Re: DBLP Sparql Endpoint

Indeed, but i assume (please tell me if I'm wrong) that he needs to
intercept the capital letter for the surname, so a startsWith maybe will
not work.


2014-04-04 12:24 GMT+02:00 Jerven Bolleman <me@jerven.eu>:

> Also have a look at the
> http://www.w3.org/TR/sparql11-query/#func-strstarts
> function instead of a REGEX. Can give a small perf increase.
>
> Regards,
> Jerven
>
>
> On 04 Apr 2014, at 11:34, Alfredo Serafini <seralf@gmail.com> wrote:
>
> > Hi for me seems to work, for example using instead:
> >
> > SELECT DISTINCT * WHERE {
> > ?a a foaf:Agent .
> > ?a foaf:name ?n .
> > FILTER  regex(?n, '^(.+\\s+)*b', 'i')
> > }
> > LIMIT 10
> >
> > I obtain as the first threee results the following ones:
> > "(Zhou) Bryan Bai"
> > "A-Reum Bae"
> > "A. A. (Louis) Beex"
> >
> > If you want to work with surname the problem is related to the fact that
> all the data (name, surname) are in the foaf:name field, so that the only
> way seems to use a more specific regex, for example excluding the first
> part which can be something like "A. ", "B. A." or similar...
> >
> >
> >
> >
> > 2014-04-04 10:11 GMT+02:00 Wetz Peter <peter.wetz@tuwien.ac.at>:
> > Dear all!
> >
> >
> >
> > I would like to use the DBLP Sparql Endpoint at [1] to retrieve
> publications of authors by REGEX Search. This, however, seems not to work
> as expected.
> >
> >
> >
> > This query returns authors starting with an “A”:
> >
> >
> > SELECT DISTINCT * WHERE {
> >
> > ?a a foaf:Agent .
> >
> > ?a foaf:name ?n .
> >
> > FILTER  regex(?n, '^a', 'i')
> >
> > }
> >
> > LIMIT 10
> >
> >
> >
> > This query should return authors starting with a “B”:
> >
> >
> >
> > SELECT DISTINCT * WHERE {
> >
> > ?a a foaf:Agent .
> >
> > ?a foaf:name ?n .
> >
> > FILTER  regex(?n, '^b', 'i')
> >
> > }
> >
> > LIMIT 10
> >
> >
> >
> > This does not return any results, and I don’t know why. Actually, it’s
> not working with any other letter except “A”. What I simply want to do is,
> to search for authos based on an input string.
> >
> >
> >
> > Maybe, somone of you can help.
> >
> >
> >
> > Thanks in advance,
> >
> > Peter
> >
> >
> >
> > [1] http://dblp.l3s.de/d2r/snorql/
> >
> >
>
>