Mailing-List: contact ctakes-dev-help@incubator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: ctakes-dev@incubator.apache.org
Received-SPF: neutral (athena.apache.org: local policy)
From: Richard Eckart de Castilho <eckart@ukp.informatik.tu-darmstadt.de>
To: "<ctakes-dev@incubator.apache.org>" <ctakes-dev@incubator.apache.org>
Subject: Re: uima parameters vs. resources (ctakes-dependency-parser)
Thread-Topic: uima parameters vs. resources (ctakes-dependency-parser)
Thread-Index: AQHOGNO15w5C88hK00qViOOkZ2DwCpiW+NOAgAAGDwA=
Date: Tue, 5 Mar 2013 12:55:03 +0000
Message-ID: 
 <2FF3DDCD-56F0-4E84-ADEE-3C7F6B4A2F0E@ukp.informatik.tu-darmstadt.de>
References: <E084D8EFE2B03A408B324458C5212E94210EA5DA@CHEXMBX3A.CHBOSTON.ORG>
 <EF93289B-634A-4C46-BCC6-D5F0BBF3BC0C@colorado.edu>
In-Reply-To: <EF93289B-634A-4C46-BCC6-D5F0BBF3BC0C@colorado.edu>
Accept-Language: de-DE, en-US
Content-Language: de-DE
Content-Type: text/plain; charset="iso-8859-1"
Content-ID: <86613F36B114E14CB30BFC0BE6366D78@ukp.informatik.tu-darmstadt.de>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

Am 05.03.2013 um 13:33 schrieb Steven Bethard <steven.bethard@Colorado.EDU>=
:

> On Mar 4, 2013, at 1:28 PM, "Miller, Timothy" <Timothy.Miller@childrens.h=
arvard.edu> wrote:
>> The question of when to use uima descriptor parameters vs resources has =
come up offline recently.  My understanding is that resources are valuable =
for things like large model files, where it can be loaded once by UIMA and =
then shared between pipelines. I happened to notice that in the dependency =
parser, which has an uncommonly large model file, the model filename is a p=
arameter, and from what I can tell the model will be loaded separately for =
each pipeline.  Is this something that should be fixed or is there some rea=
soning against using the resource mechanism in this instance or in general?
>=20
> It's definitely something that should be fixed.


Typically, even with resources, the model is loaded separately for each pip=
eline. That is because UIMA does not support sharing pre-created objects. T=
he model is shared only when multiple AEs or multiple instances of the same=
 AE in a single pipeline (AAE) use the model - e.g. when using running a CP=
E. Then, UIMA will instantiate the model (as opposed to using a pre-existin=
g instance) and pass it to the different AE instances.

Cheers,

-- Richard

--=20
-------------------------------------------------------------------=20
Richard Eckart de Castilho
Technical Lead
Ubiquitous Knowledge Processing Lab (UKP-TUD)=20
FB 20 Computer Science Department     =20
Technische Universit=E4t Darmstadt=20
Hochschulstr. 10, D-64289 Darmstadt, Germany=20
phone [+49] (0)6151 16-7477, fax -5455, room S2/02/B117
eckart@ukp.informatik.tu-darmstadt.de=20
www.ukp.tu-darmstadt.de=20
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------