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Is logistic regression liklihood function convex?

User Arne Mertz
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Final answer:

The likelihood function for logistic regression is indeed convex. The convexity property is attributed to the log-likelihood function, which transforms the original likelihood into a concave form.

Step-by-step explanation:

Yes, the likelihood function for logistic regression is convex.

Convexity is a desirable property for optimization problems because it ensures that there is a unique global minimum. In logistic regression, the likelihood function is a log-likelihood function, and the logarithm of the likelihood function is concave.

Therefore, the original likelihood function is convex. This convexity property allows optimization algorithms to efficiently find the maximum likelihood estimates for the logistic regression parameters.

The likelihood function for logistic regression is indeed convex. The convexity property is attributed to the log-likelihood function, which transforms the original likelihood into a concave form.

This convex nature is advantageous for optimization tasks, ensuring that there exists a unique global minimum.

The convexity of the likelihood function is pivotal in facilitating the efficient application of optimization algorithms, such as gradient descent, for finding the maximum likelihood estimates of the model parameters in logistic regression

User Avtandil
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