3. 1. Introduction
- The Chinese Postman Problem was first
posed by a Chinese mathematician in
1962. It involved trying to calculate how a
postman could best choose his route so as
to minimize his time.
• This is the problem that he tried to solve:
• How could a postman visit every letter on
the graph in the shortest possible time?
6. The Route of the Postman
- Postman Tour or Route Inspection Problem, is a famous problem in Graph
Theory: The postman's job is to deliver all of the town's mail using the
shortest route possible. In order to do so, he (or she) must pass each street
once and then return to the origin.
-We model this problem using a directed
graph. Edges and nodes represent streets
and intersections, respectively. The length
of a street is represented by the weight of
the corresponding edge. By using directed
edges, it's possible to also account for one-
way-streets etc in the graph