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From "Geise, Brandon D." <bdge...@geisinger.edu>
Subject RE: Scaling cTakes
Date Fri, 05 Dec 2014 20:13:47 GMT
Thanks Jay, I'll have to take a look at this too. 

-----Original Message-----
From: jay vyas [mailto:jayunit100.apache@gmail.com] 
Sent: Friday, December 05, 2014 2:40 PM
To: dev@ctakes.apache.org
Subject: Re: Scaling cTakes

on a tangential note, we do have example of running ctakes in a massively parallel system
like spark/hadoop.


if you're problem is embarrasingly parallelizable, you can use mapreduce/spark to distribute
your app using that as a template (spark streaming can )

On Fri, Dec 5, 2014 at 1:29 PM, Geise, Brandon D. <bdgeise@geisinger.edu>

> Thanks Sean.  I'll take a look and see if this speeds the pipeline up.
> Thanks,
> Brandon
> -----Original Message-----
> From: Finan, Sean [mailto:Sean.Finan@childrens.harvard.edu]
> Sent: Friday, December 05, 2014 1:14 PM
> To: dev@ctakes.apache.org
> Subject: RE: Scaling cTakes
> Hi Brandon,
> It sounds like you've got  a decent pipeline set up.  To increase the 
> speed you could try swapping out use of ctakes-dictionary-lookup with 
> ctakes-dictionary-lookup-fast in the AE.  Check 
> ctakes-clinical-pipeline/desc/[ae]/AggregatePlaintextFastUMLSProcessor
> .xml for an example.  As for the CASPool, I don't think that it will 
> make any difference for cTakes.
> Sean
> ________________________________________
> From: Geise, Brandon D. [bdgeise@geisinger.edu]
> Sent: Friday, December 05, 2014 12:40 PM
> To: dev@ctakes.apache.org
> Subject: Scaling cTakes
> Hi,
> I'm new to cTakes and the UIMA framework.  I've read most of the UIMA 
> documentation and was able to take the BagofCUIGenerator example and 
> modify to read notes from a DB, process using the UMLS AE in the 
> clinical-pipeline using a local DB version of UMLS, and output the 
> CUIs to a DB.  However, the problem I'm having is it's extremely slow; 
> ~3.5-4 notes a minute.  I was hoping I could get some hints or advice 
> on speeding the process up.  I read there's a patch for LVG, but 
> wasn't quite sure how to implement.  Also from testing using the CPE 
> GUI, I don't notice any different in processing time by adjusting the 
> CASPool setting.  Some advice on the CASPool would be appreciated also.
> Thanks,
> Brandon
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jay vyas
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