Thank you Rupert and Anuj for your suggestions. I'm going through the links you have provided.
Rupert, What did you mean by base-line engine that is directly integrated in Stanbol with Regex based approach? Appreciate if you can further elaborate this. On Fri, Nov 29, 2013 at 11:35 AM, Rupert Westenthaler < rupert.westentha...@gmail.com> wrote: > Hi Anuj > > On Thu, Nov 28, 2013 at 1:51 PM, Anuj Kumar <anujs...@gmail.com> wrote: > > I second that. Regex will work better w.r.t. the default trained model of > > OpenNLP. > > Both such projects do look interesting: > > > Also, take a look at this extractor- > https://code.google.com/p/heideltime/ and > > As this is GPLv3 you can not directly use it to implement an > EnhancementEngine that is part of the Stanbol Codebase. Integrating it > via a RESTful service would be an option. > > > Stanford's tagger- http://nlp.stanford.edu/downloads/sutime.shtml#! > > The same is true for SuTime as all Stanford NLP components are under GPL. > > If we want to integrate those projects I suggest to extend the Stanbol > RESTful NLP protocol [1] and service [2] so that it can represent > date/time points and ranges. SuTime support could be added to the > already existing Stanbol-Stanford integration [3]. For HeidelTime one > would need to implement a similar component. > > > But before integrating those I would prefer to have a base-line engine > that is directly integrated in Stanbol. Looks like a Regex based > approach could be sufficient for that. WDYT Jayani? > > best > Rupert > > [1] https://issues.apache.org/jira/browse/STANBOL-878 > [2] https://issues.apache.org/jira/browse/STANBOL-892 > [3] https://github.com/westei/stanbol-stanfordnlp > > > > > It will be useful to have similar temporal expression enhancement engine > in > > Stanbol. > > > > Regards, > > Anuj > > > > > > On Thu, Nov 28, 2013 at 11:05 AM, Rupert Westenthaler < > > rupert.westentha...@gmail.com> wrote: > > > >> Hi Jayani, > >> > >> I was not even aware that there exists a Time model for OpenNLP. > >> Documentation shows that this uses a purely statistical model so I am > >> wondering about the quality. Note also that OpenNLP only provides a > >> prebuilt model for English [1]. > >> > >> AFAIK OpenNLP will only provide you with the information that some > >> tokens do represent a date. It will not provide you the parsed > >> xsd:dateTime. So if you use this Engine you will still need to > >> implement this part of your own. So most likely you will end up using > >> regex patterns to parse the actual time from the Tokens marked by > >> OpenNLP as time. > >> > >> So I am wondering if it is not better to start with Regex from the > >> beginning. If you search for "Regey Date Time extraction" you can > >> fined a huge set of example you could start from. > >> > >> best > >> Rupert > >> > >> > >> [1] http://opennlp.sourceforge.net/models-1.5/ > >> > >> > >> > >> On Thu, Nov 28, 2013 at 5:15 AM, Jayani Withanawasam > >> <jayaniwithanawa...@gmail.com> wrote: > >> > Hi Dileepa, > >> > > >> > Thank you so much for your valuble feedback. I'm working on this. > >> > > >> > > >> > On Mon, Nov 25, 2013 at 9:00 PM, Dileepa Jayakody < > >> dileepajayak...@gmail.com > >> >> wrote: > >> > > >> >> Hi Jayani, > >> >> > >> >> There are several enhancement engines in Stanbol developed based on > >> >> OpenNLP. (opennlp-ner, opennlp-sentence, opennlp-pos...See [1]) > Each of > >> >> these engines focus on a particular enhancement aspect using OpenNLP. > >> >> Therefore I think it's better to write a new engine for temporal > >> >> extractions rather than extending the OpenNLP-NER engine. > >> >> > >> >> Thanks, > >> >> Dileepa > >> >> > >> >> [1] > >> >> > >> > https://svn.apache.org/repos/asf/stanbol/trunk/enhancement-engines/opennlp > >> >> > >> >> > >> >> On Mon, Nov 25, 2013 at 4:30 PM, Jayani Withanawasam < > >> >> jayaniwithanawa...@gmail.com> wrote: > >> >> > >> >> > Hi, > >> >> > > >> >> > I'm researching on adding new enhancement engine for extracting > date > >> and > >> >> > time (Temporal extraction) to Stanbol as suggested by Rupert. > >> >> > > >> >> > There, it is being found that OpenNLP has an entity extraction unit > >> for > >> >> > date and time. > >> >> > Also, I noticed that OpenNLP is already integrated to Stanbol in > NER > >> >> > engine. > >> >> > > >> >> > So, as per my understanding, there are two options to extract date > and > >> >> > time. > >> >> > > >> >> > One is to have a seperate enhancement engine for date and time > >> >> information > >> >> > extraction. Another one is to add date time extraction as a code > >> >> > enhancement to exisitng OpenNLP NER engine. > >> >> > > >> >> > What is your opinion on this? Is there any other approach which you > >> think > >> >> > that would be better? > >> >> > > >> >> > Thank you > >> >> > Jayani > >> >> > > >> >> > >> > >> > >> > >> -- > >> | Rupert Westenthaler rupert.westentha...@gmail.com > >> | Bodenlehenstraße 11 ++43-699-11108907 > >> | A-5500 Bischofshofen > >> > > > > -- > | Rupert Westenthaler rupert.westentha...@gmail.com > | Bodenlehenstraße 11 ++43-699-11108907 > | A-5500 Bischofshofen >
