Hi Sean,

thank you (again) for your help and feedback! I'll give it a try! Seems like 
the authors of the publication "Mayo clinical Text analysis and Knowledge 
Extraction System" (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995668/ 
<https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995668/>) did this as well.

Thank you
Leander



> On 17 Mar 2017, at 18:33, Finan, Sean <sean.fi...@childrens.harvard.edu> 
> wrote:
> 
> Hi Leander,
> 
> There is no single correct way to do this, but a couple of similar classes 
> exist.  Well, one sat in my sandbox for two years until about 5 seconds ago 
> as I only just checked it in.  Anyway, take a look at two classes in 
> ctakes-core org.apache.ctakes.core
> They are TextSpanWriter and CuiCountFileWriter.
> 
> TextSpanWriter writes annotation name | span | covered text in a file, one 
> per document.
> 
> CuiCountFileWriter writes a list of discovered cuis and their counts.
> 
> It sounds like you are interested in a combination of both - basically 
> TextSpanWriter with the added output of CUIs.
> 
> You can also have a look at EntityCollector of 
> org.apache.ctakes.core.pipeline.  It has an annotation engine that keeps a 
> running list of "entities" for the whole run, doc ids, spans, text and cuis.
> 
> Sean
> 
> 
> -----Original Message-----
> From: Leander Melms [mailto:me...@students.uni-marburg.de] 
> Sent: Friday, March 17, 2017 1:09 PM
> To: dev@ctakes.apache.org
> Subject: Re: Evaluate cTAKES perfomance
> 
> Sorry for writing again. I just have a quick question: My idea is to parse 
> the cTAKES output to a text file with a structure like this 
> DocName|Spans|CUI|CoveredText|ConceptType and do the same with the cold 
> standart (from anafora). 
> 
> Is this a correct way to do this? 
> 
> I'm new to the subject and happy about the tiniest information on the topic.
> 
> Thanks
> Leander
> 
> I
>> On 17 Mar 2017, at 12:05, Leander Melms <me...@students.uni-marburg.de> 
>> wrote:
>> 
>> Hi,
>> 
>> I've integrated a custom dictionary, retrained some of the OpenNLP models 
>> and would like to evaluate the changes on a gold standard. I'd like to 
>> calculate the precision, the recall and the f1-score to compare the results.
>> 
>> My question is: Does cTAKES ship with some evaluation / test scripts? What 
>> is the best strategry to do this? Has anyone dealt with this topic before? 
>> 
>> I'm happy to share the results afterwards if there is interest for it.
>> 
>> Thanks
>> Leander
>> 
> 
> 

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