on improving the lists and even add new item to the lists.

    A list of resource (exclude properties):

    -- higher frequency
    rdfs:Resource
    rdf:Property
    rdfs:Class
    rdfs:Literal
    rdf:List

    -- lower frequency
    rdf:Alt
    rdf:Bag
    rdf:Statement
    rdf:Seq
    rdf:XMLLiteral
    rdfs:Container
    rdfs:ContainerMembershipProperty
    rdfs:Datatype
    owl:AllDifferent
    owl:AnnotationProperty
    owl:Class
    owl:DataRange
    owl:DatatypeProperty
    owl:DeprecatedClass
    owl:DeprecatedProperty
    owl:FunctionalProperty
    owl:InverseFunctionalProperty
    owl:Nothing
    owl:ObjectProperty
    owl:Ontology
    owl:OntologyProperty
    owl:Restriction
    owl:SymmetricProperty
    owl:Thing
    owl:TransitiveProperty

    A list of properties:

    -- higher frequency
    rdf:type
    owl:sameAs
    rdf:first
    rdf:rest
    rdf:nil
    rdfs:domain
    rdfs:range
    rdfs:member
    rdfs:subPropertyOf
    rdfs:subClassOf

    -- lower frequency
    rdf:object
    rdf:predicate
    rdf:subject
    rdf:value
    rdfs:comment
    rdfs:isDefinedBy
    rdfs:label
    rdfs:seeAlso
    owl:allValuesFrom
    owl:backwardCompatibleWith
    owl:cardinality
    owl:complementOf
    owl:differentFrom
    owl:disjointWith
    owl:distinctMembers
    owl:equivalentClass
    owl:equivalentProperty
    owl:hasValue
    owl:imports
    owl:incompatibleWith
    owl:intersectionOf
    owl:inverseOf
    owl:maxCardinality
    owl:minCardinality
    owl:oneOf
    owl:onProperty
    owl:priorVersion
    owl:someValuesFrom
    owl:unionOf
    owl:versionInfo

    Frankly speaking, I don't have much statistics data and I am even lazy to produce one (my time is too tight.. my priority may not allow so.. work->study->work->study->... -_- and I am not too smart -_-...). The above 2 lists are my prediction only, modification with ground is totally welcome.


    Jeremy
Received on Wednesday, 30 March 2005 04:49:45 UTC

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