Wekalist Digest, Vol 60, Issue 11 Send Wekalist mailing list submissions to 	iuxxdkqk@list.scms.waikato.ac.nz To subscribe or unsubscribe via the World Wide Web, visit 	https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist or, via email, send a message with subject or body 'help' to 	ohwwlejs-pbfotbp@list.scms.waikato.ac.nz You can reach the person managing the list at 	pobypuhs-hvhzj@list.scms.waikato.ac.nz When replying, please edit your Subject line so it is more specific than "Re: Contents of Wekalist digest..." Today's Topics:    1. Multilayerperceptron results (David Poelz)    2. Re: Wekalist Digest, Vol 60, Issue 10 (Rough Jade) ---------------------------------------------------------------------- >From xlicq@jmellow.org  Sun Feb 24 10:27:37 2008 Message: 1 Date: Fri, 08 Feb 2008 05:39:44 +0100 From: David Poelz  Subject: [Wekalist] Multilayerperceptron results To: "Weka machine learning workbench list." 	 Message-ID: <1202445584.28437.4.camel@poelzd-desktop> Content-Type: text/plain Hi  I am trying to classify a data set with 3 classes with the Multilayerperceptron algorithm using the Weka data mining programm. I am testing various parameter settings to see which one yields the best results. I am experimenting with various learning rates, momentums and delay on/off. So far most of the parameter combinations yielded good results of around 85% correctly classified instances. But every once in a while I find a combination of parameters where the classification doesnt work at all and one (sometimes even two) class(es) seems to be left out of the process and the confusion matrix looks like the following:     a    b    c   <-- classified as     0 6838    4 |    a = '(-inf-0.25]'     0 6728   72 |    b = '(0.25-0.75]'     0 2141 4952 |    c = '(0.75-inf)' I have not found a pattern in the parameters that causes this.  What can be the reason for such behaviour? David ------------------------------ >From futqlhzpaj@gmail.com  Sun Feb 24 10:27:37 2008 Message: 2 Date: Fri, 8 Feb 2008 13:20:04 +0800 From: "Rough Jade"  Subject: [Wekalist] Re: Wekalist Digest, Vol 60, Issue 10 To: iuxxdkqk@list.scms.waikato.ac.nz Message-ID: 	<62a4gi8s0658277462a48682065w2d74i2848i82065w@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" I've installed J2se Runtime environment 5 update14 in my computer, and set the environment variable listed below user variables Variable name- PATH Variable value- c:\\program files\\weka-3-5 However the same error persists. RJ On Feb 8, 2008 11:44 AM,  wrote: > Send Wekalist mailing list submissions to >        iuxxdkqk@list.scms.waikato.ac.nz > > To subscribe or unsubscribe via the World Wide Web, visit >        https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist > or, via email, send a message with subject or body 'help' to >        ohwwlejs-pbfotbp@list.scms.waikato.ac.nz > > You can reach the person managing the list at >        pobypuhs-hvhzj@list.scms.waikato.ac.nz > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Wekalist digest..." > > > Today's Topics: > >   1. RE: Weka 3.5.7.exe installation problems (Danilovich, Yann) >   2. Question (bug?) (Uday Kamath) >   3. Event Sequence Mining (Budziak, G.) >   4. RE: Question (bug?) (Cristina Torres) >   5. RE: where can i find algorithms explanation >      (Nanda, Subrat (GE, Research)) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 7 Feb 2008 15:15:31 -0500 > From: "Danilovich, Yann"  > Subject: RE: [Wekalist] Weka 3.5.7.exe installation problems > To: "Weka machine learning workbench list." >         > Message-ID: >        <280hq5l0ghj79063e80h259kg197r06d28u72590@US-BE3.corp.mpi.com> > Content-Type: text/plain; charset="iso-8859-1" > > Weka 3.5.7 does not work with with jre6.  You need jre5. > > > > 1)       Make sure that your environment path variable points to your > [installation directory]\\jre\\bin; > > 2)       Path to jre5 must be listed before jre6; > > > > Yann > > > > ________________________________ > > From: mackmusd-hbijzgs@list.scms.waikato.ac.nz > [mailto:mackmusd-hbijzgs@list.scms.waikato.ac.nz] On Behalf Of Rough > Jade > Sent: Thursday, February 07, 2008 11:52 AM > To: iuxxdkqk@list.scms.waikato.ac.nz > Subject: [Wekalist] Weka 3.5.7.exe installation problems > > > > Dear List, > > I am a newbie, using weka. i have downloaded the developer version for > windows. i have already installed java j2se jdk1.6 in my machine. i try > installing weka3.5.7.exe. i am facing problem an error shows with a > command prompt(DOS) c:\\programfiles\\weka 3-5-7 with a popup Java > launcher message couldnt find mail.class and application exit. i have > search in wiki and gave the classpath still the same. i have uninstall > the existing java jdk and try with weka3-5-7jre.exe but still the same. > > kindly need some help. iam using WinXP IBM desktop. > > RJ > > > > > This e-mail, including any attachments, is a confidential business > communication, and may contain information that is confidential, proprietary > and/or privileged.  This e-mail is intended only for the individual(s) to > whom it is addressed, and may not be saved, copied, printed, disclosed or > used by anyone else.  If you are not the(an) intended recipient, please > immediately delete this e-mail from your computer system and notify the > sender.  Thank you. > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080207/53fe4920/attachment-0001.html > > ------------------------------ > > Message: 2 > Date: Thu, 7 Feb 2008 15:16:18 -0500 > From: "Uday Kamath"  > Subject: [Wekalist] Question (bug?) > To: iuxxdkqk@list.scms.waikato.ac.nz > Message-ID: >        <925916921402717592j91ml2140mz175r259n69w1y02@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I saw that in version 3.3.4 (also in latest) JRip uses FastVector and when > i > saw running the weather nominal data (14), when the Rule has two > conditions > (humidity = high) and (outlook = sunny) > Pruning of rule calls FastVector.removeElementat(1) which causes the size > to > be reduced but the objects are still held, i.e. antecedents are not > removed > from object, even though size is reduced to 1. If i look at the vector > code > it is > public final void removeElementAt(int index) { > >    System.arraycopy(m_Objects, index + 1, m_Objects, index, >                     *m_Size - index - 1*); >    m_Size--; >  } > > Like in java Vector shouldn't this be *index ? > Uday > * > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080207/35596c15/attachment-0001.html > > ------------------------------ > > Message: 3 > Date: Thu, 7 Feb 2008 23:24:14 +0100 > From: "Budziak, G."  > Subject: [Wekalist] Event Sequence Mining > To: "iuxxdkqk@list.scms.waikato.ac.nz" >         > Message-ID: <84he7592-13qe-889u-c498-vz9eb3468w90@mimectl> > Content-Type: text/plain; charset="iso-8859-1" > >  Dear List, > Currently I'm performing an assignment in which I use WEKA 3.5.7. As input > I take data from a relational database. Below is a sample from this table > stored in a MySQL database. Each row represents an "EVENT": > > ID | USER_X | EVENT_Y | TIME > ---------------------------- > 1    USER_1   EVENT_1    t1 > 2    USER_1   EVENT_3    t2 > 3    USER_1   EVENT_10  t3 > : > j    USER_1   EVENT_1     t_i > j+1  USER_2   EVENT_4   t_i+1 > : > N    USER_A   EVENT_3   t_z > > ID: unique for each row. > USER_X: USER with X an element from the set [0 .. A) identifying a user. > EVENT_Y: EVENT with Y an element from the set [0 .. B) identifying an > event. > > Conneting to the database works fine. Now, I would like to obtain the > following format: > A "User-based B-dimensional vector/dictionary" of all events where each > position in this vector space corresponds to an event and holds a binary > value - 0 or 1 - indicating whether the event occured or not. So duplicates > are neglected. For the sample table below with B = 7 (indicating that there > a 7 different events, numbered 0 through 6), this might look like: > > ID | USER_X | EVENT_Y | TIME > ---------------------------- > 1    USER_1   EVENT_1   t1 > 2    USER_1   EVENT_3   t2 > 3    USER_1   EVENT_4   t3 > 4    USER_1   EVENT_6   t4 > 5    USER_2   EVENT_5   t5 > > USER_1: (0,1,0,1,1,0,1) > USER_2: (0,0,0,0,0,1,0) > > I hope that someone can help me out. > > Kind regards, > > Guido Budziak > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080207/66c11535/attachment-0001.html > > ------------------------------ > > Message: 4 > Date: Fri, 8 Feb 2008 01:09:15 +0000 > From: Cristina Torres  > Subject: RE: [Wekalist] Question (bug?) > To: Weka machine learning workbench list. >         > Message-ID:  > Content-Type: text/plain; charset="iso-8859-1" > > > Hello > > I am Cris, I am new using Weka, I am using using Weka version 3.5.7developer, and I don't know how to put a new filter, I know > that I have to modify Weka but I don't know how to compile the entire > Weka, I am using Windows System. First I am using the guide classifier > example of the guide of Weka. > > If someone can help me please!!! > > Thanks a lot! > > > Cris > _________________________________________________________________ > Express yourself instantly with MSN Messenger! Download today it's FREE! > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080208/8f24cc10/attachment-0001.html > > ------------------------------ > > Message: 5 > Date: Fri, 8 Feb 2008 08:12:26 +0530 > From: "Nanda, Subrat (GE, Research)"  > Subject: RE: [Wekalist] where can i find algorithms explanation > To: "Weka machine learning workbench list." >         > Message-ID: >        <3lc3x56n1hd3l476v90lx5ynph5zl4p639c3x56n@BANMLVEM07.e2k.ad.ge.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > To get a handle on the algorithms and the basics behind each of the > algorithms, be they for clustering, classification or attribute > selection, etc, I suggest  take up a good text book which will help > understand the fundamentals. There are lots of great books available, > which will present a clear and consice picture of the data mining tools, > artificial intelligence methodologies or the machine learning methods, > some of which are implemented in Weka. Here find listed some of the > books you could use for gaining deeper insights: > > 1. To start with, Whitten & Frank's book on Data Mining is a great one. > This is the book Weka refers to. There are also ones by Han; D. Hand on > the same topic and widely used. > 2. For Artificial Intelligence, Russel and Norvig; or Winston; or Knight > or Charniak are widely read authors. > > In addition to all the books, there are a host of materials available on > the internet inthe form of tutorials slides, papers, articles and even > open source training material that can be very useful and also handy. > MIT has a great open source tutorial, most good Universities have some > teaching material posted by professors which you can read. > > Hope this should help, > > Regards, > Subrat > > ________________________________ > > From: mackmusd-hbijzgs@list.scms.waikato.ac.nz > [mailto:mackmusd-hbijzgs@list.scms.waikato.ac.nz] On Behalf Of Andhra > Loyola College > Sent: Thursday, February 07, 2008 12:13 PM > To: iuxxdkqk@list.scms.waikato.ac.nz > Subject: [Wekalist] where can i find algorithms explanation > > > dear weka forum, > >                         I had gone through all the documentations > present in source forge, but i could not find clear explanation of the > algorithms.Can some one tell me where i can find them in Internet. > > thank u. > sunanda > > ________________________________ > > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try > it now. >  2sR8HDtDypao8Wcj9tAcJ> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080208/4f9b22c7/attachment.html > > ------------------------------ > > _______________________________________________ > Wekalist mailing list > iuxxdkqk@list.scms.waikato.ac.nz > https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist > > > End of Wekalist Digest, Vol 60, Issue 10 > **************************************** > -------------- next part -------------- An HTML attachment was scrubbed... URL: https://list.scms.waikato.ac.nz/pipermail/wekalist/attachments/20080208/526a6ed6/attachment.html ------------------------------ _______________________________________________ Wekalist mailing list iuxxdkqk@list.scms.waikato.ac.nz https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist End of Wekalist Digest, Vol 60, Issue 11 ****************************************