Hi,
Am 21.08.2019 um 15:47 schrieb Dominik Terweh:
> Hi Peter,
>
> Thanks a lot for the clarification. I was wondering about (10) too.
>
> Following your explanation I was wondering, Does it make sense to anchor
> sequences, such as in (8) and is it "legal" to use multiple anchors in
> hierarchical fashion?
> Like A @(B @C D)?
Yes, it is "legal", but you have to be careful. (There are not enough
unit tests for those rules)
>
> Also, is there a difference between the processing of sequences of
> annotations or literals (given "A" is annotated as A and so on)?
> A @(B C D)
> Vs
> "A" @("B" "C" "D")
> Vs
> A @("B" C "D")
It should not make a difference for the result, but the matching using
literal string epxression is still really inefficient.
Best,
Peter
>
> Best
> Dominik
>
>
>
> Dominik Terweh
> Praktikant
>
> DROOMS
>
>
> Drooms GmbH
> Eschersheimer Landstraße 6
> 60322 Frankfurt, Germany
> www.drooms.com
>
> Phone:
> Fax:
> Mail: d.ter...@drooms.com
>
>
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> On 21.08.19, 12:10, "Peter Klügl" <peter.klu...@averbis.com> wrote:
>
> Hi,
>
> Am 20.08.2019 um 16:09 schrieb Dominik Terweh:
> >
> > Dear All,
> >
> >
> >
> > I have some questions regarding processing times and anchors ("@").
> >
> >
> >
> > First of all, is it possible to define an anchor on a disjunction?
> >
> > What I tested was to have a simple rule (1) that should start on the
> > Element in the middle (2). Now this element had a variation (3) but I
> > could not use the anchor in that case anymore:
> >
> > 1) A B C; // works
> >
> > 2) A @B C; // works
> >
> > 3) A @(B|D) C; // NOT WORKING
> >
> > Is this behaviour intended or simply not supported?
> >
> > [NOTE: NOT WORKING means eclipse does not complain, but the rule never
> > matches]
> >
> >
> >
> > The above led to some testing with a different setup(4), however,
> > since disjunctions don't seem to work, this was also not valid.
> >
> > 4) A @((B C) | (D C)); // NOT WORKING
> >
>
> Anchors at disjunct rule elements are syntactically supported but do not
> work correctly. I will open a bug ticket.
>
>
> >
> >
> > Is there a scenario where anchors are valid in and before brackets?
> > From my observation I've seen that (5)-(10) are all working as
> > expected and all start matching on B. But, do they differ in terms of
> > processing? I noticed slightly longer processing times in (5) and ever
> > so slightly in (6), but not very indicative. Could (5)-(10) differ in
> > processing time?
> >
> > 5) A @B C
> >
> > 6) (A @B C)
> >
> > 7) @(A @B C)
> >
> > 8) A @(B C)
> >
> > 9) A @(@B C)
> >
> > 10) A (@B C)
> >
>
> Yes since different combinations of methods are called, but I think
> there should not be a big difference between (5)-(9).
>
>
> >
> >
> > Since rule (10) works as expected, why does (11) work differently and
> > start on A but not on B and D? (This would be useful in a scenario
> > where B and D combined appear less often than A)
> >
> > 11) A ((@B C) | (@D C)); // starts matching on A
> >
> >
> >
> >
> >
>
> I have to check that. I think (10) start with A too.
>
>
>
> Two comments for anchors and disjunct rule elements:
>
> Anchors started as a manual option to optimize the rule execution time
> compared tot he automatic dynamic anchoring. However, the anchor can
> considerably change the consequences of a rule. For me, the anchor is
> more of an engineering option which also can be used to speed up the
> rules.
>
>
> Disjunct rule elements are not well supported and maintained in Ruta.
> Their implementation is not efficient and they can lead to unintened
> matches. Thus, their usage is not allowed in my team and I would not
> recommend using them right now.
>
>
> (I will try to find the time to improve the implementation)
>
>
> Best,
>
>
> Peter
>
>
> > Thank you in advance for your answers,
> >
> > Best
> >
> > Dominik
> >
> > Dominik Terweh
> > Praktikant
> >
> > *Drooms GmbH*
> > Eschersheimer Landstraße 6
> > 60322 Frankfurt, Germany
> > www.drooms.com <http://www.drooms.com>
> >
> > Phone:
> > Mail: d.ter...@drooms.com <mailto:d.ter...@drooms.com>
> >
> >
> <https://drooms.com/en/newsletter?utm_source=newslettersignup&utm_medium=emailsignature>
> >
> > *Drooms GmbH*; Sitz der Gesellschaft / Registered Office:
> > Eschersheimer Landstr. 6, D-60322 Frankfurt am Main; Geschäftsführung
> > / Management Board: Alexandre Grellier;
> > Registergericht / Court of Registration: Amtsgericht Frankfurt am
> > Main, HRB 76454; Finanzamt / Tax Office: Finanzamt Frankfurt am Main,
> > USt-IdNr.: DE 224007190
> >
> --
> Dr. Peter Klügl
> R&D Text Mining/Machine Learning
>
> Averbis GmbH
> Salzstr. 15
> 79098 Freiburg
> Germany
>
> Fon: +49 761 708 394 0
> Fax: +49 761 708 394 10
> Email: peter.klu...@averbis.com
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>
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>
>
--
Dr. Peter Klügl
R&D Text Mining/Machine Learning
Averbis GmbH
Salzstr. 15
79098 Freiburg
Germany
Fon: +49 761 708 394 0
Fax: +49 761 708 394 10
Email: peter.klu...@averbis.com
Web: https://averbis.com
Headquarters: Freiburg im Breisgau
Register Court: Amtsgericht Freiburg im Breisgau, HRB 701080
Managing Directors: Dr. med. Philipp Daumke, Dr. Kornél Markó
