Title
An Integrated Inventory-Routing System for Multi-item Joint Replenishment with Limited Vehicle Capacity
Abstract
In this paper, we develop a mathematical programming approach for coordinating inventory and transportation decisions in an inbound commodity collection system. In particular, we consider a system that consists of a set of geographically dispersed suppliers that manufacture one or more non-identical items, and a central warehouse that stocks these items. The warehouse faces a constant and deterministic demand for the items from outside retailers. The items are collected by a fleet of vehicles that are dispatched from the central warehouse. The vehicles are capacitated, and must also satisfy a frequency constraint. Adopting a policy in which each vehicle always collects the same set of items, we formulate the inventory-routing problem of minimizing the long-run average inventory and transportation costs as a set partitioning problem. We employ a column generation approach to determine a lower bound on the total costs, and develop a branch-and-price algorithm that finds the optimal assignment of items to vehicles. We also propose greedy constructive heuristics, and develop a very large-scale neighborhood (VLSN) search algorithm to find near-optimal solutions for the problem. Computational tests are performed on a set of randomly generated problem instances.
Year
DOI
Venue
2005
10.1007/s10898-004-5908-0
J. Global Optimization
Keywords
Field
DocType
long-run average inventory,central warehouse,inventory-routing problem,mathematical programming approach,integrated inventory-routing system,very large-scale neighborhood search,column generation approach,search algorithm,partitioning problem,transportation,inventory-routing,branch-and-price algorithm,column generation,limited vehicle capacity,problem instance,multi-item joint replenishment,eco- nomic order quantity,multi-item inventory replenishment,inbound commodity collection system,mathematical programming,branch and price,satisfiability,lower bound,economic order quantity
Very large-scale neighborhood search,Mathematical optimization,Column generation,Search algorithm,Upper and lower bounds,Commodity,Economic order quantity,Constructive heuristic,Total cost,Mathematics
Journal
Volume
Issue
ISSN
32
1
0925-5001
Citations 
PageRank 
References 
24
1.43
17
Authors
4
Name
Order
Citations
PageRank
Sombat Sindhuchao1241.43
H. Edwin Romeijn276983.88
Elif Akçali3564.46
Rein Boondiskulchok4241.43