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
