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-   -   How to approx. bias in real learning scenarios? (http://book.caltech.edu/bookforum/showthread.php?t=4376)

samihaq 07-15-2013 10:58 AM
How to approx. bias in real learning scenarios?
 
Hi,
I have a basic question i.e In real learning situations,we wont have many datasets to calculate average hypothesis but only one. So how can we calculate bias and variance in real life learning cases??

thanks

yaser 07-15-2013 01:31 PM
Re: How to approx. bias in real learning scenarios?
 
Quote:
Originally Posted by samihaq (Post 11264)
Hi,
I have a basic question i.e In real learning situations,we wont have many datasets to calculate average hypothesis but only one. So how can we calculate bias and variance in real life learning cases??
In general, we can't. Bias and variance are theoretical tools for illustrating the tradeoff between approximation and generalization.


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