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From: Roberto Franchini <franchini@celi.it>
Date: Mon, 19 Nov 2012 12:25:02 +0100
Message-ID: 
 <CAMpo0wgxcpQTqCX71EDEsSJW=Ubar50L8Ys+kDivEa7xxcCy1A@mail.gmail.com>
Subject: Re: drools for annotation sequences
To: user@uima.apache.org, Yasen Kiprov <yasenkiprov@yahoo.com>
Content-Type: text/plain; charset=ISO-8859-1

On Mon, Nov 19, 2012 at 10:06 AM, Yasen Kiprov <yasenkiprov@yahoo.com> wrote:
> Hello,
>
[cut]

>
> when
> Token with text == Mr. and number i
> Token with capital letter and number i + 1
> ...
>
> But it doesn't look right.
>
> Does anyone have any idea how such patterns can be modeled with Drools?

We use the same way.
So every annotation emitted before Drools grammars and from grammars
too has 2 additional features posBegin and posEnd, where pos stands
for "position".
So a single token has posBegin equals to posEnd, while a sentence has
posEnd greater than posBegin.

So, in the "when" part of rules, you can match sequence of tokens (pseudo code):

Token $t1 whit text == Mr. and $posBegin=posBegin
Token $t2 with ortho=capitalized and posBegin== $posBegin+1

And in the "then" emit new annotations
then
emit NE($1.sgetStart,$t2.getEnd)

And , yes, we adapted our type system to be used this way.
The better this is to write a little Drools DSL that encapsulate
"when" and "then" frequently used patterns.

Hope this help,
cheers,
FRANK


--
Roberto Franchini
The impossible is inevitable.
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