Hi Rafa,
(reply inline)
On 18/09/12 16:04, Rafa Haro wrote:
Why are we speaking in English compañero?? :-). Just joking.
Should we switch to German? ;-)
Thanks for your reply. I already tried concat function, but it has a strange
behaviour. For the example in the previous email, you would get
something like this:
<arrname="concepts">
<str>Orange (fruit) - dbpedia-owl:Plant
<http://dbpedia.org/ontology/Plant> dbpedia-owl:Eukaryote
<http://dbpedia.org/ontology/Eukaryote> dbpedia-owl:Species
<http://dbpedia.org/ontology/Species></str>
<str> Citrus </str>
</arr>
That's it, all the types are concatenated to the first label.
RDF is a multi-typed data model, therefore rdf:type expression wuuld be
evaluated in LDPath as a set of elements. There is fn:first() function,
but was designed for selecting the first non-empty path between a set
them, not for a unique path with more than one result.
Within LMF it'd be easy for you to add a new function to LDPath for such
purpose, but no sure how to actually do it in Apache Stanbol.
I also tried this:
concepts = fn:concat(rdfs:label[@en]," ", .) :: xsd:string;
because for me is also valid to associate labels with the URI of the
entity, but neither I get the expected result.
Really? This worked for me:
concepts = fn:concat(rdfs:label, " ", .) :: xsd:string ;
Greetings,
El 18/09/12 15:38, Sergio Fernández escribió:
Hi Rafa,
maybe you could try fn:concat() [1] for such purpose (I didn't test it):
concepts = fn:concat(rdfs:label, " - ", rdf:type) :: xsd:string ;
Unfortunately there is no any current built-in function for generating
CURIEs, so you'll have to settle with the type full URI.
Kind regards,
[1]
http://code.google.com/p/ldpath/wiki/PathLanguage#Builtin:_String_Concatenation
On 18/09/12 14:45, Rafa Haro wrote:
Hi again,
I have now a question about LDPath. I need to store in Solr entities'
labels along with its types using LDPath. I know that it's not possible
to have nested fields in Solr, but I was trying to get something like
this:
<arrname="concepts">
<str>Orange (fruit) - dbpedia-owl:Plant </str>
<str> Citrus - dbpedia-owl:Plant</str>
</arr>
I have tried several combinations using LDPath concatenation function,
but I think it's definitely not possible.
Any good idea?
Thanks to all for the help
Regards
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