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26 May 2008
Sequential pattern mining algorithm
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Hello,
I´m working on my thesis and I need the implementation of any sequential pattern mining algorithm. I have searched in the internet for the source code of gsp, prefixscan, spade in C# (I´m developing a project in this language) without any luck.
Could anyone help me to find one? Would be easier to search the code in other language (Java, C++)? (in that case, I would have to include the library in my project)
Thanks. Adrián (abender@nosis.com.ar).
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25 May 2008
to fill multiple field values based on condition
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Hi
I am using SPSS Clementine 11.1. For ex: if i have 5 fields, field1, field2, field3, field4, field5.
I want to replace the values present in all the fields based on the condition.
i.e. if the values of the fields are occuring greater than 3600, then that field value should be replaced by field/2
for ex: field1 = 7200 then the value should be replaced by 7200/2 i.e. 3600
I am using the filler node and under the condition option the condition given is
(@FIELD > 3600)
I am not able to give the proper condition "under replace" with options so that the values which are occuring at multiple fields which are greater than 3600 should be reduced to half of the value.
Can anyone help in this matter.
Thank you
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23 May 2008
Multinomiale logistic regression
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hello everybody,
i am a student from germany, working on my bachelor thesis about an multinomiale logistic regression issue. I m using Clementine 11.1 and I hope someone could give an answer to my questions:
Ok, my response varible falls into 5 categories/values. These values are ordered. Because I have to mention some theoretical aspects in my thesis as well I have to know whether the Logistic-Node is able to deal with this information or not. So far I haven't seen an option where I could choose between ordered or non-ordered model. It could be "Base category for target" but i m not sure...
Does somebody know if clementine uses two different algorithms depending on ordered / non-ordered response variable?
Thank you for responding!
regards Jay
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22 May 2008
TimeSeries Difficulty
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Hi!
I am having difficulty generating a time series forecast for a series data...even if the model generates the nudget ok....it says some of the fields have not been specified while in truth they have...i checked all possible settings and still cannot figure out why thus haooens...i attached the zipped version of the stream and source file...
hope you can help me
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22 May 2008
Non-Random Partiotioning
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Hello Friends!
I am using Clementine to try to predict substantial increases in the time series data (stock prices). I used the partition node to break up my data in two parts and generate a C&R decision tree. The analysis of the resultant model shows that the model works with 84 percent accuracy on both the testing and the training dataset. I was naturally surprised by this outcome because I didn’t spend much time on selecting the predictors and was expecting a far worse result on the testing partition. I reviewed the rules and noted that they seem to apply to the whole dataset – they are based on the continuous variables which change gradually through the whole period. So when the partition mode splits up the data – even though the training and test records are held separate – they are actually very close to each other – because they are randomly chosen. I decided to create my own partition outside of the Clementine and broke the data into two different parts – one prior to some data and the other after that date. The result on the performances was terrible – its showed no correlation whatsoever on the test partition. So my question is how do I split the time series data into two cohesive parts (say one before January 2005 and the other after January 2005) for the purpose of the model building without randomly dissecting it – as does the partition node?
Looking forward to hear what you think
Dima
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21 May 2008
datamining based intrusion detection system-anamoly detection
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i have a research in this area i need a source code for anamoly detection or outlier detection algorithm if found
i need it urgenty and if there is any one work in this area please assist me .thanks for your help
this my email :rasha_800@hotmail.com
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19 May 2008
Need prefix span code
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Hello,
I want to use the prefix span algorithm in my research. Please if any body have the source code in C/C++ or java then send me on the following address. I will be thankful to you.
address: n_4_naveedali@hotmail.com
Regards,
Naveed
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14 May 2008
Difficulties in result interpretation
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Neural network and SVM sometimes work well over other models. However, we just don't know how to use the generated models to help us make decision, e.g.
If Attr1 > 3 AND Attr3 = "Yes"
then category = 1
Are NN and SVM black boxes so we have to feed every new instance into a computer and let the models decide for us? We have no choices but have to resort to, say, decision tree, to make ourselves understand what's been learnt from the dataset?
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12 May 2008
Alternatives to Clustering
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Hi,
Are there any more comparable alternatives to clustering except classification?
The output should be some grouping-like structure. I found a few other Data Mining methods (e.g. association or regression), but they don't produce usable results in this case.
Thank you in advance.
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11 May 2008
I need ur help to get source code of c4.5 algorithms in java pls...
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Hi,
Myself Putih frm indonesia, I need ur help. Did u get the code of C4.5 algorithm by java?
If u have it cud u give it to me als...,
I wil so very-very thankful to u or any references...
Plz do rply! My eid is putih_herdias@yahoo.com
Thanx, Putih 
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11 May 2008
please... Need Decision tree(ID3) source in C
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Help... plz
dddaxter@gmail.com
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11 May 2008
please... Need ID3 source in C
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Help...
dddaxter@gmail.com
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10 May 2008
Association rule mining for general store by c++ in vc++ envior.
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Hello friends, i m doing a project on association rule mining and implementing fpgrowth algorithm so can u pls
so can u pls help me in getting coding for the same in c++ in vc++ enviornment...
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08 May 2008
Is there a online web log mining platform?
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I am doing some researches on web log mining. I don't know how to do experiment abot the clustering algorithm. Is there any online or offine platform available? Where can I dowload some free log files?
Can anybody kindly give some information about the quesations above if you know it ?
I appreciate you help!
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05 May 2008
Export Clementine stream to SQL
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Hi,
I was wondering if there are any options to export a stream I put to together in Clementine to SQL.
I saw that it is possible to export a model to SQL but that's not really what I'm looking for.
I really want to have the process of selecting meaningful data put into SQL.
Cheers,
Pete
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02 May 2008
For loop - how to retain values from each of the iterations
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Hi,
I am running a for loop in which i output a 1 by k vector observation at each iteration. I want to create an array of all the observations. At the moment, I am only able to either create a separate table for each observation, or a single table that has only the observation from the final iteration. The pseudo code for what I want to do is something like this:
create empty array
for i=1 to n
select a record from set
store record as the ith entry in array
endfor
export array
Any help would be greatly appreciated.
Thank you