Robert,
Thanks for the info.
As I said, I am illiterate in Arabic. So I have another, perhaps
nonsensical, question:
Does the stop word list have every combination of upper/lower case for
each Arabic word in the list? (i.e. is it fully de-normalized?) Or
should it come after LowerCaseFilter?
-- DM
On Oct 8, 2009, at 8:37 AM, Robert Muir wrote:
DM, this isn't a bug.
The arabic stopwords are not normalized.
but for persian, i normalized the stopwords. mostly because i did
not want to have to create variations with farsi yah versus arabic
yah for each one.
On Thu, Oct 8, 2009 at 7:24 AM, DM Smith <dmsmith...@gmail.com> wrote:
I'm wondering if there is a bug in ArabicAnalyzer in 2.9. (I don't
know Arabic or Farsi, but have some texts to index in those
languages.)
The tokenizer/filter chain for ArabicAnalyzer is:
TokenStream result = new ArabicLetterTokenizer( reader );
result = new StopFilter( result, stoptable );
result = new LowerCaseFilter(result);
result = new ArabicNormalizationFilter( result );
result = new ArabicStemFilter( result );
return result;
Shouldn't the StopFilter come after ArabicNormalizationFilter?
As a comparison the PersianAnalyzer has:
TokenStream result = new ArabicLetterTokenizer(reader);
result = new LowerCaseFilter(result);
result = new ArabicNormalizationFilter(result);
/* additional persian-specific normalization */
result = new PersianNormalizationFilter(result);
/*
* the order here is important: the stopword list is normalized
with the
* above!
*/
result = new StopFilter(result, stoptable);
return result;
Thanks,
DM
--
Robert Muir
rcm...@gmail.com
