thanks for replying What I need to do is to make a new model that can extracts the names of recipes in specific website for cooking could you please correct me if I made any wrong : - first, I made a training file (training.txt) in this file I chose a lot of sentences that contain recipe name. I put each sentence in one line for example <START>Shortbread <END> is an easy buttery biscuits as homemade Christmas presents . ... etc - then I use the command line training tool to generate the new model - After that I will use this model in my application to deal with any new page from this cooking website. - the features will be extracted automatically by Opennlp so I do not need to specify that just I nedd to provide as many training data as I can (this is what I understood) Are all my steps right? Do I need to do anything to make the results more accurate? I appreciate your help Best, Amal
> From: olivier.gri...@ensta.org > Date: Mon, 20 Jun 2011 10:06:23 +0200 > Subject: Re: OpenNLP tool for NameFinder > To: opennlp-users@incubator.apache.org > > 2011/6/20 Amal Elmah <amalalthougha...@hotmail.com>: > > > > Hi OpenNLP team, > > > > I used the command line training tool for NameFinder .So, I used the > > following command: > > $bin/opennlp TokenNameFinderTrainer -encoding UTF-8 -lang en -data > > en-ner-person.train -model en-ner-person.bin > > > > I do not know from where can I get the en-ner-person.train . So, I made a > > trining file (training.txt) and add training data as follows: > > > > <START:person> Pierre Vinken <END> , 61 years old , will join the board as > > a nonexecutive director Nov. 29 . > > Mr . <START:person> Vinken <END> is chairman of Elsevier N.V. , the Dutch > > publishing group . > > > > My Questions are: > > 1- How can I add features if I want to use the command line training tool > > not API? Can you please give me an example if this is possible! > > AFAIK in the current state feature extraction is only customizable > through the API. > > > 2- Can we add features to the training data I mean with the annotation > > <START: person feature=value> > > No. What would be the use case? Can you give a concrete example of > such a manual feature annotation? What goal do you want to achieve > with such annotations? > > > 3- Does Opennlp tool have a way to generate these features automatically > > from the training data? > > OpenNLP already generates its feature automatically by combining > several feature extractors as in: > > https://svn.apache.org/repos/asf/incubator/opennlp/trunk/opennlp-tools/src/main/java/opennlp/tools/namefind/DefaultNameContextGenerator.java > > All those feature extractors do not expect any kind of many > annotations. This is expected since in general the text you want to > analyze with a NameFinde instance will not have any kind of > annotations. > > -- > Olivier > http://twitter.com/ogrisel - http://github.com/ogrisel
