Clustering problem

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From: "anonymous_user@xxxxxxxxxxxxxxxxxxxxxxx" <anonymous_user@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 02 Jun 2006 03:40:45 GMT

Dear All,
SQL server 2005 gives two algorithm for clustering.EM and K- means. I want to know the difference between these two.

Also if u can help me to identify the method for cluster below attributes, I would be much thankful to you.
If my data set has values like age,district Average score, birth year and so on.

What is the clustering method can be applied.
Pls tell me. This is a population so we need to use scale one.

Pls help me....
Menik
.

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