Hi!
On Wed, Apr 16, 2014 at 03:26:54PM +0900, Hugo Mougard wrote:
> I'm trying to use a multiplier to discard some CASes based on some
> annotation. It currently doesn't work (the CASes are not discarded). I
> also noticed several tickets opened on the suject of multipliers and
> am therefore not sure if it's currently possible to use them in
> UIMAfit.
Perhaps a better solution exists meanwhile, but some time ago,
Philipp W suggested on this mailing list a SimplePipeline replacement
that can deal with CAS multipliers:
https://groups.google.com/forum/#!topic/uimafit-users/yA0w2Q8tGNE
I had to wrap it up in an actual class and fix it for Aggregate Engines,
my version is at:
https://github.com/brmson/yodaqa/blob/master/src/main/java/cz/brmlab/yodaqa/flow/MultiCASPipeline.java
You just use it in the same way as you'd use SimplePipeline then, e.g.:
https://github.com/brmson/yodaqa/blob/9e12a80c/src/main/java/cz/brmlab/yodaqa/YodaQAApp.java
P.S.: I think ideally, to enable better scale-out and for consistency
if you are using other Aggregate Engines anyway, you would probably
create a single aggregate engine for your pipeline with the proper flow
controller setup within, setting FlowController's ActionForIntermediateSegments
to "drop". In XML CPE descriptor you'd do that like this:
https://github.com/brmson/yodaqa/blob/bad64d5c/src/main/resources/cz/brmlab/yodaqa/pipeline/YodaQA.xml
If you come up with a way to do that in UIMAfit, I will be glad if you'd
share a working code snippet.
Petr "Pasky" Baudis
