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POHow to know if a string is a proper name of person or a place name using DBpedia?
 

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  1. POHow to know if a string is a proper name of person or a place name using DBpedia?
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    <p>I am using SPARQL query on DBpedia into a Prolog project and I have a doubt. I would know if a word is, most probably, a <strong>NAME OF A PERSON</strong> (something like: John, Mario) or a <strong>PLACE</strong> (like a city: Rome, London, New York).</p> <p>I have implement the following two queries, the first gives me the number of persons having a specific name, and the second gives me the number of places having a specific name.</p> <p><strong>1) Query for a PERSON NAME:</strong></p> <pre><code>select COUNT(?person) where { ?person a dbpedia-owl:Person . { ?person foaf:givenName "John"@en } UNION { ?person foaf:surname "John"@en } } </code></pre> <p>For the name <strong>John</strong>, I obtain the following output: <strong>callret-0: 7313</strong>, so I think that it has found 7313 instances for the proper name John. Is it right?</p> <p><strong>2) Query for a PLACE NAME:</strong></p> <pre><code>select COUNT(?place) where { ?place a dbpedia-owl:Place . { ?x rdfs:label "John"@en } } </code></pre> <p>The problem is that, as you can see in the previous “place” query, I have inserted <strong>John</strong> as parameter, which is not a place name but a proper name of persons, but I obtain the following strange result: <strong>callret-0: 81900104</strong></p> <p>The problem is that, in this way, if I compare the output of the previous two queries, it seems that John is a place and not a person name! This is not good for my scope; I have tried with other personal names and it always happens that the place query gives me a bigger output than the name query.</p> <p>Why? What am I missing? Are there some errors in my queries? How can I solve it to have a correct result?</p>
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    1. USJoshua Taylor
    1. USAndreaNobili
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