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Mark Nasila (PhD)
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  • Johannesburg
  • South Africa
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Mark Nasila (PhD)'s Discussions

SMOTE and adaptive synthetic sampling algorithms in SAS

Started Mar 16, 2016 0 Replies

Hi,I am developing a predictive model for a data-set that is very imbalanced. the ratio between goods and bads is 47500:1. I am exploring SMOTE sampling and adaptive synthetic sampling techniques…Continue

SMOTE sampling in SAS

Started Mar 16, 2016 0 Replies

Hi,I am working on building a supervised model to predict an imbalanced dependent variable.Is there anyone who has the SMOTE sampling algorithm in SAS? or the Adaptive synthetic sampling algorithm in…Continue

Question about R error: 'all arguments must have the same length'

Started this discussion. Last reply by Jigyasa Bisariya May 13, 2016. 2 Replies

Hi Everyone,i am using R to fit svms using the e1071 package. Everything seems fine when i train the model, and even when validating with a different data-set. the training data-set has 1500 records…Continue

Tags: the, same, length, have, must

Handling Imbalanced data when building regression models

Started this discussion. Last reply by Dean Abbott Jul 28, 2016. 14 Replies

Dear colleaques and friends,i would like to know how you go about handling a dataset with imbalanced groups being modelled using a classification model eg logistics regression. As an example, fitting…Continue


Mark Nasila (PhD)'s Page

Profile Information

Short Bio:
Head of Advanced Analytics , Chief Risk Office at First National bank, South Africa.
Field of Expertise:
Predictive Modeling, Data Mining, Statistical Programming
Years of Experience in Analytical Role:
Professional Status:
Your Company:
First National Bank
Your Job Title:
Head of Advanced Analytics , Chief Risk Office at First National bank, South Africa
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