Efficient ELM-Based Two Stages Query Processing Optimization for Big Data

Algorithm 3

Multiple queries.

(1)  for each query   do

(2)  Generate the classification of by E2E;

(3)  end for

(4)  Divide the queries into some subsets by query type;

(5)  for each subset do

(6)  Analyze and divide the sharing data;

(7)  Compute and query of the sharing data;

(8)  Calculate the simulate execution time;

(9)  Generate the local execution order of each subset by SJF;

(10) end for

(11)  Generate the global execution order by SJF;