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Paper Abstract and Keywords
Presentation 2013-11-07 14:00
Hybrid CP/MIP Method for Car Control and Assignment Problem in Mce Systems
Tatsuya Minegishi, Toshiyuki Miyamoto (Osaka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) As the height of buildings grows, the demand of enhancing transportation capability in buildings has been increasing.If many elevator shafts are installed, its footprint occupies most floor space; floor space for activities is reduced.%There is a problem that a lot of floor space cannot be used because elevators occupy a lot of floor space when many elevator shafts are installed.Multi-car elevator (MCE) systems are studied as one of the solutions for this problem. MCE systems can increase transportation capability without increasing floor space because MCE systems have several cars in each shaft.Optimization of car control and call assignment is necessary to control MCE systems safety and transport passengers rapidly.
Our previous studies formulated the optimization problem as an Integer Program (IP) and a Mixed Integer Program (MIP).There, however, is a problem on computational complexity. Therefore, a hybrid method of Constraint Program (CP) and MIP is proposed in this paper and is evaluated through computational experiments.The results show that the proposed method can transport passengers faster than existing methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Multi-car elevator / Constraint Program / Mixed Integer Program / Optimization / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 279, MSS2013-46, pp. 129-134, Nov. 2013.
Paper # MSS2013-46 
Date of Issue 2013-10-30 (CAS, MSS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MSS CAS IPSJ-AL  
Conference Date 2013-11-06 - 2013-11-07 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To MSS 
Conference Code 2013-11-MSS-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Hybrid CP/MIP Method for Car Control and Assignment Problem in Mce Systems 
Sub Title (in English)  
Keyword(1) Multi-car elevator  
Keyword(2) Constraint Program  
Keyword(3) Mixed Integer Program  
Keyword(4) Optimization  
1st Author's Name Tatsuya Minegishi  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Toshiyuki Miyamoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2013-11-07 14:00:00 
Presentation Time 20 
Registration for MSS 
Paper # IEICE-CAS2013-67,IEICE-MSS2013-46 
Volume (vol) IEICE-113 
Number (no) no.278(CAS), no.279(MSS) 
Page pp.129-134 
#Pages IEICE-6 
Date of Issue IEICE-CAS-2013-10-30,IEICE-MSS-2013-10-30 

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