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Machine Learning Interview Cheatsheets

 Cheat  Sheet  –Bias-Variance  Tradeoff What  is  Bias? • Error  between  average  model  prediction  and  ground  truth • The  bias  of  the  estimated  function  tells  us  the  capacity  of  the  underlying  model  to predict  the  values What  is  Variance? • Average  variability  in  the  model  prediction  for  the  given  dataset • The  variance  of  the  estimated  function  tells  you  how  much  the  function  can  adjust to  the  change  in  the  dataset High  Bias High  Variance Overly-simplified  Model Under-fitting High  error  on  both  test  and  train  data Overly-complex  Model Over-fitting Low  error  on  train...
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The Business of Making Money

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  Power, Purpose & Productivity When it comes to making money, you are running your own business. Whether you are working for yourself or working for someone else you are working for yourself and for someone else! Making money is your business or your business isn't making money. Making money is what any business must be about if it is to stay in business. You are your own boss and your own employee, even if you are on salary in a business owned by someone else. The most important ingredient for making money is for both the boss and the employee to remain consistently focused on and engaged in productive work for pay. To be as financially productive as possible center your time around that aim. Become deliberately obsessed by your goal's achievement, without losing your balance! This sounds contradictory, but there's a way that it's not.
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