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From: "Armando Stellato" <stellato@info.uniroma2.it>
To: <uima-user@incubator.apache.org>
References: <03ea01c97807$09182010$1b486030$@uniroma2.it>
 <000a01c97825$b258b1d0$6401a8c0@watson.ibm.com>
In-Reply-To: <000a01c97825$b258b1d0$6401a8c0@watson.ibm.com>
Subject: R: annotator based on regular expressions over (previous)
 annotations: state-of-work in UIMA?
Date: Sat, 17 Jan 2009 01:16:33 +0100
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Hi Igor,

thanks for the pointer. I've done a brief run under your LREC paper:

http://domino.research.ibm.com/comm/research_projects.nsf/pages/medicalin=
formatics.pubs.html/$FILE/CFE_sominsky-A4.pdf

and a presentation I found on the Web:

http://watchtower.coling.uni-jena.de/~coling/uimaws_lrec2008/slides/somin=
sky_20080531_talk_CFE.pdf

At a first glance, it seemed something quite different from what I =
needed. FESL is a (I hope not to abuse the term :-) ) trasformator from =
UIMA features. The target may be new UIMA features or other kind of data =
(as for the title of the paper and the example of figure 3, which =
suggests its use in Machine Learning, by extracting useful info from the =
existing annotations, which can feed a learner). However, I tried to =
understand it better, because it could anyway have the power to do what =
I was looking for, which is to apply regular expressions over the =
content of a document, with elements of the expressions being not only =
represented by strings, digits etc.. but also by Annotation types. Like =
(with a very simple syntax) telling that:
.* {<PersonTitle> <Name>}
will extract a new Annotation called Person when matching the =
(previously annotated with PersonTitle and Name annotations) string: "Mr =
John Doe"
Lastly, I think I found the problem: in the paper you mention Reg Exps =
as one of the 5 filters which can be applied to evaluate values (upper =
right part of page 3 of the paper), but the overall search mechanism =
(points from a) to f) upper LEFT part of page 3) is not based on regular =
expressions nor, I think, has their power (though I will delve into the =
details of point f) with further reading).

On the basis of what I got from the reading, I think it is not what I =
need, though it could surely be included as part of it. For example =
(again simple syntax):

.* {<Person>} "salary" <Currency>:normalizedvalue > 300000=E2=82=AC

To extract instances of RichPerson

If I missed some crucial aspect, please let me know,

Thanks in advance,

Armando Stellato


> -----Messaggio originale-----
> Da: Igor Sominsky [mailto:sominsky@gmail.com]
> Inviato: venerd=C3=AC 16 gennaio 2009 22.59
> A: uima-user@incubator.apache.org
> Oggetto: Re: annotator based on regular expressions over (previous)
> annotations: state-of-work in UIMA?
>=20
> Armando,
>=20
> In posted version of CFE you can alter the value of an extracted =
feature by
> applying a Java regular expression. The code that is currently under
> development would allow to combine several values by using Java =
regular
> expressions or math expressions. The grammar of math expressions =
include
> capability for using java functions and constants (through reflection)
>=20
> I hope that answers your question. Please let me know if you need more
> information
>=20
> Thank
> Igor
>=20
>=20
> ----- Original Message -----
> From: "Armando Stellato" <stellato@info.uniroma2.it>
> To: "UIMA" <uima-user@incubator.apache.org>
> Sent: Friday, January 16, 2009 1:19 PM
> Subject: annotator based on regular expressions over (previous) =
annotations:
> state-of-work in UIMA?
>=20
>=20
> > Hi all,
> >
> >
> >
> > From a few posts, like the one at the following link:
> >
> >
> >
> > http://osdir.com/ml/apache.uima.general/2008-05/msg00070.html
> >
> >
> >
> > it seems that there is some interest in seeing such kind of =
processor in
> > the
> > UIMA array of available components.
> >
> >
> >
> > Since we're considering working on developing a new one, but would =
prefer
> > not to reinvent the wheel J, I'm asking if there is already someone =
doing
> > the same and, in case, get pointers to their work, know if it is
> > available,
> > if it's still in work-in-progress etc.
> >
> >
> >
> > Best regards,
> >
> >
> >
> > Armando Stellato
> >
> >
> >
> > --------------------------------------------------
> >
> >
> >
> > Ing. Armando Stellato, PhD
> >
> > AI Research Group,
> >
> > Dept. of Computer Science, Systems and Production
> >
> > University of Roma, Tor Vergata
> >
> > Via del Politecnico 1 00133 ROMA (ITALY)
> >
> > tel: +39 06 7259 7330 (office, room A1-14);
> >
> >     +39 06 7259 7332 (lab)
> >
> > fax: +39 06 7259 7460
> >
> > e_mail: stellato@info.uniroma2.it
> >
> > yahoo: stellato75
> >
> > jabber(gtalk): stellato75@gmail.com <mailto:starred75@gmail.com>
> >
> > skype: odnamar
> >
> >
> >
> > --------------------------------------------------
> >
> >
> >
> >