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Ross Kravitz's Blog

 

Works with data in mobile gaming.  PhD in probability.  I like chatting about math, statistics, data science..

 

Ross Kravitz's Comments

Comment In: [Blog - 06/04/2014 - 02:07]

Any details on methodology ...

Any details on methodology

Comment In: [Blog - 04/17/2014 - 01:51]

This problem is actually well ...

This problem is actually well studied in academia and industry, and it 's called collaborative filtering. However, the prime benefit of this method is that it doesn 't require users to manually submit preferences, which is both arduous and not necessarily effective, because it may be hard to quantify what ...

Comment In: [Blog - 04/04/2014 - 04:12]

I think companies already account ...

I think companies already account for a channel 's user quality in the obvious way, which is by computing the average lifetime value for users in that channel. In theory , this is roughly equivalent to your methodology, because it bakes in the effect of users dropping out after a ...

Comment In: [Blog - 04/02/2014 - 08:10]

One disadvantage of the piecewise ...

One disadvantage of the piecewise linear graph instead of a simpler curve is that the former model has a lot more free parameters i.e. each of the breakpoints between linear segments, as well as the price points of the breakpoints . This makes the optimization more difficult. r n r ...

Comment In: [Blog - 02/02/2014 - 03:47]

Thanks for the interesting article. ...

Thanks for the interesting article. The difficulty of level 14 actually isn 't that high, even relative to boards that game before it. One other thing though is that the board before it is really easy. Having a too easy board might butter up the player too much, so that ...