Re: probable bug in English stemmer
Andrew Aksyonoff <[email protected]>
| Newsgroups | gmane.comp.search.snowball |
|---|---|
| Message-ID | <[email protected]> |
Hello Martin, Sunday, February 6, 2011, 6:19:44 PM, you wrote: MP> It is very nice to hear from you again after so many years! MP> Yes, the snowball-discuss group goes on as ever, though now MP> I am 66 I'm slowing down somewhat. Richard Boulton of course is MP> still very young. Oh wow... time flies like an arrow. For some reason I thought you were younger, maybe in your fifties. MP> In detail, Porter2 stems MP> exceptionalism to exceptional (step 2) MP> exceptional to exception (step 3) MP> exception to except (step 4) MP> see http://snowball.tartarus.org/algorithms/english/stemmer.html Many thanks for the clarification. It's all clear now. I indeed did not handle -tional and -ational on Step 3 in my implementation, and that made me confuse (valid) Step 3 reduction of -tional for a (buggy) double reduction on Step 4. Just out of curiosity, I wonder if that change was made after 2001. That is, whether I made a bug back then, or just now when doing the update. MP> Similarly the other words you mention. I hope I've got this right: MP> like you, I am now a bit rusty on the English stemmer. I'm getting up to speed again lately. :) -- Best regards, Andrew mailto:[email protected]