I was at an adtech company in 2007 where the CEO and research teams became obsessed with Kalman filters for the purposes of optimizing ad campaigns on google an

I was at an adtech company in 2007 where the CEO and research teams became obsessed with Kalman filters for the purposes of optimizing ad campaigns on google and msn networks. It kind of worked from what I remember but I can’t find the patent filings any longer and Zeta & Walmart bought the tech.