Vincent, Would you mind explaining in a bit more detail why you want to do this? I'm curious about ways in which people are training their own classifiers. What data set are you working with?
Thanks! jds On Tue, Jan 10, 2017 at 7:55 AM, Vincent <vincent.s...@openindex.io> wrote: > Hey William, > > Excellent, that solves it! Nice example. Thanks a lot! > > Cheers, > > Vincent > > > On 09-01-17 17:51, William Colen wrote: > >> That is the idea of the POS Tagger Factory. You can change the context >> generator using the factory. >> >> Take a look at this JUnit. Method testPOSTaggerWithCustomFactory >> >> https://github.com/apache/opennlp/blob/master/opennlp-tools/ >> src/test/java/opennlp/tools/postag/POSTaggerFactoryTest.java >> >> Give it a try and come back if you need help. >> >> William >> >> 2017-01-09 9:28 GMT-02:00 Vincent <vincent.s...@openindex.io>: >> >> Hi William, >>> >>> Thanks for the reply. I think I haven't been exactly clear in phrasing my >>> question. >>> >>> I'm using OpenNLP as a Maven depencency for my own project, which is more >>> like shell around OpenNLP, only calling the functions I need to >>> train/apply >>> the POSTagger. I don't have the OpenNLP code in my project, I just wanted >>> to inherit from the code to customize/override the feature selection. But >>> this is problematic because for example, POSModel is a final class and >>> can't be extended. >>> >>> I hope that this makes sense. >>> >>> Cheers, >>> >>> Vincent >>> >>> >>> On 05-01-17 17:46, William Colen wrote: >>> >>> Hi Vincent, >>>> >>>> OpenNLP will take care of serializing the information necessary to call >>>> your custom factory instead of the default one. >>>> Just to make sure of that, change your custom POSContextGenerator by >>>> adding >>>> a small log message. You should see the message both during training and >>>> runtime. >>>> >>>> To train, use the methods that you can pass in your custom factory. >>>> >>>> -- William >>>> >>>> 2017-01-05 13:53 GMT-02:00 Vincent <vincent.s...@openindex.io>: >>>> >>>> Hi all, >>>> >>>>> I would like to be able to have a bit more influence on the features >>>>> used >>>>> for POS-tagging. I suppose that feature selection happens in the >>>>> POSContextGenerator. However, I can't seem to be able to change the >>>>> type >>>>> of >>>>> POSContextGenerator that is being called from POSTaggerFactory: the >>>>> getPOSContextGenerator() function always returns the >>>>> DefaultPOSContextGenerator. >>>>> >>>>> Looking for a way to make a custom POSContextGenerator work, I made a >>>>> custom POSTaggerFactory too, that inherits from the regular >>>>> POSTaggerFactory, but returns my own POSContextGenerator. However, for >>>>> example, a class like POSModel (in turn used by POSTaggerME) is final, >>>>> and >>>>> can't be inherited from to use my custom POSTaggerFactory. >>>>> >>>>> It seems I just need to copy the entire code into my own project, or is >>>>> there a better way to make this work? >>>>> >>>>> Thanks in advance! >>>>> >>>>> Cheers, >>>>> >>>>> Vincent >>>>> >>>>> >>>>> >>>>> >
