Combining rough sets and fuzzy soft sets,we propose an algorithmto obtain the optimal decision program. In this algorithm, firstly,\naccording to fuzzy soft sets, we build up information systems; secondly, we compute the significance of each parameter according to\nrough set theory; thirdly, combining subjective bias, we give an algorithm to obtain the comprehensive weight of each parameter; at\nlast, we put forward a method to choose the optimal program. Example shows that the optimal algorithm is effective and rational.
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