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Old 08-26-2012, 10:19 PM
tzs29970 tzs29970 is offline
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Join Date: Apr 2012
Posts: 52
Default Re: HW 7, Q5 - a bit vague formulation

Some things to check:
  • Are you sure you are testing the right models? It would be easy for an off by one error when picking components of your model to mess up your results.
  • Make sure you are splitting the data into training and validation sets correctly. In particular, for the second set some people have been confused over whether the training set is the first 10 points or the last 10 points.
  • Are you perhaps using linear regression code you wrote for last week's problems? Did you write that code to default to doing regularization, since we were doing regularization last week? The problem this week didn't say to use regularization.

I'm pretty sure that if the code is right, there will be no doubt which answers to choose.
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