A Method Based on Rough Set for Decision Making

To make multiattribute decision with incomplete information, the paper proposed a method based on rough set. The paper defined the concepst of breaking points, scan vector and the addition of scan vector to recover the incomplete information system through rough set. Then introduced OWA (ordered weighted averaging) operators to calculate the aggregation value of each project. Finally, obtained the qualitatived decision making information.The illustration and experiments were implemented in VC++6.0, which results indicate that the method is effective and efficient.