42. The method of claim 40 wherein: (a) said third intermediate utility measure is a combination of a second similarity measure for said first document element and said second similarity measure for said second document element and a first normalization constant; and (b) said fourth intermediate utility measure is a combination of said second similarity measure for said second document element and said second similarity measure for said first document element and a second normalization constant.
42. The method of claim 40 wherein: (a) said third intermediate utility measure is a combination of a second similarity measure for said first document element and said second similarity measure for said second document element and a first normalization constant; and (b) said fourth intermediate utility measure is a combination of said second similarity measure for said second document element and said second similarity measure for said first document element and a second normalization constant. 44. The method of claim 42 wherein said second similarity measure is an SFC weight vector.