A two-phase approach for the Radiotherapy Scheduling Problem

2021 ◽  
Author(s):  
Tu-San Pham ◽  
Louis-Martin Rousseau ◽  
Patrick De Causmaecker
Keyword(s):  
Scheduling Problem ◽  
Two Phase ◽  
Phase Approach

A two-phase approach to solve the synchronized bin–forklift scheduling problem

2015 ◽  
Vol 29 (3) ◽  
pp. 651-657 ◽  
Author(s):  
Nizar El Hachemi ◽  
Mohammed Saddoune ◽  
Issmail El Hallaoui ◽  
Louis-Martin Rousseau
Keyword(s):  
Scheduling Problem ◽  
Two Phase ◽  
Phase Approach

An effective two-phase approach in solving a practical multi-site order scheduling problem

2011 ◽  
Vol 28 (7) ◽  
pp. 543-552 ◽  
Author(s):  
Cheng-Kang Lee ◽  
Yu-An Shen ◽  
Taho Yang ◽  
Ai-Ling Tang
Keyword(s):  
Scheduling Problem ◽  
Order Scheduling ◽  
Two Phase ◽  
Phase Approach

A two-phase approach for solving the multi-skill resource-constrained multi-project scheduling problem: a case study in construction industry

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amir Hossein Hosseinian ◽  
Vahid Baradaran
Keyword(s):  
Control Chart ◽  
Project Scheduling ◽  
Test Problems ◽  
Scheduling Problem ◽  
Resource Constrained ◽  
Two Phase ◽  
Content Type ◽  
Phase Approach ◽  
Multi Objective ◽  
Project Scheduling Problem

PurposeThe purpose of this research is to study the Multi-Skill Resource-Constrained Multi-Project Scheduling Problem (MSRCMPSP), where (1) durations of activities depend on the familiarity levels of assigned workers, (2) more efficient workers demand higher per-day salaries, (3) projects have different due dates and (4) the budget of each period varies over time. The proposed model is bi-objective, and its objectives are minimization of completion times and costs of all projects, simultaneously.Design/methodology/approachThis paper proposes a two-phase approach based on the Statistical Process Control (SPC) to solve this problem. This approach aims to develop a control chart so as to monitor the performance of an optimizer during the optimization process. In the first phase, a multi-objective statistical model has been used to obtain control limits of this chart. To solve this model, a Multi-Objective Greedy Randomized Adaptive Search Procedure (MOGRASP) has been hired. In the second phase, the MSRCMPSP is solved via a New Version of the Multi-Objective Variable Neighborhood Search Algorithm (NV-MOVNS). In each iteration, the developed control chart monitors the performance of the NV-MOVNS to obtain proper solutions. When the control chart warns about an out-of control state, a new procedure based on the Conway’s Game of Life, which is a cellular automaton, is used to bring the algorithm back to the in-control state.FindingsThe proposed two-phase approach has been used in solving several standard test problems available in the literature. The results are compared with the outputs of some other methods to assess the efficiency of this approach. Comparisons imply the high efficiency of the proposed approach in solving test problems with different sizes.Practical implicationsThe proposed model and approach have been used to schedule multiple projects of a construction company in Iran. The outputs show that both the model and the NV-MOVNS can be used in real-world multi-project scheduling problems.Originality/valueDue to the numerous numbers of studies reviewed in this research, the authors discovered that there are few researches on the multi-skill resource-constrained multi-project scheduling problem (MSRCMPSP) with the aforementioned characteristics. Moreover, none of the previous researches proposed an SPC-based solution approach for meta-heuristics in order to solve the MSRCMPSP.

A two-phase approach for mining weighted partial periodic patterns

2014 ◽  
Vol 30 ◽  
pp. 225-234 ◽  
Author(s):  
Kung-Jiuan Yang ◽  
Tzung-Pei Hong ◽  
Guo-Cheng Lan ◽  
Yuh-Min Chen
Keyword(s):  
Periodic Patterns ◽  
Two Phase ◽  
Phase Approach

A two-phase approach for jointly determining the lot size and delivery policy in a vendor-buyer integrated system with rework

2011 ◽  
Vol 32 (6) ◽  
pp. 1417-1423
Author(s):  
Singa Wang Chiu ◽  
Jyh-Chau Yang ◽  
Chao-Chih Huang ◽  
Kuo-Wei Chiang
Keyword(s):  
Integrated System ◽  
Lot Size ◽  
Two Phase ◽  
Phase Approach ◽  
Delivery Policy
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