Hi Adam,
Thanks for the given example ! it's a month that i have started working with
UIMA API and i can't until now understand what the value added of UIMA ?
for example :
if I want to use external resource and check if an entity in the external
resource is matched in the given CAS document ? why sould I write a
tokenizer and other thing of java code to do so
Why UIMA doesn't offer this possibility directly whithout any other java
code ?
-Yassine
2007/3/22, Adam Lally <[EMAIL PROTECTED]>:
On 3/15/07, LASRI YASSINE <[EMAIL PROTECTED]> wrote:
> 2007/3/15, Michael Baessler <[EMAIL PROTECTED]>:
> >
> > LASRI YASSINE wrote:
> > > Exactly what I need, but rule can be either regular expression or
> > > aggregation of premitifs annotators ?
> > > Have any example ?
> > When I understand you correct, you want to have a rules that says:
> >
> > rule1: [person] /meets/ [person]
> >
> > where the rules consist of a person annotation followed by a regular
> > expression "meets" followed by another person annotation.
> > Is that what you mean by "either regular expression or aggregation of
> > premitifs annotators"?
>
>
> > Yes of course that's what I mean !
>
> Sorry I haven't got any example or implementation that do such kind of
> > processing. Maybe some other users on the users list can help you here
> > if they have some experience.
>
>
> > If any user have an example, please send it to me
>
I don't have a ready-to-run example, but to get yourself started I
would do something like this:
FSIndex personIndex = aJCas.getAnnotationIndex({Person.type);
//iterate over pairs of Person annotations
Iterator personIter = personIndex.iterator();
while (personIter.hasNext()) {
Person person1 = (Person)personIter.next();
if (!personIter.hasNext())
break;
Person person2 = (Person)personIter.next();
if (person1.getEnd() < person2.getBegin()) {
//check if the text between the annotations contains the word
"meets"
//(this could easily be a regular expression match instead, of
course)
String textBetween =
aJCas.getDocumentText().substring(person1.getEnd(),
person2.getBegin());
if (textBetween.indexOf("meets") > -1) {
//create annotation
MeetsRelationAnnotation newAnnot = new
MeetsRelationAnnotation(aJCas,
person1.getBegin(), person2.getEnd());
newAnnot.addToIndexes();
}
}
}
Note I just typed that right into this email, so there might be syntax
errors. But it should give you the idea.
Now if you want to turn this into a more general annotator that you
can configure with arbitrary rules that tell it what to match, then
that's a much more complex question. What we can help you with here
is how to use the UIMA APIs.
Regards,
-Adam
