journal6 ›› 2009, Vol. 30 ›› Issue (6): 32-34.

• Computer • Previous Articles     Next Articles

A Nonmonotone Adaptive-BFGS Trust-Region Method


  1. (Mathematics and Information Science,He’nan Polytechnic University,Jiaozuo 454003,He’nan China)
  • Online:2009-11-25 Published:2012-04-20

Abstract: A nonmonotone adaptive-BFGS trust-region method for unconstrained optimization is presented.Not only the trust-region radius in this method is automatically determined by using first order information,but combining with the advantage of the BFGS algorithm.Under certain conditions,the global and superlinear convergences of the algorithm are proved.

Key words: unconstrained optimization, nonmonotone algorithm, adaptive trust algorithm, BFGS update, global convergence

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