Edited by author 10-12-2004 01:58 PM
I agree with the view of Robin that typically we are not interested in whole range of k. How do we choose w(k) which reflects our prior preference about some particular range of k, considering that even if w(k) is uniform, more emphasis is on smaller values of k.

The present reordering scheme may not remain optimal for arbitrary choices of w(k) (except the example mentioned in paper), so it would be interesting to explore the family of w(k) for which efficient alternatives could be devised.