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Cuckoo Search

The Cuckoo Search is one of the Search Method options in Slide3 for locating critical slip surfaces.

The Cuckoo Search is a metaheuristic search method in which randomness is introduced in some steps of the algorithm.

To enable a Cuckoo Search:

  1. In the Slip Surface Options dialog, set the Search Method = Cuckoo Search.
  2. Set the Cuckoo Search Options (Max Iterations and Number of Nests).

The Cuckoo Search requires no user defined search objects, the algorithm will run automatically when you select Compute.

Cuckoo Search Method

  • Cuckoo Search can use either spherical or ellipsoidal surfaces
  • Search starts with a random population of "n" failure surfaces (each surface is assigned to a nest).
  • For each nest, a new random surface based on its current surface is generated
  • These new surfaces are compared with the solution in a random nest, if they have a lower factor of safety, they will replace the solution in that nest
  • A small percent of the worst solutions in the ‘n’ nests will be thrown away and replaced by completely random new solutions
  • This process is repeated for a finite number of iterations

Schematic illustration of Cuckoo Search algorithm

Schematic Illustration of Cuckoo Search Algorithm

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