Polynomial time algorithms are presented for inverting permutation tests. The one-sample permutation test is inverted to make confidence statements about a location parameter, and the two-sample ...

A permutation is the way a set can be arranged, and where the order of arrangement matters. There are three different types of permutations, including one without repetition and one with repetition.

In this paper I look at things from a rather different perspective: by investigating the significance of permutation symmetry. I consider how various philosophical positions link up to the physical ...

We develop a new index investing strategy that can achieve higher return with lower volatility than original index, while its behavior is still similar to that of the original index. The idea is to ...