{"action":"created","issue":{"url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/18","labels_url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/18/labels{/name}","comments_url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/18/comments","events_url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/18/events","html_url":"https://github.com/MOEAFramework/MOEAFramework/issues/18","id":116449439,"number":18,"title":"Inverted Generational Distance Fix","user":{"login":"dhadka","id":2496211,"avatar_url":"https://avatars.githubusercontent.com/u/2496211?v=3","gravatar_id":"","url":"https://api.github.com/users/dhadka","html_url":"https://github.com/dhadka","followers_url":"https://api.github.com/users/dhadka/followers","following_url":"https://api.github.com/users/dhadka/following{/other_user}","gists_url":"https://api.github.com/users/dhadka/gists{/gist_id}","starred_url":"https://api.github.com/users/dhadka/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dhadka/subscriptions","organizations_url":"https://api.github.com/users/dhadka/orgs","repos_url":"https://api.github.com/users/dhadka/repos","events_url":"https://api.github.com/users/dhadka/events{/privacy}","received_events_url":"https://api.github.com/users/dhadka/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-11-12T00:05:49Z","updated_at":"2015-11-12T01:07:28Z","closed_at":"2015-11-12T01:07:28Z","body":"Generational distance is typically computed by squaring the distances (this is referenced in Coello Coello's manual and Van Veldhuizen's thesis where they state the power is d=2).  The inverted generational distance (IGD) in the MOEA Framework (and JMetal) is also calculated with d=2.  However, it appears more popular to compute IGD without squaring.  This should be changed to remain consistent with the literature."},"comment":{"url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/comments/155965030","html_url":"https://github.com/MOEAFramework/MOEAFramework/issues/18#issuecomment-155965030","issue_url":"https://api.github.com/repos/MOEAFramework/MOEAFramework/issues/18","id":155965030,"user":{"login":"dhadka","id":2496211,"avatar_url":"https://avatars.githubusercontent.com/u/2496211?v=3","gravatar_id":"","url":"https://api.github.com/users/dhadka","html_url":"https://github.com/dhadka","followers_url":"https://api.github.com/users/dhadka/followers","following_url":"https://api.github.com/users/dhadka/following{/other_user}","gists_url":"https://api.github.com/users/dhadka/gists{/gist_id}","starred_url":"https://api.github.com/users/dhadka/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dhadka/subscriptions","organizations_url":"https://api.github.com/users/dhadka/orgs","repos_url":"https://api.github.com/users/dhadka/repos","events_url":"https://api.github.com/users/dhadka/events{/privacy}","received_events_url":"https://api.github.com/users/dhadka/received_events","type":"User","site_admin":false},"created_at":"2015-11-12T01:07:28Z","updated_at":"2015-11-12T01:07:28Z","body":"Fixed by cd734e0630484925313d543833050f873b3367a8"}}