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  2. Bin packing problem - Wikipedia

    en.wikipedia.org/wiki/Bin_packing_problem

    The new Improved Bin Completion algorithm is shown to be up to five orders of magnitude faster than Bin Completion on non-trivial problems with 100 items, and outperforms the BCP (branch-and-cut-and-price) algorithm by Belov and Scheithauer on problems that have fewer than 20 bins as the optimal solution.

  3. Transshipment problem - Wikipedia

    en.wikipedia.org/wiki/Transshipment_problem

    The solution of the time-minimizing transshipment problem is the joint solution outcome of these two phases. Phase 1. Since costs are independent from the shipped amount, in each individual problem one can normalize the shipped quantity to 1. The problem now is simplified to an assignment problem from i to m+j.

  4. Fermi problem - Wikipedia

    en.wikipedia.org/wiki/Fermi_problem

    In physics or engineering education, a Fermi problem (or Fermi quiz, Fermi question, Fermi estimate), also known as a order-of-magnitude problem (or order-of-magnitude estimate, order estimation), is an estimation problem designed to teach dimensional analysis or approximation of extreme scientific calculations.

  5. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    An example of the second case is the decidability of the first-order theory of the real numbers, a problem of pure mathematics that was proved true by Alfred Tarski, with an algorithm that is impossible to implement because of a computational complexity that is much too high. [126]

  6. Sample maximum and minimum - Wikipedia

    en.wikipedia.org/wiki/Sample_maximum_and_minimum

    The sample maximum and minimum are the least robust statistics: they are maximally sensitive to outliers.. This can either be an advantage or a drawback: if extreme values are real (not measurement errors), and of real consequence, as in applications of extreme value theory such as building dikes or financial loss, then outliers (as reflected in sample extrema) are important.

  7. Pigeonhole principle - Wikipedia

    en.wikipedia.org/wiki/Pigeonhole_principle

    Pigeon-hole messageboxes at Stanford University. Dirichlet published his works in both French and German, using either the German Schubfach or the French tiroir.The strict original meaning of these terms corresponds to the English drawer, that is, an open-topped box that can be slid in and out of the cabinet that contains it.

  8. Quantum optimization algorithms - Wikipedia

    en.wikipedia.org/wiki/Quantum_optimization...

    For example, the bit string 0101 represents a cover consisting of the second and fourth vertex in a graph with four vertices. Sample graph to illustrate the minimum vertex cover problem. Consider the graph given in the figure. It has four vertices and there are two minimum vertex cover for this graph: vertices 0 and 2, and the vertices 1 and 2.

  9. Least squares - Wikipedia

    en.wikipedia.org/wiki/Least_squares

    The result of fitting a set of data points with a quadratic function Conic fitting a set of points using least-squares approximation. The method of least squares is a parameter estimation method in regression analysis based on minimizing the sum of the squares of the residuals (a residual being the difference between an observed value and the fitted value provided by a model) made in the ...