Project Portfolio Selection Considering the Fuzzy Chance Constraint of Water Environmental Restoration

The water environment restoration project portfolio (WERP) selection is discussed in this paper. By complying with the analysis of project’s multidimensional property and operation mode, paper develops chance constraint management WERP from perspectives public service enterprise operation. In addition, multi-objective mixed integer linear programming model constructed by combining expectation method fuzzy method. results demonstrate that: (1) Our proposed successfully circumvents occurrence local objective optimization within a specific confidence interval, thereby achieving balance between economic objectives; (2) including constraints our significantly diminishes risk exceeding capacity, ensuring effectiveness adopting market-based approach. However, further examination impact various sub-projects necessary, along integration novel evolutionary algorithms to enhance efficiency model.