1. A Branch-and-Bound Algorithm Embedded with DCA for DC Programming.
- Author
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Meihua Wang, Fengmin Xu, and Chengxian Xu
- Subjects
- *
ALGORITHMS , *CONVEX functions , *EMBEDDINGS (Mathematics) , *STOCHASTIC convergence , *ROBUST control - Abstract
The special importance of Difference of Convex (DC) functions programming has been recognized in recent studies on nonconvex optimization problems. In this work, a class of DC programming derived from the portfolio selection problems is studied. The most popular method applied to solve the problem is the Branch-and-Bound (B&B) algorithm. However, "the curse of dimensionality" will affect the performance of the B&B algorithm. DC Algorithm (DCA) is an efficient method to get a local optimal solution. It has been applied to many practical problems, especially for large-scale problems. A B&B-DCA algorithm is proposed by embedding DCA into the B&B algorithms, the new algorithm improves the computational performance and obtains a global optimal solution. Computational results show that the proposed B&B-DCA algorithm has the superiority of the branch number and computational time than general B&B. The nice features of DCA (inexpensiveness, reliability, robustness, globality of computed solutions, etc.) provide crucial support to the combined B&B-DCA for accelerating the convergence of B&B. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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