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From "John Green" <hephaestus.stu...@gmail.com>
Subject RE: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?
Date Mon, 31 Aug 2015 14:01:31 GMT
I look forward to reading that paper! 


On Fri, Aug 21, 2015 at 6:27 AM, Savova, Guergana
<Guergana.Savova@childrens.harvard.edu> wrote:

> Hi Stuti,
> There is code in cTAKES (TimeLanes) that takes all pairwise temporal relations (e.g.
CONTAINS, BEFORE, etc.) and the relation of the event to the document creation time (docTimeRel)
discovered by the cTAKES temporal modules and derives a timeline. The code to TimeLanes is
in the apache ctakes sandbox as "timelineViz" or something like that.  It is an older copy
and it will be updated soon - there are common libraries in TimeLanes and some other software,
and testing all end uses takes some effort. The code is not perfect but it is a start.
> A paper describing the cTAKES temporal relation module will be published here within
couple of weeks:
> http://jamia.oxfordjournals.org/content/early/recent/
> You are welcome to use the TimeLanes code for your use case, improve on it and contribute
back the improvements! Extracting temporality from text and creating timelines of events is
a very challenging task.
> --Guergana
> -----Original Message-----
> From: Stuti Awasthi [mailto:stutiawasthi@hcl.com] 
> Sent: Friday, August 21, 2015 2:03 AM
> To: user@ctakes.apache.org
> Subject: RE: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?
> Thanks Tim, I understood the difference clearly would like to device an approach to utilize
these concepts to prepare sequential event based timeline for the patients.
> It would be helpful if you can point some useful links or suggest your thoughts.
> Thanks &Regards
> Stuti Awasthi
> -----Original Message-----
> From: Miller, Timothy [mailto:Timothy.Miller@childrens.harvard.edu]
> Sent: Wednesday, August 19, 2015 6:30 PM
> To: user@ctakes.apache.org
> Subject: Re: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?
> Sounds like an awesome application!
> CONTAINS is similar to OVERLAP but more specific. It means that one event is fully contained
inside an event or time expression:
> |--------- a -----------|
>       |-----b-------|
> specifically BEGIN(a) <= BEGIN(b)  AND END(a) >= END(b)
> whereas OVERLAP is a broader category that just means there is some overlap:
> |--------a----------|
>     |-----------b-------|
> is an example of an OVERLAP relation that is not contains.
> Technically CONTAINS is a subset of OVERLAP, but it is one that is so useful and common
that we keep it as its own category.
> Tim
> On 08/19/2015 04:53 AM, Stuti Awasthi wrote:
>> Hi All,
>> I am a newbee in ctakes so please pardon my ignorance.
>> I am trying to extract temporal relation between Events-Events and Events-Time. For
this I am using cTakes Temporal module via api's.  Once I get the temporal relation, I would
like to put them in sequence order to understand patients medical history.
>> Now issue is for most of the relationship(Tlink) between Evenet-Event 
>> and Event-Time, I receive a category  "Contains". In most of the 
>> ctakes related papers, I read that TLInk belongs to "Before, 
>> Aftre,Overlap" so what does this "contains" means and how I can 
>> utilize this to build user's sequential timeline
>> Eg: 
>> The MRI scan on admission revealed an impending cord compression at the level of
>> ################ EventEventRelation Annotation Output ###############
>> EVENT(DocTime) | Relationship Category | Event(Doctime) 
>> scan ( BEFORE )  | CONTAINS 		  | revealed ( BEFORE ) 
>> scan ( BEFORE )  | CONTAINS 		  | compression ( BEFORE ) 
>> Please suggest.
>> Thanks &Regards
>> Stuti Awasthi
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