Russian stemmer

Hello, I'm using SnowballPorterFilterFactory with language=Russian. The stemming works ok except people names, geographical places. Here are some examples: searching for Ковров should also find Коврова, Коврову, Ковровом, Коврове. Are there other stemming plugins for the russian language that

Re: Russian stemmer

All of your examples stem to ковров: assertAnalyzesTo(a, Коврова Коврову Ковровом Коврове, new String[] { ковров, ковров, ковров, ковров }); } Are you sure you enabled this at *both* index and query time? 2010/7/27 Oleg Burlaca o...@burlaca.com Hello, I'm using

Re: Russian stemmer

another look, your problem is ковров itself... its mapped to ковр a workaround might be to use the protected words functionality to keep ковров and any other problematic people/geo names as-is. separately, in trunk there is an alternative russian stemmer (RussianLightStemFilterFactory), which

Re: Russian stemmer

there is an alternative russian stemmer (RussianLightStemFilterFactory), which might give you less problems on average, but I noticed it has this same problem with the example you gave. On Tue, Jul 27, 2010 at 4:25 AM, Robert Muir rcm...@gmail.com wrote: All of your examples stem to ковров

Re: Russian stemmer

A similar word is Немцов. The strange thing is that searching for Немцова will not find documents containing Немцов Немцова: 14 articles http://www.sova-center.ru/search/?lg=1q=%D0%BD%D0%B5%D0%BC%D1%86%D0%BE%D0%B2%D0%B0 Немцов: 74 articles

Re: Russian stemmer

Actually the situation with Немцов из ок, I've just checked how Yandex works with Немцов and Немцова: http://nano.yandex.ru/project/inflect/ I think there are two solutions: a) manually search for both Немцов and then Немцова b) use wildcard query: Немцов* Robert, thanks for the

Re: Russian stemmer

2010/7/27 Oleg Burlaca o...@burlaca.com Actually the situation with Немцов из ок, I've just checked how Yandex works with Немцов and Немцова: http://nano.yandex.ru/project/inflect/ I think there are two solutions: a) manually search for both Немцов and then Немцова b) use wildcard query:

Re: Russian stemmer

Thanks Robert for all your help, The idea of ы[A-Z].* stopwords is ideal for the english language, although in russian nouns are inflected: Борис, Борису, Бориса, Борисом I'll try the RussianLightStemFilterFactory (the article in the PDF mentioned it's more accurate). Once again thanks, Oleg

Re: Russian stemmer

right, but your problem is this is the current output: Ковров - Ковр Коврову - Ковров Ковровом - Ковров Коврове - Ковров so, if Ковров was simply left alone, all your forms would match... 2010/7/27 Oleg Burlaca o...@burlaca.com Thanks Robert for all your help, The idea of ы[A-Z].* stopwords

Re: Russian stemmer

: Russian stemmer To: solr-user@lucene.apache.org Date: Tuesday, July 27, 2010, 7:12 AM right, but your problem is this is the current output: Ковров - Ковр Коврову - Ковров Ковровом - Ковров Коврове - Ковров so, if Ковров was simply left alone, all your forms would match... 2010/7/27

Re: Problem with Russian stemmer in Solr 1.2

removing HTML code... So I created my factories. Regards, Daniel -- View this message in context: http://www.nabble.com/Problem-with-Russian-stemmer-in-Solr-1.2-tf4049948.html#a11646823 Sent from the Solr - User mailing list archive at Nabble.com.

Re: Problem with Russian stemmer in Solr 1.2

Hi Andrew. This is an example for one FilterFactory: public class RussianStemFilterFactory extends BaseTokenFilterFactory { private String charset;/** * @see org.apache.solr.analysis.BaseTokenFilterFactory#init(java.util.Map) */ @Overridepublic void init(MapString, String

Re: Problem with Russian stemmer in Solr 1.2

Hi Andrew Yes, I saw that. As I'm not knowledgeable in Russian I had to infer it was adequate. But as you have much more to add to it, it could be interesting if you could contribute that. The problem is Russian analyzer and it's filters are all final class, don't allowing an elegant extension.

Re: Problem with Russian stemmer in Solr 1.2

to this. -- View this message in context: http://www.nabble.com/Problem-with-Russian-stemmer-in-Solr-1.2-tf4049948.html#a11505646 Sent from the Solr - User mailing list archive at Nabble.com.

Re: Problem with Russian stemmer in Solr 1.2

Hi Andrew In fact I did it creating all the Factories for Solr, but I think you can use it directly, changing your index like this: fieldtype name=cpstext_russian class=solr.TextField positionIncrementGap=100 analyzer type=index class=”org.apache.lucene.analysis.ru.RussianAnalyzer”