Showing posts with label contain. Show all posts
Showing posts with label contain. Show all posts

Monday, March 26, 2012

Mining structure has to contain at least 2 mining models to see their accuracy charts?

Hi ,all here,

Thank you very much for your kind attention.

I just found that I am not able to view the accuracy chart for my mining model. The error message is: no mining models are selected for comparision. Which is quite strange.

Any guidance? thank you very much.

With best regards,

Yours sincerely,

Can you provide more details? The only scenario I can think of where this would happen is where the first model was a clustering model that had no predictable attributes.|||

Hi, Jamie,

Yes, my mining model is clustering model. So as you mentioned, seeing the accuracy chart of clustering model is restricted in there? If so, what's the resolution? Thank you very much for your further guidance.

With best regards,

Yours sincerely,

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The accuracy chart is only useful if your model has a predictable attribute (column), and the accuracy of the prediction can be evaluated against some test data. If your clustering model does not have a predictable attribute, the accuracy chart cannot be used.

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Hi, Bogdan, thank you very much for your guidance.

So in what way can we verify if the clustering model is good enough or not?

With best regards,

Yours sincerely,

Friday, March 9, 2012

Migration Task

Hi guys.

I have a hard task to solve. I need to migrate 3 databases from an old SQL 6.0 (yes, it still exists!) to a new SQL 2000. These 3 dbs contain only tables and stores procedures. The sizes are:

DB_INews : 6.0GB
DB_Balanco : 600MB
DB_Invest : 100MB

I think I will have problems with DB_INEWS, because it contains tables with 2 million lines.

What is the best option to do this migration?

Cheers,

FabianoIF the databases are in SQL 6.0 version the only way is to upgrade it to 6.5 version and then choose UPGRADE WIZARD from 6.5 to SQL 2000. There is no other go to migrate data directly.