49. The method of claim 47 wherein said first similarity measure is a word weight vector.
47. The method of claim 45 wherein: (a) said first intermediate utility measure is a combination of a first similarity measure for said first document element, x, and said first similarity measure for said second document element Y; and (b) said second intermediate utility measure is a combination of said first similarity measure for said first document element, X, and said first similarity measure for said second document element, Y.