TRON is a trust region Newton method for the solution of large bound-constrained optimization problems. TRON uses a gradient projection method to generate a Cauchy step, a preconditioned conjugate gradient method with an incomplete Cholesky factorization to generate a direction, and a projected search to compute the step. The use of projected searches, in particular, allows TRON to examine faces of the feasible set by generating a small number of minor iterates, even for problems with a large number of variables. As a result TRON is remarkably efficient at solving large bound-constrained optimization problems.

References in zbMATH (referenced in 106 articles , 1 standard article )

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  4. Yuan, Gonglin; Wei, Zengxin; Zhang, Maojun: An active-set projected trust region algorithm for box constrained optimization problems (2015)
  5. Cheng, Wanyou; Chen, Zixin; Li, Dong-hui: An active set truncated Newton method for large-scale bound constrained optimization (2014)
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  9. Peng, Jing-Jing; Peng, Zhen-Yun: Least squares symmetric solutions to a matrix equation with a matrix inequality constraint (2014)
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  12. Cheng, Wanyou; Li, Donghui: An active set modified Polak-Ribiére-Polyak method for large-scale nonlinear bound constrained optimization (2012)
  13. Haber, Eldad; Magnant, Zhuojun; Lucero, Christian; Tenorio, Luis: Numerical methods for (A)-optimal designs with a sparsity constraint for ill-posed inverse problems (2012)
  14. Lantoine, Gregory; Russell, Ryan P.: A hybrid differential dynamic programming algorithm for constrained optimal control problems. I: Theory (2012)
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  19. Sun, Li; He, Guoping; Wang, Yongli; Zhou, Changyin: An accurate active set Newton algorithm for large scale bound constrained optimization. (2011)
  20. Xiao, Yun-Hai; Hu, Qing-Jie; Wei, Zengxin: Modified active set projected spectral gradient method for bound constrained optimization (2011)