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논문 기본 정보

자료유형
학위논문
저자정보

이연수 (서울대학교, 서울대학교 대학원)

발행연도
2018
저작권
서울대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (2)

초록· 키워드

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In this thesis, we consider a production planning problem arising in real-world high-technology industry, which can be regarded as a variant of the discrete lot-sizing and scheduling problem with sequence-dependent setup. We propose two mathematical formulations for this problem: standard formulation and extended formulation. We verify that the extended formulation gives tighter linear programming relaxation bound compared to the standard one by both theoretical analysis and computational experiments. Also we devise a heuristic algorithm which shows comparable performance to the algorithm provided by commercial mixed-integer programming solver.

목차

Chapter 1 Introduction 1
1.1 Problem Description 3
1.2 Research Motivation and Contribution 6
1.3 Organization of the Thesis 7
Chapter 2 Literature Review 8
2.1 Lot-sizing and Scheduling Problem 8
2.2 Discrete Lot-sizing and Scheduling Problem 13
2.3 Production Run Limit 16
Chapter 3 Problem Definition and Mathematical Formulation 17
3.1 Problem Definition and Standard Formulation 17
3.1.1 Standard Formulation 19
3.2 Extended Formulation 25
3.2.1 Network Construction 25
3.2.2 Extended Formulation 26
3.3 Comparison of Two Formulations 31
Chapter 4 Special Cases and Heuristic Algorithm 36
4.1 Special Cases 36
4.1.1 Single Item Case 36
4.1.2 Fixed Number of Item Case 40
4.2 Relax-and-Fix Algorithm 42
Chapter 5 Computational Experiments 45
5.1 Test Instances 45
5.1.1 Artificial Data 45
5.1.2 Real Data 48
5.2 Comparison of Formulations 50
5.2.1 Formulation Size 50
5.2.2 Test Results 51
5.3 Results on Relax-and-Fix Algorithm 55
Chapter 6 Conclusion 62
Bibliography 64
국문초록 72

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