Inventory Control of Large Scale Multi-Item System with Minimum Order Quantity Constraint and Non-Stationary Demand

Inventory Control of Large Scale Multi-Item System with Minimum Order Quantity Constraint and Non-Stationary Demand
Author: Gaetan Deletoille
Publisher:
Total Pages: 0
Release: 2022
Genre:
ISBN:

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We consider a large scale multi-item periodic-review stochastic inventory system with Minimum Order Quantity (MOQ) requirements on the total order size of all items. The item demands are stochastic and non-stationary. The retailer must decide at each time period whether and how many of each item to order from the supplier. The goal is to maximize the reward generated by satisfying the end customers demands while minimizing the costs of holding unsold inventory. We introduce a parameterized heuristic, the w-policy, that relies on our detailed analysis of the problem.We demonstrate the scalability of this heuristic up to ten thousand items, which is unmatched in the literature on the non-stationary demand version of the MOQ problem. The results of our numerical study on large scale real world data sets exhibit the efficiency of the w-policy in these challenging settings. Moreover, our numerical study shows that the w-policy performs at least as well as the state-of-the-art method (S,T) on the simplified problem when the demand is considered stationary, while being more robust in a real supply chain environment.Our results therefore indicate that the w-policy is more robust, has a larger scope of applicability, and is significantly more scalable than state of the art methods for multi-item stochastic inventory control with MOQ requirements.

Optimization and Inventory Management

Optimization and Inventory Management
Author: Nita H. Shah
Publisher: Springer Nature
Total Pages: 470
Release: 2019-08-31
Genre: Business & Economics
ISBN: 9811396981

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This book discusses inventory models for determining optimal ordering policies using various optimization techniques, genetic algorithms, and data mining concepts. It also provides sensitivity analyses for the models’ robustness. It presents a collection of mathematical models that deal with real industry scenarios. All mathematical model solutions are provided with the help of various optimization techniques to determine optimal ordering policy. The book offers a range of perspectives on the implementation of optimization techniques, inflation, trade credit financing, fuzzy systems, human error, learning in production, inspection, green supply chains, closed supply chains, reworks, game theory approaches, genetic algorithms, and data mining, as well as research on big data applications for inventory management and control. Starting from deterministic inventory models, the book moves towards advanced inventory models. The content is divided into eight major sections: inventory control and management – inventory models with trade credit financing for imperfect quality items; environmental impact on ordering policies; impact of learning on the supply chain models; EOQ models considering warehousing; optimal ordering policies with data mining and PSO techniques; supply chain models in fuzzy environments; optimal production models for multi-items and multi-retailers; and a marketing model to understand buying behaviour. Given its scope, the book offers a valuable resource for practitioners, instructors, students and researchers alike. It also offers essential insights to help retailers/managers improve business functions and make more accurate and realistic decisions.

Inventory Management Demystified

Inventory Management Demystified
Author: A.D. Dear
Publisher: Springer Science & Business Media
Total Pages: 108
Release: 1990-02-28
Genre: Business & Economics
ISBN: 9780412377006

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Despite the widespread use of computer based inventory control systems, most companies are aware that they often cannot meet their customer demand, while still suspecting that their stock levels are higher than they should be.

Models for Multi-Item Inventory Systems with Constraints

Models for Multi-Item Inventory Systems with Constraints
Author: William Edward Daeschner (Jr)
Publisher:
Total Pages: 119
Release: 1975
Genre:
ISBN:

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Constrained multi-item inventory systems with stochastic demands are addressed. The concept of Bad Buys is introduced and their temporal development is studied through a model which links the financial and line-item inventory control subsystems. The interaction of budget constraints and control policies having stochastic resource requirement are examined using a queueing model. Some line-item control systems in current use are shown to be incompatible with budget constrained financial control mechanisms. A model and solution procedure are furnished to guide the line-item inventory control subsystem in exercising adaptive control of a multi-item inventory with stochastic demands and fixed resources provided in successive fiscal periods. An interactive FORTRAN computer program is furnished which exploits the Generalized Lagrange Multiplier procedure in obtaining optimal or near-optimal integer solutions to a class of non-linear integer programming problems.

Scientific Inventory Management Simplified

Scientific Inventory Management Simplified
Author: United States. Federal Supply Service
Publisher:
Total Pages: 72
Release: 1957
Genre: Government purchasing
ISBN:

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Operational Research for Emergency Planning in Healthcare: Volume 1

Operational Research for Emergency Planning in Healthcare: Volume 1
Author: Navonil Mustafee
Publisher: Springer
Total Pages: 262
Release: 2016-01-26
Genre: Computers
ISBN: 1137535695

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This book presents a collection of studies that have applied analytical methods to improve preparedness, planning, and a faster response to A&E and public health emergencies like epidemic and disease outbreak. It explores the application of quantitative Operational Research techniques such as Mathematical Modelling and Optimization, Maximum Likelihood Estimation, Multiple-Criteria Decision Analysis, Discrete-event Simulation, Data Mining, and Bayesian Decision Models. These techniques have been used for better management of emergency care, including first responders, ambulance services, A&E departments, and mass immunisation centres. This volume focuses on planning at the operational level whereas volume 2 focuses mainly on planning at the strategic level. The OR Essentials series presents a unique cross-section of high quality research work fundamental to understanding contemporary issues and research across a range of Operational Research (OR) topics. It brings together some of the best research papers from the highly respected journals of the Operational Research Society, also published by Palgrave Macmillan.

Optimal Inventory Control and Management Techniques

Optimal Inventory Control and Management Techniques
Author: Mittal, Mandeep
Publisher: IGI Global
Total Pages: 424
Release: 2016-03-29
Genre: Business & Economics
ISBN: 1466698896

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Stock management and control is a critical element to the success and overall financial well-being of an organization. Through the application of innovative practices and technology, businesses are now able to effectively monitor their operations and manage their inventory by evaluating sales patterns and customer preferences. Optimal Inventory Control and Management Techniques explores emergent research in stock management and product control within organizations. Featuring diverse perspectives on the implementation of various optimization techniques, genetic algorithms, and datamining concepts, as well as research on big data applications for inventory management, this publication is a comprehensive reference source for practitioners, educators, and researchers in the fields of logistics, operations management, and retail management.

Inventory Control

Inventory Control
Author: Sven Axsäter
Publisher: Springer Science & Business Media
Total Pages: 210
Release: 2013-04-17
Genre: Business & Economics
ISBN: 1475756062

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Modem information technology has created new possibilities for more sophisticated and efficient control of supply chains. Most organizations can reduce their material flow costs substantially. Inventory control techniques are very important components in this development process. A thorough understanding of relevant inventory models is a prerequisite for successful implementation. I hope that this book will be a useful tool in acquiring such an understanding. Nearly ten years ago I wrote a Swedish book on inventory control. This previous book has been used in courses in production and inventory control at several Swed ish engineering schools and has also been appreciated by many practitioners in the field. Positive reactions from many readers have occasionally made me contemplate writing a new book in English on the same subject. Encouraging support of this idea from the Kluwer Editors Fred Hillier and Gary Folven finally convinced me to go ahead with the project. The result is this new book, which in many ways differs from its Swedish prede cessor. Some differences are due to recent developments in inventory control. Fur thermore, this new book is in a sense more theoretical. In particular, it is to a larger extent focused on creating a good basic understanding of different possible ap proaches when analyzing inventory models.

Continuous-Review Policies for a Multi-Echelon Inventory Problem With Stochastic Demand (Classic Reprint)

Continuous-Review Policies for a Multi-Echelon Inventory Problem With Stochastic Demand (Classic Reprint)
Author: Marc de Bodt
Publisher:
Total Pages: 58
Release: 2015-08-05
Genre: Business & Economics
ISBN: 9781332256280

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Excerpt from Continuous-Review Policies for a Multi-Echelon Inventory Problem With Stochastic Demand Continuous-Review Policies for a Multi-Echelon Inventory Problem With Stochastic Demand was written by Marc de Bodt and Stephen C. Graves in 1982. This is a 58 page book, containing 5607 words and 5 pictures. Search Inside is enabled for this title. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.