you can choose ik : http://code.google.com/p/ik-analyzer/ for this
problem. It generates a better token result than standard and CJK. And,
you can use its IKQueryParser instead of queryparser. It generates "and
queries" instead of " phrase queries".
On 2010年07月01日 20:47, Robert Muir wrote:
its really just a bad situation for chinese :(
with queryparser, you either get no phrase query support (by using the
hack), or all queries automatically become phrase queries.
if you want to do the equivalent of *在电力虎*, then you need to use queryparser
without the hack, just do a query of "在电力虎" (with quotes).
if you want to do the equivalent of 在 电 力 虎, then you need to use
queryparser with the hack, just do a query of 在电力虎 (without quotes).
2010/7/1 Kolhoff, Jacqueline - ENCOWAY<kolh...@encoway.de>
Ok, understand!
So it is better to use another analyzer in the chinese case at index-time
or do you suggest to use another "QueryParser" at query-time?
-----Ursprüngliche Nachricht-----
Von: Robert Muir [mailto:rcm...@gmail.com]
Gesendet: Donnerstag, 1. Juli 2010 14:35
An: java-user@lucene.apache.org
Betreff: Re: Lucene and Chinese language
2010/7/1 Kolhoff, Jacqueline - ENCOWAY<kolh...@encoway.de>
As you can see, the query parser automatically added double quotes and
blanks. But this does not work for our English or German queries.
If I use the PositionHackAnalyzerWrapper and the case with * I got no
results, query is:
+anotherfieldname:description +myfieldname:*在电力虎*
If I remove the * the query is:
+ anotherfieldname: description
+(myfieldname:在myfieldname:电myfieldname:力myfieldname:虎)
and I got results but not for German or English queries.
Weird?
its working correctly, your chinese wildcard query doesnt make sense, as
you
havent indexed the text in a way to do queries like that (you have indexed
individual chars).
in practice this is where you would do a chinese phrase query of "在电力虎"
(with quotes) instead of *... but if you use the positionfilterhack, you
cant do phrase queries.
--
Robert Muir
rcm...@gmail.com
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