Superior Efficient Points on a Network and Location Problems
网络中的优势有效点与选址问题

On the problem of location on network,the concept of "efficient points on a network" was first introduced by P.Hanson.In this paper we try to define superior-efficient points in set of efficient points.In general.their range is more narrow than that of efficient points.Also they have more outstanding characteristic of efficient points ,thus they can provide exact information for decider .In the case of tree network , some properties of superior efficient points will be discussed and an algorithm will be given in this paper.