+dev @Delroy: Well even if you did correct the spelling. I believe SnowballAnalyzer cannot be instantiated without a parameter like StandardAnalyzer.
Constructor signature is: SnowballAnalyzer(String name); @dev: I am not a java reflection expert. But is there a way we can find the parameters of the constructor and automatically put some dummy values in it? Robin On Wed, Apr 21, 2010 at 12:23 AM, Robin Anil <robin.a...@gmail.com> wrote: > org.apache.lucene.analysis.snowball.SnowballAnalyzer > > Check spelling > > On Tue, Apr 20, 2010 at 10:23 PM, Delroy Cameron <delroy.came...@gmail.com > > wrote: > >> >> Grant, >> >> i'm trying to generate the Sequence Vectors using the SnowballAnlyzer as >> opposed to the StandardAnlyzer. I've already gone through this process >> using >> the StandardAnlyzer and plotted the output clusters using the k-means dump >> file, so i'm familiar with clustering in Mahout. i'd like to repeat this >> exercise with the SnowballAnlyzer, running the following command. >> >> ./mahout seq2sparse -s 2 -a >> org.apache.lucene.anlysis.snowball.SnowballAnlyzer -chunk 100 -i >> /home/hadoop/tmp/trecdata-seqfiles/chunk-0 -o >> /home/hadoop/tmp/trecdata-vectors -md 1 -x 75 -wt TFIDF -n 0 >> >> 1) i've placed the lucene-snowball jar in the m2 repository >> /home/delroy/.m2/repository/org/apache/lucene/lucene-snowball/2.9.1 >> >> 2) and i also updated the Mahout_CORE/pom xml to reflect the dependency >> <!-- updated by Delroy to use Snowball Anlyzer --> >> <dependency> >> <groupId>org.apache.lucene</groupId> >> <artifactId>lucene-snowball</artifactId> >> <version>2.9.1</version> >> </dependency> >> >> 3) then i did a mvn install on the Mahout_CORE and on Mahout_ROOT, which >> downloaded the lucene-snowball pom and lucene-snowball pom sha1 to the m2 >> repository >> >> this error seems to stem from developer code, which incidentally notes >> that >> you should not instantiate the anlyzer at >> SparseVectorsFromSequenceFiles.java:176 any suggestions here? >> >> Output: >> Exception in thread "main" java.lang.InstantiationException: >> org.apache.lucene.anlysis.snowball.SnowballAnlyzer >> at java.lang.Class.newInstance0(Class.java:357) >> at java.lang.Class.newInstance(Class.java:325) >> at org.apache.mahout.text.SparseVectorsFromSequenceFiles.main() >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:616) >> at >> >> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) >> at >> org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) >> at >> org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:172) >> >> PS: I just love the spam filter..won't let me write too many variants of >> the >> word Analyzer because it contains the word anal. >> >> >> ----- >> --cheers >> Delroy >> -- >> View this message in context: >> http://n3.nabble.com/SnowballAnalyzer-tp729983p732912.html >> Sent from the Mahout User List mailing list archive at Nabble.com. >> > >
