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Posted to dev@ctakes.apache.org by Pei Chen <ch...@apache.org> on 2014/06/02 20:41:21 UTC

ClearTK 2.0 upgrade

Steve and Co.,
Do you know if the ClearTK 2.0 upgrade will require retraining of all of
the models?

--Pei

Re: ClearTK 2.0 upgrade

Posted by Jörn Kottmann <ko...@gmail.com>.

On 06/02/2014 11:31 PM, Steven Bethard wrote:
> Very likely, as the changes in package names mean that old classifiers
> will probably not deserialize. Yet another reason we probably
> shouldn't be using Java's object serialization, but I don't know of
> any alternative that actually solves the versioning problem...

You can define your own formats and include version strings, e.g. 
binary, xml, json, etc.

Jörn

Re: ClearTK 2.0 upgrade

Posted by Steven Bethard <st...@gmail.com>.

On Mon, Jun 2, 2014 at 2:41 PM, Pei Chen <ch...@apache.org> wrote:
> Steve and Co.,
> Do you know if the ClearTK 2.0 upgrade will require retraining of all of
> the models?

Very likely, as the changes in package names mean that old classifiers
will probably not deserialize. Yet another reason we probably
shouldn't be using Java's object serialization, but I don't know of
any alternative that actually solves the versioning problem...

Steve