Data Intelligence, Business Analytics
Data Science Central Channel for Business Analytics, Data Intelligence, Predictive Modeling, Operations Research, Data Mining.
Posted by Olga on September 27, 2016 at 7:30pm
Posted by Arbuda Dave on August 10, 2016 at 2:00am
Posted by Kartik Patel on August 12, 2016 at 2:00am
Posted by Pradip Banerjee on August 3, 2016 at 8:00pm
Dear all ,After I set up a logistic regression ,KS =43, but after 2 months,when i tested the new population , KS = 31, what will be the reasons?It is a default model.Continue
Started by FRANK in Data Mining Software Sep 27.
We see them all the times, some companies are still using them to hire people - a bad idea in my opinion. Anyway I've found this one posted on Facebook by one of my friends, and supposedly it went viral and was seen more than a million times. I've…Continue
In market mix models, my sales(y) depends on 4 promotions(p1--p4). Let (b11, b21, b31, b41 ) be the coefficients of p1--p4 in one iteration and (b12, b22, b32, b42 ) be the coefficients in the second iteration. I check the validity of the model…Continue
Started by Raghu Chittari in Business Analytics Jun 19.
I am relatively new to predictive modeling techniques and would like to get a few concepts cleared/discussed. I am currently in the process of building a logistic regression model using Weight of Evidence (WOE) technique. Here follows some…Continue
Started by Sayantan Bhattacharya in General Technical Questions Jun 27.
Hello All,I am building random forest on employee churn data where %events(churns) is 8%.Is there any upper cutoff on the number of trees I mention in the RF command?Which accuracy metric should I use to compare one model to…Continue
Started by Raghu Chittari in Data Mining Software Jul 12.