mu_oracle:

Oracle for a new barrier parameter in the adaptive strategy. $\;$
Determines how a new barrier parameter is computed in each "free-mode" iteration of the adaptive barrier parameter strategy. (Only considered if "adaptive" is selected for option "mu_strategy"). The default value for this string option is "quality-function".
Possible values:

• probing: Mehrotra's probing heuristic
• loqo: LOQO's centrality rule
• quality-function: minimize a quality function