Online Knowledge-Based Model for Big Data Topic Extraction

Algorithm 3

Refine rules.

RefineRules ( , , topics, , Rules)

() procedure RefineRules (, , topics, , Rules)

()  Rules′ relevantRules (, knowledge-base) // set of relevant rules

()  for ( : all Rules) do

()     if (Rules′ contains ) do

()      nPMI()            // add to cumulative confidence

()     ρ +1              // Rules utility increased by 1

()     end if

()  end for

() end procedure