Title
Two storage inventory model of a deteriorating item with variable demand under partial credit period
Abstract
In this paper, a two-warehouse inventory model for deteriorating item with stock and selling price dependent demand has been developed. Above a certain (fixed) ordered label, supplier provides full permissible delay in payment per order to attract more customers. But an interest is charged by the supplier if payment is made after the said delay period. The supplier also offers a partial permissible delay in payment even if the order quantity is less than the fixed ordered label. For display of goods, retailer has one warehouse of finite capacity at the heart of the market place and another warehouse of infinite capacity (that means capacity of second warehouse is sufficiently large) situated outside the market but near to first warehouse. Units are continuously transferred from second warehouse to first and sold from first warehouse. Combining the features of Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) a hybrid heuristic (named Particle Swarm-Genetic Algorithm (PSGA)) is developed and used to find solution of the proposed model. To test the efficiency of the proposed algorithm, models are also solved using another two established heuristic techniques and results are compared with those obtained using proposed PSGA. Here order quantity, refilling point at first warehouse and mark-up of selling price of fresh units are decision variables. Models are formulated for both crisp and fuzzy inventory parameters and illustrated with numerical examples.
Year
DOI
Venue
2013
10.1016/j.asoc.2012.07.028
Appl. Soft Comput.
Keywords
Field
DocType
particle swarm optimization,variable demand,infinite capacity,genetic algorithm,storage inventory model,deteriorating item,partial permissible delay,finite capacity,order quantity,partial credit period,proposed algorithm,full permissible delay,delay period
Particle swarm optimization,Situated,Decision variables,Mathematical optimization,Warehouse,Heuristic,Fuzzy logic,Payment,Genetic algorithm,Mathematics
Journal
Volume
Issue
ISSN
13
1
1568-4946
Citations 
PageRank 
References 
13
0.56
18
Authors
3
Name
Order
Citations
PageRank
Partha Guchhait1504.09
Manas Kumar Maiti223620.68
Manoranjan Maiti351447.77