An Expert Fitness Diagnosis System Based on Elastic Cloud Computing

Algorithm 1

Elastic allocation.

Input: 𝑄_𝑖, 𝑈, 𝐶, 𝑤, 𝐼, Thre_i, Thre_d

Output: Predicted computational capacity in 𝑡_𝑖+1

Method:

(1) Calculate the 𝜆_𝑖 in (2)

(2) Set 𝑖←1

(3) while  𝑖≤𝐼

(4)  if  𝑃(𝑋>(𝑈+𝑖)×𝐶)≥Thre_𝑖  //Calculated by (1)

(5)   𝑈←𝑈+𝑖

(6)  else if 𝑃(𝑋<(𝑈−𝑖)×𝐶)≥Thre_𝑑 //Calculated by (1)

(7)   𝑈←𝑈−𝑖

(8)  𝑖←𝑖+1

(9) End

(10) return 𝑈×𝐶