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Author : B. Heemsbergen
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (973 download)
Download or read book Single Level Discrete Demand Lot-sizing Heuristics written by B. Heemsbergen and published by . This book was released on 1985 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ian M. Langella
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (765 download)
Download or read book Heuristics for Demand written by Ian M. Langella and published by . This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ghaith Rabadi
Publisher : Springer
ISBN 13 : 3319260243
Total Pages : 271 pages
Book Rating : 4.3/5 (192 download)
Download or read book Heuristics, Metaheuristics and Approximate Methods in Planning and Scheduling written by Ghaith Rabadi and published by Springer. This book was released on 2016-01-27 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scope of this book is limited to heuristics, metaheuristics, and approximate methods and algorithms as applied to planning and scheduling problems. While it is not possible to give a comprehensive treatment of this topic in one book, the aim of this work is to provide the reader with a diverse set of planning and scheduling problems and different heuristic approaches to solve them. The problems range from traditional single stage and parallel machine problems to more modern settings such as robotic cells and flexible job shop networks. Furthermore, some chapters deal with deterministic problems while some others treat stochastic versions of the problems. Unlike most of the literature that deals with planning and scheduling problems in the manufacturing and production environments, in this book the environments were extended to nontraditional applications such as spatial scheduling (optimizing space over time), runway scheduling, and surgical scheduling. The solution methods used in the different chapters of the book also spread from well-established heuristics and metaheuristics such as Genetic Algorithms and Ant Colony Optimization to more recent ones such as Meta-RaPS.
Author : Fayez Fouad Boctor
Publisher : Québec : Faculté des sciences de l'administration de l'Université Laval, Direction de la recherche
ISBN 13 : 9782895241997
Total Pages : 23 pages
Book Rating : 4.2/5 (419 download)
Download or read book Heuristics for the N-product, M-stage, Economic Lot Sizing and Scheduling Problem with Dynamic Demand written by Fayez Fouad Boctor and published by Québec : Faculté des sciences de l'administration de l'Université Laval, Direction de la recherche. This book was released on 2004 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carlos Andre Reis Pinheiro
Publisher : John Wiley & Sons
ISBN 13 : 1118347609
Total Pages : 256 pages
Book Rating : 4.1/5 (183 download)
Download or read book Heuristics in Analytics written by Carlos Andre Reis Pinheiro and published by John Wiley & Sons. This book was released on 2014-03-03 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Employ heuristic adjustments for truly accurate analysis Heuristics in Analytics presents an approach to analysis that accounts for the randomness of business and the competitive marketplace, creating a model that more accurately reflects the scenario at hand. With an emphasis on the importance of proper analytical tools, the book describes the analytical process from exploratory analysis through model developments, to deployments and possible outcomes. Beginning with an introduction to heuristic concepts, readers will find heuristics applied to statistics and probability, mathematics, stochastic, and artificial intelligence models, ending with the knowledge applications that solve business problems. Case studies illustrate the everyday application and implication of the techniques presented, while the heuristic approach is integrated into analytical modeling, graph analysis, text analytics, and more. Robust analytics has become crucial in the corporate environment, and randomness plays an enormous role in business and the competitive marketplace. Failing to account for randomness can steer a model in an entirely wrong direction, negatively affecting the final outcome and potentially devastating the bottom line. Heuristics in Analytics describes how the heuristic characteristics of analysis can be overcome with problem design, math and statistics, helping readers to: Realize just how random the world is, and how unplanned events can affect analysis Integrate heuristic and analytical approaches to modeling and problem solving Discover how graph analysis is applied in real-world scenarios around the globe Apply analytical knowledge to customer behavior, insolvency prevention, fraud detection, and more Understand how text analytics can be applied to increase the business knowledge Every single factor, no matter how large or how small, must be taken into account when modeling a scenario or event—even the unknowns. The presence or absence of even a single detail can dramatically alter eventual outcomes. From raw data to final report, Heuristics in Analytics contains the information analysts need to improve accuracy, and ultimately, predictive, and descriptive power.
Author : Xiaobo Li
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Optimal Policies and Heuristics To Match Supply With Demand For Online Retailing written by Xiaobo Li and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Problem definition: We consider an online retailer selling multiple products to multiple zones over a single period. The retailer orders the products from a single supplier and stores them at multiple warehouses. At the start of the selling period, the retailer determines the order quantities of the products and their storage quantities at each warehouse subject to its capacity constraint. At the end of the period, after knowing the demands, the retailer determines the retrieval quantities from each warehouse to fulfill the demands. The retailer's objective is to maximize her expected profit. Methodology/results: For the single-zone case, we solve the problem optimally. The optimal retrieval policy is a greedy policy. We design a polynomial-time algorithm to determine the optimal storage policy, which preserves a nested property: Among all non-empty warehouses, a smaller-index warehouse contains all the products stored in a larger-index warehouse. The optimal ordering policy is a newsvendor-type policy. The problem becomes intractable analytically if there are multiple zones and we propose an efficient heuristic to solve it. This heuristic involves a non-trivial hybrid approximation of the second-stage expected profit. The heuristic is data driven, which uses demand samples as inputs to solve the problem without knowing the true demand distributions. Our numerical experiments suggest that this heuristic achieves a larger profit in a much shorter time compared to state-of-the-art approaches. Managerial implications: The advantage of our heuristic becomes more obvious as the tail of the demand distribution becomes fatter or as the problem size becomes larger, clearly showing the heuristic's efficiency. A case study based on data from a major fashion online retailer in Asia further confirms the superiority of the heuristic. With flexible fulfillment, our heuristic improves the efficiency by 28% on average compared to a dedicated policy adopted by the retailer.
Author : B. Heemsbergen
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (973 download)
Download or read book Single Level Discrete Demand Lot-sizing Heuristics written by B. Heemsbergen and published by . This book was released on 1985 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Groner
Publisher : Routledge
ISBN 13 : 1317838491
Total Pages : 431 pages
Book Rating : 4.3/5 (178 download)
Download or read book Methods of Heuristics written by R. Groner and published by Routledge. This book was released on 2014-07-10 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume constitutes the edited proceedings of an interdisciplinary symposium on Methods of Heuristics, which was held at the University of Bern, Switzerland, from September 15 to 19, 1980. In organizing the symposium, the editors of the present volume were able to invite specialists from psychology, computer science, and mathematics. From their own perspective they made contributions to the central questions of the conference: What are heuristics, the methods and rules guiding discovery and problem solving in a variety of different fields? How did they develop in individual human beings and in the history of science? Is it possible to arrive at a commonly accepted definition of heuristics as the field unifying all these efforts, and, if yes, what are its basic characteristics?
Author : B. L. Heemsbergen
Publisher :
ISBN 13 :
Total Pages : 648 pages
Book Rating : 4.:/5 (116 download)
Download or read book An Evaluation of Twelve Single-level Discrete-demand Lot-sizing Heuristics written by B. L. Heemsbergen and published by . This book was released on 1984 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arunachalam Narayanan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (69 download)
Download or read book Improved Formulations, Heuristics and Metaheuristics for the Dynamic Demand Coordinated Lot-sizing Problem written by Arunachalam Narayanan and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coordinated lot sizing problems, which assume a joint setup is shared by a product family, are commonly encountered in supply chain contexts. Total system costs include a joint set-up charge each time period any item in the product family is replenished, an item set-up cost for each item replenished in each time period, and inventory holding costs. Silver (1979) and subsequent researchers note the occurrence of coordinated replenishment problems within manufacturing, procurement, and transportation contexts. Due to their mathematical complexity and importance in industry, coordinated lot-size problems are frequently studied in the operations management literature. In this research, we address both uncapacitated and capacitated variants of the problem. For each variant we propose new problem formulations, one or more construction heuristics, and a simulated annealing metaheuristic (SAM). We first propose new tight mathematical formulations for the uncapacitated problem and document their improved computational efficiency over earlier models. We then develop two forward-pass heuristics, a two-phase heuristic, and SAM to solve the uncapacitated version of the problem. The two-phase and SAM find solutions with an average optimality gap of 0.56% and 0.2% respectively. The corresponding average computational requirements are less than 0.05 and 0.18 CPU seconds. Next, we propose tight mathematical formulations for the capacitated problem and evaluate their performance against existing approaches. We then extend the two-phase heuristic to solve this more general capacitated version. We further embed the six-phase heuristic in a SAM framework, which improves heuristic performance at minimal additional computational expense. The metaheuristic finds solutions with an average optimality gap of 0.43% and within an average time of 0.25 CPU seconds. This represents an improvement over those reported in the literature. Overall the heuristics provide a general approach to the dynamic demand lot-size problem that is capable of being applied as a stand-alone solver, an algorithm embedded with supply chain planning software, or as an upper-bounding procedure within an optimization based algorithm. Finally, this research investigates the performance of alternative coordinated lotsizing procedures when implemented in a rolling schedule environment. We find the perturbation metaheuristic to be the most suitable heuristic for implementation in rolling schedules.
Author : B. Heemsbergen
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (973 download)
Download or read book Single Level Discrete Demand Lot-sizing Heuristics written by B. Heemsbergen and published by . This book was released on 1985 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Milind Dawande
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 ( download)
Download or read book Effective Heuristics for Multi-products Shipment Models written by Milind Dawande and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B. Heemsbergen
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.:/5 (973 download)
Download or read book Single Level Discrete Demand Lot-sizing Heuristics written by B. Heemsbergen and published by . This book was released on 1985 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : José-Luis Verdegay
Publisher : Springer
ISBN 13 : 3540364617
Total Pages : 357 pages
Book Rating : 4.5/5 (43 download)
Download or read book Fuzzy Sets Based Heuristics for Optimization written by José-Luis Verdegay and published by Springer. This book was released on 2012-11-03 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this volume is to show how Fuzzy Sets and Systems can help to provide robust and adaptive heuristic optimization algorithms in a variety of situations. The book presents the state of the art and gives a broad overview on the real practical applications that Fuzzy Sets, based on heuristic algorithms, have.
Author : Ian M. Langella
Publisher : Springer Science & Business Media
ISBN 13 : 3835095951
Total Pages : 138 pages
Book Rating : 4.8/5 (35 download)
Download or read book Planning Demand-Driven Disassembly for Remanufacturing written by Ian M. Langella and published by Springer Science & Business Media. This book was released on 2007-11-08 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ian M. Langella examines the planning of disassembly for remanufacturing of used products, yielding components which are reassembled into “as good as new” items.
Author : Nelishia Pillay
Publisher : Springer
ISBN 13 : 331996514X
Total Pages : 134 pages
Book Rating : 4.3/5 (199 download)
Download or read book Hyper-Heuristics: Theory and Applications written by Nelishia Pillay and published by Springer. This book was released on 2018-10-05 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introduction to the field of hyper-heuristics presents the required foundations and tools and illustrates some of their applications. The authors organized the 13 chapters into three parts. The first, hyper-heuristic fundamentals and theory, provides an overview of selection constructive, selection perturbative, generation constructive and generation perturbative hyper-heuristics, and then a formal definition of hyper-heuristics. The chapters in the second part of the book examine applications of hyper-heuristics in vehicle routing, nurse rostering, packing and examination timetabling. The third part of the book presents advanced topics and then a summary of the field and future research directions. Finally the appendices offer details of the HyFlex framework and the EvoHyp toolkit, and then the definition, problem model and constraints for the most tested combinatorial optimization problems. The book will be of value to graduate students, researchers, and practitioners.
Author : Randall A. Napier
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (874 download)
Download or read book Matching Inventory Replenishment Heuristics to Demand Patterns written by Randall A. Napier and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Behavioral research indicates that bounded rationality and resource constraints support the use of "fast and frugal heuristics" that intentionally exclude some available information from decision models. Inventory replenishment decisions must be made quickly and efficiently, and as such are a promising realm for the use of fast and frugal heuristics. This research includes a simulation study to identify significant relationships among heuristics and demand patterns, yielding inferences regarding the advantages of selecting replenishment models to match demand patterns. Findings from the simulation are validated against three years of actual usage data for 278 independent demand items from a single industrial company. The research also develops a process-driven analytical framework for identifying best-fit demand patterns for independent demand items. The final section of the study presents a cost/benefit analysis that recognizes the differential costs of implementing and managing alternative replenishment models, and offers infreences regarding the use of simple heuristics in lieu of more data-intensive models for inventory replenishment decisions.
