FACTOID # 100: The United States puts 0.7 % of its population in Prison - a vastly higher percentage than any other nation.
 
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Encyclopedia > Local optimum

local optimum is a term in Applied mathematics and Computer Science. A local optimum of a combinatorial optimization problem is a solution that is optimal within a neighboring set of solutions. This is in contrast to a global optimum, which is the optimal solution of the whole solution space.


The locality of the optimum is dependent on the neighborhood structure as defined by the meta heuristic that is used for optimizing the solution.


Many 'solutions' to such optimization problems will find a local optimum, and thus work only if the problem only has one - global - optimum.


  Results from FactBites:
 
Structure of Intelligence: Chapter 2 - Optimization (3180 words)
A local optimum is only better than those things which are very similar to it.
The first key concept is that the search for an optimum is to be conducted on a finite number of "levels", each one determined by a certain characteristic distance.
Once he finds a block-level optimum, he should then take a rough survey of the town in which the block sits, and make a guess as to which areas will be best (say by the Monte Carlo method).
  More results at FactBites »


 

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