Bug 523684 - Weka fails to work with LibSVM
Summary: Weka fails to work with LibSVM
Alias: None
Product: Fedora
Classification: Fedora
Component: weka
Version: 12
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Milos Jakubicek
QA Contact: Fedora Extras Quality Assurance
Depends On: 524108
TreeView+ depends on / blocked
Reported: 2009-09-16 12:53 UTC by Tadej Janež
Modified: 2010-04-03 04:42 UTC (History)
1 user (show)

Fixed In Version: weka-3.6.2-2.fc12.1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-03-04 00:08:11 UTC

Attachments (Terms of Use)

Description Tadej Janež 2009-09-16 12:53:38 UTC
Description of problem:
Weka's LibSVM component doesn't work as other classifiers and returns the:
"libsvm classes not in CLASSPATH!" error.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Start Weka Explorer
2. Load some data
3. Select Classify tab and choose the LibSVM classifier
4. Press Start
Actual results:
Weka produces the following error:
Command: weka.classifiers.functions.LibSVM -S 0 -K 2 -D 3 -G 0.0 -R 0.0 -N 0.5 -M 40.0 -C 1.0 -E 0.001 -P 0.1
libsvm classes not in CLASSPATH!

Comment 1 Tadej Janež 2009-09-16 12:57:10 UTC
Just one more note, I have the following LibSVM packages installed:

Comment 2 Milos Jakubicek 2009-09-17 21:23:44 UTC
There are actually three problems:

1) weka doesn't Requires: libsvm-java

2) if installed, libsvm-java is not in the classpath

Adding the following line to /usr/bin/weka: 

set_classpath "libsvm.jar" (before run "")

would be enough if libsvm.jar would be placed correctly in /usr/share/java. 

3) as this is not the case, you should now modify /usr/bin/weka in the following way:

. /usr/share/java-utils/java-functions
set_classpath "weka.jar"
export CLASSPATH="/usr/share/libsvm/java/libsvm.jar:$CLASSPATH"
run ""

I've filed bug 524108 and would like to fix this and release updates after that one is resolved together with updating to 3.6.1.

Thanks for reporting!

Comment 3 Tadej Janež 2009-09-18 14:22:32 UTC
Ok, perfect!

Thanks for your quick response!

Comment 4 Tadej Janež 2009-10-21 12:27:08 UTC
Just a "ping" on how should we proceed with this issue.

Since libsvm-java-2.89-4.fc10.i386, libsvm.jar is now correctly placed in /usr/share/java.

Should weka now require libsvm-java and should we fix /usr/bin/weka according to 2) from your previous comment?

As is now, weka still doesn't work with LibSVM out of the box.

Comment 5 Bug Zapper 2009-11-18 12:14:51 UTC
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Approximately 30 (thirty) days from now Fedora will stop maintaining
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this bug will be closed as WONTFIX if it remains open with a Fedora 
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Comment 6 Tadej Janež 2009-11-19 14:26:50 UTC
Another "ping", same as in comment #4 is still true for F12.

Comment 7 Fedora Update System 2010-03-02 19:00:48 UTC
weka-3.6.2-1.fc12 has been submitted as an update for Fedora 12.

Comment 8 Tadej Janež 2010-03-03 09:12:54 UTC
Ok, thank you for working on fixing this bug.

I still have another request:
Weka package should require libsvm-java as you said in comment #2.

I think this is the last piece missing to seamless SVM support in Weka.

Comment 9 Milos Jakubicek 2010-03-03 11:59:05 UTC
Of course, I'm totally dumb -- sorry! New builds are already going on...

Comment 10 Fedora Update System 2010-03-03 12:37:26 UTC
weka-3.6.2-2.fc13 has been submitted as an update for Fedora 13.

Comment 11 Fedora Update System 2010-03-03 12:49:22 UTC
weka-3.6.2-2.fc12 has been submitted as an update for Fedora 12.

Comment 12 Fedora Update System 2010-03-04 00:08:06 UTC
weka-3.6.2-2.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 Fedora Update System 2010-04-01 22:43:06 UTC
weka-3.6.2-2.fc12.1 has been submitted as an update for Fedora 12.

Comment 14 Fedora Update System 2010-04-03 04:42:31 UTC
weka-3.6.2-2.fc12.1 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

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