Algorithm 1 Pseudocode for H2O

$\mathrm{Input}:\mathrm{PS}$$,{\mathrm{Max}}_{\mathrm{ite}}$ Output: Optimal Threshold

Begin $\mathrm{Initialize}\to$$\mathrm{hawks}\mathrm{population}{\mathbb{X}}_{\mathrm{i}}$$(\mathrm{C}.\mathrm{U}{.}_{\mathrm{i}}$); While (Stopping Condition Not Met) do Compute → fitness function $\mathrm{For}({\mathbb{X}}_{\mathrm{i}}\in {\mathbb{X}}_{\mathrm{PS}}$)do $\mathrm{Update}\to {\mathrm{E}}_{\mathrm{o}}$$\mathrm{and}\mathfrak{F};$ $\mathrm{Update}\to {\mathrm{E}}_{\mathrm{p}}$ using Equation (8); End For $\mathrm{If}({\mathrm{E}}_{\mathrm{p}}\ge 1$)Then Update position using Equation (9); End If $\mathrm{If}({\mathrm{E}}_{\mathrm{p}}<1$)Then $\mathrm{If}(𝓻\ge 0.5$$\&\&\left|{\mathrm{E}}_{\mathrm{p}}\right|\ge 0.5$) Update → position using Equation (10); $\mathrm{Else}\mathrm{If}(𝓻\ge 0.5$$\&\&\left|{\mathrm{E}}_{\mathrm{p}}\right|<0.5$)Then Update → position using Equation (11); $\mathrm{Else}\mathrm{If}(𝓻<0.5$$\&\&\left|{\mathrm{E}}_{\mathrm{p}}\right|\ge 0.5$)Then Update → position using Equation (12); $\mathrm{Else}\mathrm{If}(𝓻<0.5$$\&\&\left|{\mathrm{E}}_{\mathrm{p}}\right|<0.5$)Then Update → position using Equation (13); End If End If End While End