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Ayush Biyani
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  • Gurgaon, Haryana
  • India
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Kie square consulting
Job Function:
Business Analytics, Predictive Modeling, Data Mining, Quant, Econometrics, Vizualization, Statistical Consulting
Short Bio:
Deeply interested in analytics because of its link to maths and business..maintain a blog.
LinkedIn Profile:
Finding a New Position, Networking, New Venture, Other

Ayush Biyani's Blog

low accuracy in out of time dataset

Posted on June 1, 2011 at 6:44am 7 Comments


Hi guys..I am working on a logistic model. When I did out of sample validation, my percentage detection of the defaulters was 80%. The next I tried is out of time validation. To my dismay the accuracy(percent detection) came down to 33% this time. I am wondering and disappointed by what could have happened. I have profiled both the population and found differences in the distribution of few categorical variables.


Please pour in your ideas as to what can be done to…


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