Data Mining Model Viewer of Decision Tree out of memory error


we've processed large decision tree model in sql server 2005. when try view tree in mining model viewer, following error:

 

title: microsoft visual studio
------------------------------

the tree graph cannot created because of following error:

'exception of type 'system.outofmemoryexception' thrown.'.

for help, click: http://go.microsoft.com/fwlink?prodname=microsoft%u00ae+visual+studio%u00ae+2005&prodver=8.0.50727.42&evtsrc=microsoft.analysisservices.viewers.sr&evtid=errorcreategraphfailed&linkid=20476

the link provides no other documentaiton on error.

 

we're using 64-bit sql on dell workstation running xp-64 16gb of memory. view of things aren't close running out of memory. since model processed , error occurs when viewing model, problem visual studio , nont anlaysis services?

 

thanks in advance.

 

nick

it looks tree has large number of nodes (around 34 000) , viewer has troubles handling many nodes , runs out of memory. try address issue in future versions.
meanwhile, here few suggestions:
- increase complexity_penalty or minimum_support parameters of mining model. these reduce complexity of tree, bringing more manageable size.
- use "generic content tree viewer" sample. can downloaded here http://www.sqlserverdatamining.com/dmcommunity/_downloads/1348.aspx
it allows interactive navigation of model content , provides access information inside tree viewer
- use data mining add-in visio -- allows rendering of top levels of tree




SQL Server  >  Data Mining



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