This is a preview. Log in through your library . Abstract For square contingency tables with ordered categories, the conditional symmetry (CS) model is decomposed into the quasi-odds symmetry (QOS) ...

In this paper, we focus on a useful modeling concept that is frequently ignored while formulating discrete optimization problems. Very often, there exists a natural symmetry inherent in the problem ...

In general usage, symmetry most often refers to mirror or reflective symmetry; that is, a line (in 2-D) or plane (in 3-D) can be drawn through an object such that the two halves are mirror images of ...

It is very difficult to imagine the Universe as anything other than a perfectly balanced system, but now everything indicates that it could have a highly asymmetrical nature. This is a whole lot more ...