YAGO Exploration

Using one of the YAGO demo pages, we can explore the ontology a bit. To avoid being overwhelmed, let's pick a relatively unknown topic (Gaviota State Park) as our starting point.

Triples

Turtle sees everything as RDF triples (ie, Subject, Predicate, Object). However, it's more convenient for our purposes to think of these as attributes, outbound links, and inbound links.

Attributes

Predicate                     Object
=========                     ======
<hasArea>                     "1.128E7"^^<m^2>
<hasLatitude>                 "34.48"^^<degrees>
<hasLongitude>                "-120.2"^^<degrees>
<hasWikipediaArticleLength>   "6135"^^xsd:integer
<wasCreatedOnDate>            "1953-##-##"^^xsd:date

Predicate                     Object
=========                     ======
<hasWikipediaUrl>             <.../Gaviota_State_Park>
<isLocatedIn>                 <Santa_Barbara_County_California>
<isPreferredMeaningOf>        "Gaviota State Park"@eng
<linksTo>                     <California>
<redirectedFrom>              "Gaviota"@eng
owl:sameAs                    <.../Gaviota_State_Park>
rdf:type                      owl:Thing
rdfs:label                    "Gaviota State Park"@eng
skos:prefLabel                "Gaviota State Park"@eng

Subject                       Predicate
=======                       =========
<California_State_Route_1>    <linksTo>
<Gaviota_Tunnel>              <isLocatedIn>

The following diagram ignores the attributes, but shows the selected node and its immediate neighbors in the graph:


This wiki page is maintained by Rich Morin, an independent consultant specializing in software design, development, and documentation. Please feel free to email comments, inquiries, suggestions, etc!

Topic revision: r3 - 04 Apr 2016, RichMorin
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