[
https://issues.apache.org/jira/browse/LUCENE-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12534814
]
Mark Miller commented on LUCENE-1029:
-------------------------------------
> With the accent filter, running the Swedish word "kön" through the filter
> would create "kon". The first means "gender" and the second "cow". That would
> not be accetable.
I am feeling lazy right now, but it seems to me you could find a similar rare
stemming example (eg something that means something else in its stemmed form).
The process is algorithmic after all, and there are many language with plenty
of words out there.
Regardless, it doesn't seem this filter claims it will maintain the meaning of
"kön"...rather it will strip the '..' off the top of the 'o'. Its a brute force
and somewhat dangerous filter from the get go...stripping accents its not a
valid language operation that I know of.
I'll leave at that from my side of the argument <g> Let the Lucene gods speak.
> Illegal character replacements in ISOLatin1AccentFilter
> -------------------------------------------------------
>
> Key: LUCENE-1029
> URL: https://issues.apache.org/jira/browse/LUCENE-1029
> Project: Lucene - Java
> Issue Type: Bug
> Components: Analysis
> Affects Versions: 2.2
> Reporter: Marko Asplund
>
> The ISOLatin1AccentFilter class is responsible for replacing "accented
> characters in the ISO Latin 1 character set by their unaccented equivalent".
> Some of the replacements performed for scandinavian characters (used e.g. in
> the finnish, swedish, danish languages etc.) are illegal. The scandinavian
> characters are different from the accented characters used e.g. in latin
> based languages such as french in that these characters (ä, ö, å) represent
> entirely independent sounds in the language and therefore cannot be
> represented with any other sound without change of meaning. It is therefore
> illegal to replace these characters with any other character.
> This means for example that you can't change the finnish word sää (weather)
> to saa (will have) because these are two entirely different words with
> different meaning. The same applies to scandinavian languages as well.
> There's no connection between the sounds represented by ä and a; ö and o or å
> and a.
> In addition to the three characters mentioned above danish and norwegian use
> other special characters such as ø and æ. It should be checked if the
> replacement is legal for these characters.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
