# Alternative barriers to log barrier for interior-point method

MathOverflow Asked by fusiled on September 10, 2020

In the interior-point method the log barrier, i.e $$-mu log(f_i(x)$$ where $$f_i(x)$$ is one of the inequality constraints of a problem, is commonly used to remove the inequality constraints. I wonder if it is possible to use a different function as barrier? Are there any kind of criteria to build a "custom barrier" given a specific linear (or non-linear) program?

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