Novel Web Service Selection Model Based on Discrete Group Search

Table 1

Aggregated methods for global QoS attributes.

Method	Sequential	Loop	Choice	Parallel
Summation	^𝑛∑𝑖=1𝑞^𝑖	𝑝𝑞^𝑖	^𝑛∑𝑖=1𝑐^𝑖𝑞^𝑖	^𝑛∑𝑖=1𝑞^𝑖
Continued multiplication	∏^𝑛𝑖=1𝑞^𝑖	𝑞^𝑖	^𝑛∑𝑖=1𝑐^𝑖𝑞^𝑖	∏^𝑛𝑖=1𝑞^𝑖
Average	1𝑛^𝑛𝑖∑=1𝑞^𝑖	𝑞^𝑖	^𝑛∑𝑖=1𝑐^𝑖𝑞^𝑖	1𝑛^𝑛𝑖∑=1𝑞^𝑖