Hi Upayavira, Thank you for your kind assistance Sir. If that is the requirement for stemming then I will do it.
My next question is how can I build a stopword list for Bengali language? The option that I've thought about are 1. Calculate idf values for all the stemmed words inside 20GB crawled data. 2. Find the words that have high inverse document frequency and mark them as stopwords. If you have any better solution then please help! Thank you Sir, Imtiaz Shakil Siddique On 10 September 2015 at 17:38, Upayavira <u...@odoko.co.uk> wrote: > I haven't heard of any machine learning based stemmers. I'm not really > sure what algorithm you would use to do stemming - what you'd be looking > for is something that says, well, running stemmed to run, walking > stemmed to walk, therefore hopping should stem to hop, but that'd be > quite an algorithm to develop, I'd say. > > There are a few ways you could handle this: > > 1) locate a Bengali linguist who can help you define an algorithm > 2) manually stem a large number of documents and use that as a basis > for stemming > > If you had a stemmed corpus, you could simply use synonyms to do it, in > English, you could map: > > run,running,runs,ran,runner=>run > walk,walked,walking,walker=>walk > > Then all you need to do is generate a synonym file and use the > SynonymFilterFactory with it, in place of a stemmer. > > Would that work? > > Upayavira > > On Thu, Sep 10, 2015, at 09:59 AM, Imtiaz Shakil Siddique wrote: > > Thanks for the reply. > > > > Currently I have 20GB Bengali newspaper data ( for corpus building ) > > I don't have manual stemmed corpus but if needed I will build one. > > > > Basically I need guidance regarding how to do this. > > If there are some standard approaches of building stemmer and stopword > > for > > use with solr then please > > share it . > > > > Thank you Upayavira for your kind help. > > > > Imtiaz Shakil Siddique > > > > > > On 10 September 2015 at 13:23, Upayavira <u...@odoko.co.uk> wrote: > > > > > > > > > > > On Thu, Sep 10, 2015, at 04:45 AM, Imtiaz Shakil Siddique wrote: > > > > Hi, > > > > > > > > I am trying to develop stemmer and stopword for Bengaly language > which is > > > > not shipped with solr. > > > > > > > > I am trying to make this with machine learning approach but I > couldn't > > > > find > > > > any good documents to study. It would be very helpful if you could > shed > > > > some lights into this matter. > > > > > > How are you going to do this with machine learning? What corpus are you > > > going to use to learn from? Do you have some documents that have been > > > manually stemmed for which you also have the originals? > > > > > > Upayavira > > > >
