| Summary: | 碩士 === 元智大學 === 工業工程研究所 === 83 === The Vehicle Routing Problem（VRP）is a very important operation
within a multiechelon warehousing and chains stores system﹒The
problem of VRP is to transport aecessing stocks or pre-odering
from the warehouse to the retailer with a minimum
transportation cost（or minimum transportation distance）and
satisfying some restrictive constraints﹒ The problem that we
are dealing with is to add a new constraint which will retrict
the vehicle to pickup certain merchandise for the manufacture
before delivery﹒In other words,there are some precedent
constraints in these cities﹒The problem is very often
confronted by the dispatch of the warehouse﹒In this research,
we use neural network technique to formulate the problem,then
the constraint satisfactory approach also is proposed to solve
the problems﹒By combining the heuristic in TSP and technique
in the neural network，we will develop neural network technique
which will quickly find a feasible tour（satisfactory
precedence constraints）with the transportation cost does to
optimal﹒The solution quality will be verified by the
experimental tests and further application of this model will
be discussed﹒
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