"Vincent,
I don't think your test proves anything at all. There are a raft of biases. Not the least of which is the exact reverse of what you did. The posting of bogus jobs by recruiters looking for ammunition for their putty cannons. I…"
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Mike O'Neil commented on Sandeep Kumar Srivastava's blog post Logistics regression-ROC curve
"Sandeep, you need to understand that the ROC curve is a plot where the points on the plot are calculated from the counts in the confusion matrix for a given model score cut-off. If you take the output of the ctable pprob=0.1 to 1 by 0.1 then…"
Mike O'Neil commented on Vincent Granville's blog post Debunking lack of analytic talent
"Jwinburnc - it is even more distressing when a direct report to the CE does not understand the difference between a stock and a flow! We are having the same issue with understanding. We find we cannot use some better performing models because…"
Mike O'Neil commented on Vincent Granville's blog post Debunking lack of analytic talent
"600 applicants for a single role is a pain in the butt if you are a hiring manager running the process yourself. Quantity ^= Quality. But then if you are a recruiter who makes money by throwing putty at the wall, hoping that some of it sticks, 600…"
Mike O'Neil commented on Marcel Remon's blog post Seven questions about real time analytics
"Re Q7, there is no magic other than the simple arithmetic that for any ROI to be > 1, R just needs to be bigger than I. (ROI=R/I)
Is this question really about how to attribute the contribution of data science relative to the other…"
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