regularization of matrix using L1 norm?

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lohith 2014-12-29

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回答： prabhat kumar sharma 2024-2-13

hi,

i am finding a solution for "x" in the equation AX=Y

where A is a underdetermined matrix....

when i surf through internet i got an idea about regularization using L0,L1,l2 norms in matlab.

to min the solution of Ax-y^2 using L1 norm

but i dont know how to find the solution and the command used for L1 norm in matlab...

please suggest , thanks in advance :)

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Answer 1

prabhat kumar sharma 2024-2-13

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Hi lohith,

I understand you did not find any documentation for the L1 regularization while you find the below documentation for the L2 Regularization: https://www.mathworks.com/help/deeplearning/ref/nnet.cnn.layer.layer.setl2factor.html

In the Statistics and Machine Learning Toolbox, functions like lassoglm directly implement Lasso regression for linear models and generalized linear models, respectively.

You can find the documentation here: Lasso or elastic net regularization for generalized linear models - MATLAB lassoglm - MathWorks India

I hope it helps!