Definition of "regularization"

regularization

noun
countable and uncountable, plural regularizations
1. The act of making regular, of regularizing.
  Quotations
  The history of the regularization of rivers, both in Russia and in Western Europe, hardly shows us anything but failures.
  1881, S. Janicki, A. Pasqueau, L. Jacquet, translated by William Emery Merrill, Improvement of Non-tidal Rivers: Memoirs‎, Washington: U.S. Government Printing Office, page 17
2. (mathematics, computer science, finance) a process that simplifies results, often used to obtain results for ill-posed problems or to prevent overfitting.
  Quotations
  A large regularization parameter may over-smoothen the solution, while a small regularization parameter may lose the ability to stabilize the solution.
  2020 March 30, Ratinan Boonklurb, Ampol Duangpan, Phansphitcha Gugaew, “Numerical Solution of Direct and Inverse Problems for Time-Dependent Volterra Integro-Differential Equation Using Finite Integration Method with Shifted Chebyshev Polynomials”, in Symmetry‎, volume 12, number 4