Getting Started with JWPL
Carell
I am a beginner and I would like to create an "information extraction"
program. I am having a really hard time trying to figure out how JWPL
works.
What I did was:
- I installed eclipse
- I downloaded the JWPL 0.8.0 API
The first project I created was based on "Hello World 1" which I found
here: http://code.google.com/p/jwpl/wiki/JwplTutorial but after
running it I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/
hibernate/Session
at T1a_HelloWorld.main(T1a_HelloWorld.java:54)
Caused by: java.lang.ClassNotFoundException: org.hibernate.Session
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
Could somebody please tell me step by step what I need to do to fix
this problem?
Thank you in advance.
A.
Oliver Ferschke
where did you download the API?
The package on the Google Code page requires you to add the included dependency folder to your classpath.
A ready-to-use jar with built-in dependencies can be found on maven central. The API, for example, can be found here:
http://search.maven.org/remotecontent?filepath=de/tudarmstadt/ukp/wikipedia/de.tudarmstadt.ukp.wikipedia.api/0.8.0/de.tudarmstadt.ukp.wikipedia.api-0.8.0-jar-with-dependencies.jar
Before using JWPL, you will need to create a JWPL database with the DataMachine.
You can find the runnable jar here:
http://search.maven.org/remotecontent?filepath=de/tudarmstadt/ukp/wikipedia/de.tudarmstadt.ukp.wikipedia.datamachine/0.8.0/de.tudarmstadt.ukp.wikipedia.datamachine-0.8.0-jar-with-dependencies.jar
The DataMachine is described here:
http://code.google.com/p/jwpl/wiki/DataMachine
Regards,
Oliver
--
-------------------------------------------------------------------
Oliver Ferschke, M.A.
Doctoral Researcher
Ubiquitous Knowledge Processing Lab
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
fers...@tk.informatik.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------
________________________________________
Von: jw...@googlegroups.com [jw...@googlegroups.com] im Auftrag von Carell [andrea....@gmail.com]
Gesendet: Dienstag, 10. Januar 2012 18:37
An: jwpl
Cc: emanuela.d...@gmail.com
Betreff: [jwpl-users] Getting Started with JWPL
Carell
Thank you for your answer.
I downloaded the API from here: http://code.google.com/p/jwpl/downloads/list
I will try it and I will net you know. I am trying to do the same
thing on Windows 7 and Ubuntu. Do you know how I can add the
dependency folder to my classpath in Ubuntu?
Thank you a lot!!!
A.
On Jan 11, 10:32 am, Oliver Ferschke <fersc...@tk.informatik.tu-
> Hi,
> where did you download the API?
> The package on the Google Code page requires you to add the included dependency folder to your classpath.
>
> Before using JWPL, you will need to create a JWPL database with the DataMachine.
> The DataMachine is described here:http://code.google.com/p/jwpl/wiki/DataMachine
>
> Regards,
> Oliver
>
> --
> -------------------------------------------------------------------
> Oliver Ferschke, M.A.
> Doctoral Researcher
> Ubiquitous Knowledge Processing Lab
> FB 20 Computer Science Department
> Technische Universität Darmstadt
> Hochschulstr. 10, D-64289 Darmstadt, Germany
> phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
> -------------------------------------------------------------------
>
> ________________________________________
> An: jwpl
>
> Hello,
>
> I am a beginner and I would like to create an "information extraction"
> program. I am having a really hard time trying to figure out how JWPL
> works.
>
> What I did was:
> - I installed eclipse
> - I downloaded the JWPL 0.8.0 API
>
> The first project I created was based on "Hello World 1" which I found
>
> Exception in thread "main" java.lang.NoClassDefFoundError: org/
> hibernate/Session
> at T1a_HelloWorld.main(T1a_HelloWorld.java:54)
> Caused by: java.lang.ClassNotFoundException: org.hibernate.Session
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> ... 1 more
>
> Could somebody please tell me step by step what I need to do to fix
> this problem?
>
> Thank you in advance.
>
> A.
>
> 6KViewDownload
Oliver Ferschke
Alternatively, just use the respective "jar-with-dependencies.jar" from Maven Central as decribed in my last mail.
It does not need any additional external dependencies.
-----Ursprüngliche Nachricht-----
Von: jw...@googlegroups.com [mailto:jw...@googlegroups.com] Im Auftrag von Carell
Gesendet: Mittwoch, 11. Januar 2012 16:18
An: jwpl
Betreff: [jwpl-users] Re: Getting Started with JWPL
Carell
So I am trying to follow the guide you gave me: http://code.google.com/p/jwpl/wiki/DataMachine
I am at the second step and I get this error while I run the
transformation: "Unable to access jarfile
de.tudarmstadt.ukp.wikipedia.datamachine-0.8.0"
any help?
On Jan 11, 4:24 pm, Oliver Ferschke <fersc...@tk.informatik.tu-
> 8KViewDownload
Torsten Zesch
> transformation: "Unable to access jarfile
> de.tudarmstadt.ukp.wikipedia.datamachine-0.8.0"
Please provide more details.
What command are you trying to execute?
What is your operating system?
Without more details, it's impossible to say what's going on.
-Torsten
Carell
I am using eclipse on both Windows 7 and Ubuntu.
I am following this guide here:
http://code.google.com/p/jwpl/wiki/DataMachine
I am at step 2:
"Run the transformation:
java -jar JWPLDataMachine.jar [LANGUAGE] [MAIN_CATEGORY_NAME]
[DISAMBIGUATION_CATEGORY_NAME] [SOURCE_DIRECTORY]"
I am wondering... what EXACTLY should I write instead of "[LANGUAGE]
[MAIN_CATEGORY_NAME] [DISAMBIGUATION_CATEGORY_NAME]
[SOURCE_DIRECTORY]"?
i tried to write this (as shown in the example): "java -jar
JWPLDataMachine.jar english Contents Disambiguation_pages ~/enwiki/
20081013"
but, in Ubuntu, I get this error:
"log4j:WARN No appenders could be found for logger
(org.springframework.beans.factory.xml.XmlBeanDefinitionReader).
log4j:WARN Please initialize the log4j system properly."
-HOW CAN I INITIALIZE THE LOG4J SYSTEM PROPERLY?
while on Windows 7 (italian language) I get this other error:
"nessun attributo manifest principale in C:\Users\User\workspace\JWPL
\JWPLDataMachine.jar" which in English would be "No main manifest
attribute in C:\Users\User\workspace\JWPL\JWPLDataMachine.jar"
Could you please help me step by step? Thank you so much.
A.
On Jan 14, 10:39 pm, Torsten Zesch <torsten.ze...@googlemail.com>
wrote:
Torsten Zesch
> JWPLDataMachine.jar english Contents Disambiguation_pages ~/enwiki/
> 20081013"
Looks good.
You might want to assign more memory by -Xmx4g (assumming that you
have enough memory.
> but, in Ubuntu, I get this error:
> "log4j:WARN No appenders could be found for logger
> (org.springframework.beans.factory.xml.XmlBeanDefinitionReader).
> log4j:WARN Please initialize the log4j system properly."
> -HOW CAN I INITIALIZE THE LOG4J SYSTEM PROPERLY?
This is a known issue (many users have been confused by this message).
You can safely ignore it.
If there are no other errors, I think you just have to wait from there on.
> while on Windows 7 (italian language) I get this other error:
> "nessun attributo manifest principale in C:\Users\User\workspace\JWPL
> \JWPLDataMachine.jar" which in English would be "No main manifest
> attribute in C:\Users\User\workspace\JWPL\JWPLDataMachine.jar"
Which version of the DataMachine.jar did you download?
-Torsten
Carell
Thanks for your fast answer.
-If I try -Xmx4g I get the same error.
-I'm using the 0.8.0 version
:( I need to setup this JWPL otherwise I cannot start programming....
aaaaahhhh why is it so hard??? :(
On Jan 15, 8:39 pm, Torsten Zesch <torsten.ze...@googlemail.com>
wrote:
Oliver Ferschke
Or from Maven central?
Try the Maven Central jar with included dependencies. This should work:
-Oliver
________________________________________
Von: jw...@googlegroups.com [jw...@googlegroups.com] im Auftrag von Carell [andrea....@gmail.com]
Gesendet: Sonntag, 15. Januar 2012 20:50
An: jwpl
Betreff: [jwpl-users] Re: Getting Started with JWPL
Hello,
Carell
I tried to use the jar you linked me and, now, on WIndows 7 I get the
same error that I get on Linux:
"log4j:WARN No appenders could be found for logger
(org.springframework.beans.factory.xml.XmlBeanDefinitionReader).
log4j:WARN Please initialize the log4j system properly."
Damn... this is so hard to figure out!
=(
On Jan 15, 9:04 pm, Oliver Ferschke <fersc...@tk.informatik.tu-
> Is it the version from Google Code?
> Or from Maven central?
>
> Try the Maven Central jar with included dependencies. This should work:
>
>
> -Oliver
>
> ________________________________________
> Von: jw...@googlegroups.com [jw...@googlegroups.com] im Auftrag von Carell [andrea.care...@gmail.com]
> 7KViewDownload
Oliver Ferschke
We'll provide a proper configuration for the logger soon.
It should not affect the rest of the software.
--
-------------------------------------------------------------------
Oliver Ferschke, M.A.
Doctoral Researcher
Ubiquitous Knowledge Processing Lab
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
fers...@tk.informatik.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------
________________________________________
Von: jw...@googlegroups.com [jw...@googlegroups.com] im Auftrag von Carell [andrea....@gmail.com]
Gesendet: Mittwoch, 18. Januar 2012 17:35
Carell
mentioned here in step 3 --> http://code.google.com/p/jwpl/wiki/DataMachine
"This should create a lot of new data files in a "output" subfolder of
each input folder. "
I am so confused
On Jan 18, 6:33 pm, Oliver Ferschke <fersc...@tk.informatik.tu-
> This is not a problem. Just let it run.
> We'll provide a proper configuration for the logger soon.
> It should not affect the rest of the software.
>
> --
> -------------------------------------------------------------------
> Oliver Ferschke, M.A.
> Doctoral Researcher
> Ubiquitous Knowledge Processing Lab
> FB 20 Computer Science Department
> Technische Universität Darmstadt
> Hochschulstr. 10, D-64289 Darmstadt, Germany
> phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
> -------------------------------------------------------------------
>
> ________________________________________
> 8KViewDownload
Oliver Ferschke
Does the DataMachine terminate after the log4j configuration message?
It should keep on running. Depending on your system and the Wikipedia-Dump you want to process, it could take a couple of minutes up to a couple of hours until any data is written.
--
-------------------------------------------------------------------
Oliver Ferschke, M.A.
Doctoral Researcher
Ubiquitous Knowledge Processing Lab
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
fers...@tk.informatik.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------
________________________________________
Von: jw...@googlegroups.com [jw...@googlegroups.com] im Auftrag von Carell [andrea....@gmail.com]
Gesendet: Mittwoch, 18. Januar 2012 18:50
Carell
class where I put this code: http://goo.gl/qn5TO
IT DOES NOT WORK! I keep receiving always the same errors.
- I just found a text file file, named 20120118_170419, in C:\users
\userid. Here is what I found inside:
"Date/Time","Total Memory","Free Memory","Message"
"2012.01.18 17:04:19","63242240","53117880",". is not a directory.
Continue read from C:\Users\userid\."
"2012.01.18 17:04:19","63242240","53117880","Not all necessary
source files could be found in ~/enwiki/20081013"
- "Does the DataMachine terminate after the log4j configuration
message?"
No, it doesn't terminate, I keep receiving other errors (please
help):
log4j:WARN No appenders could be found for logger
org.hibernate.exception.JDBCConnectionException: Cannot open
connection
at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:
74)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:
43)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:
29)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:
426)
at
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:
144)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119)
at
org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:
57)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:
1327)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.hibernate.context.ThreadLocalSessionContext
$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:
301)
at $Proxy0.beginTransaction(Unknown Source)
at de.tudarmstadt.ukp.wikipedia.api.MetaData.<init>(MetaData.java:40)
at de.tudarmstadt.ukp.wikipedia.api.Wikipedia.<init>(Wikipedia.java:
79)
at T1a_HelloWorld.main(T1a_HelloWorld.java:29)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
Communications link failure
The last packet sent successfully to the server was 0 milliseconds
ago. The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown
Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:
1118)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:343)
at
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:
2308)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:
2122)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown
Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
at
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:
289)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:
110)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:
423)
... 13 more
Caused by: java.net.UnknownHostException: SERVER_URL
at java.net.InetAddress.getAllByName0(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at java.net.InetAddress.getAllByName(Unknown Source)
at
com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:
246)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:292)
... 28 more
On Jan 18, 11:23 pm, Oliver Ferschke <fersc...@tk.informatik.tu-
> It should.
> Does the DataMachine terminate after the log4j configuration message?
> It should keep on running. Depending on your system and the Wikipedia-Dump you want to process, it could take a couple of minutes up to a couple of hours until any data is written.
>
> --
> -------------------------------------------------------------------
> Oliver Ferschke, M.A.
> Doctoral Researcher
> Ubiquitous Knowledge Processing Lab
> FB 20 Computer Science Department
> Technische Universität Darmstadt
> Hochschulstr. 10, D-64289 Darmstadt, Germany
> phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
> 9KViewDownload