Journal
FOUNDATIONS OF INTELLIGENT SYSTEMS (ISKE 2013)
Volume 277, Issue -, Pages 731-743Publisher
SPRINGER-VERLAG BERLIN
DOI: 10.1007/978-3-642-54924-3_69
Keywords
Conditional value at risk; Credibility theory; Chance-constrained optimization; Project portfolio; Genetic algorithm
Funding
- Natural Science Foundation of China [71240015]
- Natural Science Foundation of Guangdong Province [S2011010001337]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong [2012WYM 0116]
- MOE Youth Foundation Project of Humanities and Social Sciences at Universities in China [13YJC630123]
- Fundamental Research Funds for the Central Universities [2012ZM0031]
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This paper discusses a fuzzy chance-constrained project portfolio selection problem based on credibility theory. Risk of project portfolio is measured using conditional value at risk (CVaR) approach. The proposed model maximizes the expected fuzzy net present value (FNPV) subject to credibilistic chance constraint (CCC) of CVaR. We transform the chance-constrained model into deterministic model when the investment cost and return are characterized by triangular and trapezoidal fuzzy numbers. An improved genetic algorithm (GA) is designed to solve this problem. Two numerical examples with different types of membership function are also given to illustrate the modeling idea of the paper and to demonstrate the effectiveness of the proposed algorithm.
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