Effective Application of Improved Profit-Mining Algorithm for the Interday Trading Model

Pseudocode 2

The pseudocode of genSP.

(1) genSP

(2) Parameters:

(3)  BP, prefix       : Pattern

(4)  index, interval      : int

(5) Begin

(6)  if interval > maxspan then

(7)   return

(8)  end if

(9)  if index < |oneItemList| then

(10)   for 𝑖 = index to |oneItemList|−1

(11)    SP = oneItemList[𝑖]

(12)    SP = shift(SP, interval)

(13)    SP = join(prefix, SP)

(14)

(15)    if sup(SP) ≥ minsup

(16)     if BP ≤ SP // Prevent From Duplication

(17)      ruleset = ruleGenerator(BP, SP)

(18)      for each 𝑟 in ruleset

(19)       result = simulate(𝑟)

(20)       if result satisfy thresholds

(21)        output(𝑟, result)

(22)       end if

(23)      end for

(24)      genSP(BP, SP, 𝑖+1, interval )

(25)     end if

(26)    end if

(27)   end for

(28)  end if

(29)  if prefix.length > 0 then

(30)   genSP(BP, prefix, 0, interval + 1)

(31)  end if