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From: Stuti Awasthi <stutiawasthi@hcl.com>
To: "user@ctakes.apache.org" <user@ctakes.apache.org>
Subject: RE: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?
Thread-Topic: Meaning of "CONTAINS" TLink.. Is it equivalent to Overlap ?
Thread-Index: AdDaXIVzK6v17FHjRSCaSG6OV8sZsQBefolA
Date: Fri, 21 Aug 2015 06:02:45 +0000
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Thanks Tim, I understood the difference clearly would like to device an app=
roach 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 thou=
ghts.

Thanks &Regards
Stuti Awasthi

-----Original Message-----
From: Miller, Timothy [mailto:Timothy.Miller@childrens.harvard.edu]=20
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 i=
s fully contained inside an event or time expression:

|--------- a -----------|
      |-----b-------|

specifically BEGIN(a) <=3D BEGIN(b)  AND END(a) >=3D 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 usefu=
l 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 th=
e temporal relation, I would like to put them in sequence order to understa=
nd patients medical history.
>
> Now issue is for most of the relationship(Tlink) between Evenet-Event=20
> and Event-Time, I receive a category  "Contains". In most of the=20
> ctakes related papers, I read that TLInk belongs to "Before,=20
> Aftre,Overlap" so what does this "contains" means and how I can=20
> utilize this to build user's sequential timeline
>
> Eg:=20
> The MRI scan on admission revealed an impending cord compression at the l=
evel of T10.=20
>
> ################ EventEventRelation Annotation Output ###############
> EVENT(DocTime) | Relationship Category | Event(Doctime)=20
> scan ( BEFORE )  | CONTAINS 		  | revealed ( BEFORE )=20
> scan ( BEFORE )  | CONTAINS 		  | compression ( BEFORE )=20
>
> Please suggest.
>
> Thanks &Regards
> Stuti Awasthi
>
>
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