From owner-chemistry@ccl.net Fri Jul 11 11:43:01 2008 From: "Iain Wallace iain.m.wallace * gmail.com" To: CCL Subject: CCL: Estimating applicability of fingerprint model Message-Id: <-37328-080711114039-5883-pH1IHqHGl2bNIq4kwaWcgw(!)server.ccl.net> X-Original-From: "Iain Wallace" Content-Type: multipart/alternative; boundary="----=_Part_29212_610929.1215790402926" Date: Fri, 11 Jul 2008 11:33:22 -0400 MIME-Version: 1.0 Sent to CCL by: "Iain Wallace" [iain.m.wallace!^!gmail.com] ------=_Part_29212_610929.1215790402926 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi all, I have built a model to classify compounds into two classes using the Pipeline pilot Bayesian fingerprint classifier (ECFP_4 Fingerprints). I was wondering if anyone has any experience on how to estimate how well the model I have built will transfer to other libraries? I know that I should only apply the model to compounds drawn from a similar distribution, but I have no idea how to what steps I should take to ensure that this criteria is met. For instance, I would like to score the Zinc database (all commercially available compounds) to find new interesting molecules, and I am wondering if anyone has any tips on problems I should look out for, Thanks for alot for any advice Iain ------=_Part_29212_610929.1215790402926 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi all,

I have built a model to classify compounds into two classes using the Pipeline pilot Bayesian fingerprint classifier (ECFP_4 Fingerprints).   I was wondering if anyone has any experience on how to estimate how well the model I have built will transfer to other libraries? I know that I should only apply the model to compounds drawn from a similar distribution, but I have no idea how to what steps I should take to ensure that this criteria is met.

For instance, I would like to score the Zinc database (all commercially available compounds) to find new interesting molecules, and I am wondering if anyone has any tips on problems I should look out for,

Thanks for alot for any advice

Iain

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