The determination of boundaries among topic segments

In order to get the information about boundaries of topic segments, we need simplify the method. That is:

1. if the segment currently concerned is a dominated/dominant pattern, all of points in the segment can not be taken as the starting point of other segments.
2. if there are not only one points in the segment line, the boundary might be the starting point when there are no any segments before it. Or else, the point next to the starting point of the segment is taken as the boundary.
3. if there are only two nodes in the segment which are end points of the line. The peak point would be a boundary which is also the single point segment. The point next to the peak would be the boundary for the following topic segment.