  Nearly thirty years ago the possibility of anomalous weak amplfication (AWA)
was revealed by Aharonov, Albert and Vaidman [1]. Recently two papers presents
two AWA schemes which are beyond the traditional proposal given by them [14,
15]. At the first glance the two papers seems very different. Ref. [14]
discusses the thermal light cross-Kerr effect and finds only postselection can
give the amplification effect without interference of the postselected meter
states, and Ref. [15] shows that only weak interaction itself can give the
amplification effect without postselection. Here the relationships between the
two papers are pointed out and a generalized framework for AWA via
postselecting a pair of orthogonal final states is shown.
