A New Technique for Estimating the Lower Bound of the Trust-Region Subproblem

• 作 者: Xinlong Luo
• 机 构: 不详
• 出 处: 应用数学(英文)
• 发表日期: 2011年4期
• 关键词: TRUST-REGION METHOD UNCONSTRAINED OPTIMIZATION TRUST-REGION Subproblem Trust-Reg

Trust-region methods are popular for nonlinear optimization problems. How to determine the predicted reduction of the trust-region subproblem is a key issue for trust-region methods. Powell gave an estimation of the lower bound of the trust-region subprob