Criss-cross algorithm

In its second phase, the simplex algorithm crawls along the edges of the polytope until it finally reaches an optimum vertex. The criss-cross algorithm considers bases that are not associated with vertices, so that some iterates can be in the interior of the feasible region, like interior-point algorithms; the criss-cross algorithm can also have infeasible iterates outside the feasible region.

The worst-case computational complexity of Khachiyan's ellipsoidal algorithm is a polynomial. The criss-cross algorithm has exponential complexity.

In mathematical optimization, the criss-cross algorithm is any of a family of algorithms for linear programming. Variants of the criss-cross algorithm also solve more general problems with linear inequality constraints and nonlinear objective functions; there are criss-cross algorithms for linear-fractional programming problems, quadratic-programming problems, and linear complementarity problems.

单词	Criss cross method
释义	Criss cross method 英语百科 Criss-cross algorithm In mathematical optimization, the criss-cross algorithm is any of a family of algorithms for linear programming. Variants of the criss-cross algorithm also solve more general problems with linear inequality constraints and nonlinear objective functions; there are criss-cross algorithms for linear-fractional programming problems, quadratic-programming problems, and linear complementarity problems.
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Criss cross method

Criss-cross algorithm