Hi Lukas,
Having a thousand xml-files of the Van Gogh Letters, I want to query them like this:
Given the letters from Arles, how many letters have the term 'Gauguin'?
Or: Given the letters from Arles, how many letters have the term 'Gauguin AND Pissarro'?
I give you an earlier solution of Leonard from the BaseX mailing -list, which might be useful to you.
let $range := 1 to 640
for $doc in collection('brievenvangogh')
let $uri := base-uri($doc),
$num := substring($uri, string-length($uri) - 6, 3)
where $num castable as xs:integer
and xs:integer($num) = $range
return <document uri='{$uri}'>{
for $n score $s in $doc//*[text() contains text 'gauguin']
return <hit score='{$s}'>{ $n }</hit>
}</document>
Can you see from the query, printed in blue, whether it gives the tf/idf score?
While making the database I checked the td/idf score in the full text search option.
Regards,
Wiard
2011/5/20 Wiard Vasen
<wiard.vasen@gmail.com>
Hi Lukas,
Thanks a lot for your help!
Regards,
Wiard
2011/5/20 Lukas Kircher
<lukaskircher1@googlemail.com>
Hi Wiard,
But what if I want what is in the 'idno' ? <idno type="jlb">012</idno>
Or : <vg:placeLet>London</vg:placeLet>
declare namespace ns = "http://www.tei-c.org/ns/1.0";
//ns:idno
... and this:
//ns:placeLet
Concerning your last email I guess you already figured it out yourself,
right? Otherwise, just let me know.
Have a nice day, regards,
Lukas
On Fri, May 20, 2011 at 10:26 AM, Wiard Vasen
<wiard.vasen@gmail.com> wrote:
Hi Lukas,
//*:fileDesc works, and gives the whole content of the file back.
Starting with the term fileDesc in 'brackets'.
When I use //*:sourceDesc or note I get a bit the same result.
But what if I want what is in the 'idno' ? <idno type="jlb">012</idno>
Or : <vg:placeLet>London</vg:placeLet>
How do I get these results?
Thanks in advance.
Regards,
Wiard
2011/5/20 Wiard Vasen
<wiard.vasen@gmail.com>
Hey Lucas,
thanks a lot for your help!
I have a look at your example.
Regards,
Wiard
2011/5/20 Lukas Kircher
<lukaskircher1@googlemail.com>
Hi Wiard,
being neither Christian nor Andreas, I nevertheless take a
shot :)
It's kinda hard to give a hint knowing that little about your
case, but I think you problem might be related to
namespaces.
As the root element 'TEI' declares a namespace, all descendants
lie in this namespace (unless they declare another one or are
linked to a prefix).
Short example - if you want to query a letDesc element you have
to specify the namespace it is linked to. Just declare the prefix
at the beginning of your query.
declare namespace ns = "http://www.vangoghletters.org/ns/";
//ns:letDesc
You can also use namespace wildcards to access nodes without
a specific prefix, for example the 'fileDesc' element:
//*:fileDesc
Hope this helps you a little - don't hesitate to ask for more.
I also included a link to a short discussion [1]. I'm afraid I can't
provide with a better tutorial about namespaces - it's a rare thing.
Regards,
Lukas
[1] http://www.stylusstudio.com/xquerytalk/200608/001654.html