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- ontopic.owl description "An ontology of topics as used in thesauri, subject directories, etc.".
- ontopic.owl language eng.
- ontopic.owl language ita.
- ontopic.owl modified "2010-02-05".
- ontopic.owl title "Ontopic Ontology".
- ontopic.owl hasReview BX2D63e01bc9X3A149d30d2615X3AX2D7731.
- ontopic.owl hasReview BX2D63e01bc9X3A149d30d2615X3AX2D7732.
- ontopic.owl preferredNamespacePrefix "ontopic".
- ontopic.owl preferredNamespaceUri "http://www.ontologydesignpatterns.org/ont/dul/ontopic.owl#".
- ontopic.owl type Vocabulary.
- ontopic.owl type Ontology.
- ontopic.owl comment "An ontology of topics as used in thesauri, subject directories, etc.\nTopic is classified as a subclass of Collection, since its extensional semantics can be intended as a set of social objects (e.g. texts, concepts, other collections, relational meanings, etc.). Its intensional semantics is intended as an area of knowledge (or culture).\n\nThe ontology is partly based on Chris Welty's formal ontology of subjects (DKE, 1999). Subtopic, near, and far relations are pretty similar to the ones defined there. The main differences are:\n- topics are intended here as collections of social objects, not as regions; there is anyway a morphism to the mereo-topological notion of Welty's, since for each topic as a collection we can define a topic space (a subclass of dul:Region) that corresponds to Welty's topics;\n- subjects in Welty's ontology, which are points in a topic region, are intended here in two ways:\n(1) as a dul:SocialObject that hasTopic a Topic. A dul:SocialObject in this case contains references to any entity that (in Welty's terms) 'is about' a topic\n(2) as a Subject, which is characterized here as a subclass of Topic, which isTopicOf exactly 1 dul:SocialObject\n\nFor example, in Welty's theory, given a football event, there can be a subject for that event that is a point in the space of a topic, e.g. 'football'. In this ontology, this is represented as a dul:Event (the actual football event) that dul:isReferenceOf some dul:InformationObject (e.g. a report or article about the football event); such information object hasTopic a Topic (e.g. football). \nTherefore, this solution has specific counterparts to Welty's theory, although the intuition is very different: Welty's topics correspond here to Topic(s), Welty's subjects correspond here to parts of Topic(s), and Welty's individual entities in a domain ontology correspond here to any Entity that dul:isReferenceOf a dul:InformationObject that dul:expresses a dul:SocialObject that hasTopic a Topic.\n\nOn the other hand, a geometrical conception of topics, for example the one assumed by LSA (Latent Semantic Analysis), might take advantage from the addition of topic spaces into the ontology, because one could use dimensional space operators, as well as take input and produce outputs into an ontology by reasoning over topic spaces.\nFor this reason, in this version of the ontopic ontology, we also provide the classes TopicSpace and SubjectSpace, and link them to Topic(s) through the relation dul:isRegionFor; the advantage is that we have a dual encoding of topics, which get either a commonsensical semantics as collections of documents, notions, or any other dul:SocialObject, or a mereotopological semantics as dul:Region(s). The second semantics can be used jointly with LSA geometrical semantics.".
- ontopic.owl comment "TODO: remove LMM imports from within the ontology.".
- ontopic.owl label "Ontopic ontology".
- ontopic.owl imports LMM_L1.owl.
- ontopic.owl imports LMM_L2.owl.
- ontopic.owl versionInfo "1.5".
- ontopic.owl versionInfo "Version 1.2\nChanges in 1.1: added a dimensional space to topics that follows Welty's theory: the new classes are TopicSpace and Subject.\nChanges in 1.2: added English labels. Added abstract topic spaces and subjects as from Welty's formal ontology of subject.\nAdded in 1.3: difference between Subject and SubjectSpace, which reflects that between Topic and TopicSpace.\nAdded in 1.4: the notion of TopicalSignature, which refers to the set of lmm1:Expression(s) that can populate a Topic. E.g. the entries from Roget's, Moby, SenseCorpus, etc. are signatures for a Topic.\nChanges in 1.5: changed domain of hasTopic property to dul:Entity, added subproperty axioms for topic-oriented properties".
- ontopic.owl distribution file_ontopic_2009-06-05.n3.
- ontopic.owl distribution file_ontopic_2010-02-05.n3.
- ontopic.owl keyword "Vocabularies".