Sequence clustering

This is a discussion on Sequence clustering within the sqlserver-datamining forums in Data Warehousing category; Hi, I've just begin learning data mining in SQL server 2005 and trying to predict the sequence in which customers will take up products. but the problem is that from the prediction, i get for example product A as sequence one, then from sequence 2 to 10, i get all of the same product. but i can see from my data that there are no customers that are like that. Can someone guide me to see where i went wrong? Thanks so much...

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  #1  
Old 08-07-2008, 05:43 PM
Default Sequence clustering

Hi, I've just begin learning data mining in SQL server 2005 and trying
to predict the sequence in which customers will take up products. but
the problem is that from the prediction, i get for example product A
as sequence one, then from sequence 2 to 10, i get all of the same
product. but i can see from my data that there are no customers that
are like that.

Can someone guide me to see where i went wrong?

Thanks so much
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  #2  
Old 08-12-2008, 02:40 AM
Default Re: Sequence clustering

> Hi, I've just begin learning data mining in SQL server 2005 and trying
> to predict the sequence in which customers will take up products. but
> the problem is that from the prediction, i get for example product A
> as sequence one, then from sequence 2 to 10, i get all of the same
> product. but i can see from my data that there are no customers that
> are like that.
>
> Can someone guide me to see where i went wrong?


I guess you did not define key, input and predictable columns correctly.
Let's say, for example, you have Orders and OrdeDetails table. define Orders
as case and OrderDetails as nested table; OrderId fro Orders and ItemId from
OrderDetails as key, ItemId as input as well, and Product as input and
predictable.

--
Dejan Sarka
http://blogs.solidq.com/EN/dsarka/default.aspx

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  #3  
Old 08-12-2008, 09:56 AM
Default Re: Sequence clustering

Hi,
I think it was a key issue.

Lemme try again.

Thank you.

Dejan Sarka wrote:
> > Hi, I've just begin learning data mining in SQL server 2005 and trying
> > to predict the sequence in which customers will take up products. but
> > the problem is that from the prediction, i get for example product A
> > as sequence one, then from sequence 2 to 10, i get all of the same
> > product. but i can see from my data that there are no customers that
> > are like that.
> >
> > Can someone guide me to see where i went wrong?

>
> I guess you did not define key, input and predictable columns correctly.
> Let's say, for example, you have Orders and OrdeDetails table. define Orders
> as case and OrderDetails as nested table; OrderId fro Orders and ItemId from
> OrderDetails as key, ItemId as input as well, and Product as input and
> predictable.
>
> --
> Dejan Sarka
> http://blogs.solidq.com/EN/dsarka/default.aspx

Reply With Quote
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