ارزیابی افزایشی از ویژگی های مرتبه بالاتر

Incrementality for attribute evaluation is achieved by maintaining additional bookkeeping about which attribute values have changed. We show benchmarks for the implementation technique dealing with higher-order attributes. The benchmarks indicate that the bookkeeping overhead in our prototype implementation comes with a serious hit on performance, further investigation into the reasons and possible remedies for this falls outside the scope of this paper.