In assignment 3 dierence c1 c2 values are given for

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: convergence. –  Less connected: par0cles have more diversity. •  Clustering –  Networks that are sparsely connected with a large amount of clustering: informa0on is shared with a slow flow between clusters. •  Average shortest distance –  Low average shortest distance means informa0on can flow from one node to another in a small number of steps. 4 2/20/14 Commonly used Structures Velocity Models •  Kennedy iden0fies 4 types of velocity models based on c1 and c2 . Full Model (c1, c2 > 0) Cogni0on Only Model (c1 > 0 and c2 = 0), Social Only Model (c1 = 0 and c2 > 0) Selfless Model: (c1 = 0, c2 > 0, and (gbest/lbest ≠ par0cle itself). •  Assignment 3 uses full model. •  •  •  •  star ring Accelera0on coefficients •  The accelera0on coefficient c1 and c2, together with r1 and r2, controls the stochas0c influence of the cogni0ve and social components on the overall velocity of a par0cle. •  c1 > 0, c2 =0, all par0cles are independent hill ­climbers toward pbest. •  c1 = 0,...
View Full Document

This document was uploaded on 02/28/2014 for the course CS 6776 at Memorial University.

Ask a homework question - tutors are online