
From:  Patrick Alken 
Subject:  Re: [Helpgsl] Tikhonov regularization for nonlinear least squares problem 
Date:  Mon, 7 Mar 2016 10:47:24 0700 
Useragent:  Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 
In the nonlinear case, there is no way (that I know of) to easily compute the Lcurve, other than resolving the nonlinear problem many times for different lambdas. So in this case its up to the user to determine how to select lambda. You can of course generate an Lcurve by plotting the residual norm against the solution norm for different lambdas.
Patrick On 03/07/2016 10:30 AM, viktor drobot wrote:
Hi all! I wonder why linear squares fit module has routines for determining the optimal value of lambda which is used in Tikhonov regularization (i. e. by Lcorner approach) while nonlinear module has no such routines? How do you find the optimal lambda value? Thank you!
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