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Ayush Biyani
  • Male
  • Gurgaon, Haryana
  • India
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Profile Information

Short Bio:
Deeply interested in analytics because of its link to maths and business..maintain a blog.
My Website or LinkedIn Profile (URL):
http://ayushb.blogspot.com
Field of Expertise:
Business Analytics, Predictive Modeling, Data Mining, Quant, Econometrics, Vizualization, Statistical Consulting
Years of Experience in Analytical Role:
1
Professional Status:
Consultant
Interests:
Finding a New Position, Networking, New Venture, Other
What is your Favorite Data Mining or Analytical Website?
http://stats.stackexchange.com
Your Company:
Kie square consulting
Industry:
consulting
How did you find out about AnalyticBridge?
internet

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.

 

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