Assignment problem: Difference between revisions

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Clean up the formal definition, remove links which were either 404, irrelevant, or way above the simple assignment problem.
Article is now FOLDC-free, remove the citation.
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An '''assignment problem''' (or '''linear assignment''') gives two sets, ''A'' and ''T'', of equal size, together with a cost function ''C'' which maps pairs (''a'',''t'') (where ''a'' lies in ''A'' and ''t'' in ''T'') to [[real number]]s.
 
The problem then is to find the [[bijection]] ''Pf'' from ''A'' to ''T'' such that the sum of ''C''(''a'',''Pf''(''a'')) across all ''a'' in ''A'' is minimized.
 
The problem is "linear" because the cost function to be optimized as well as all the constraints can be expressed as linear equations.
 
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''This article was originally based on material from [[FOLDOC]], used with [[Public Domain Resources/Foldoc license|permission]]. Update as needed.''