复杂系统建模与仿真(英文)最新文献_第6页

Simulation of COVID-19 Outbreak in Nanjing Lukou Airport Based on Complex Dynamical Networks 基于复杂动态网络的南京禄口机场新冠肺炎疫情模拟

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2023.0001

Bin Chen;Runkang Guo;Zhengqiu Zhu;Chuan Ai;Xiaogang Qiu

{"title":"Simulation of COVID-19 Outbreak in Nanjing Lukou Airport Based on Complex Dynamical Networks","authors":"Bin Chen;Runkang Guo;Zhengqiu Zhu;Chuan Ai;Xiaogang Qiu","doi":"10.23919/CSMS.2023.0001","DOIUrl":"10.23919/CSMS.2023.0001","url":null,"abstract":"The Corona Virus Disease 2019 (COVID-19) pandemic is still imposing a devastating impact on public health, the economy, and society. Predicting the development of epidemics and exploring the effects of various mitigation strategies have been a research focus in recent years. However, the spread simulation of COVID-19 in the dynamic social system is relatively unexplored. To address this issue, considering the outbreak of COVID-19 at Nanjing Lukou Airport in 2021, we constructed an artificial society of Nanjing Lukou Airport based on the Artificial societies, Computational experiments, and Parallel execution (ACP) approach. Specifically, the artificial society includes an environmental model, population model, contact networks model, disease spread model, and intervention strategy model. To reveal the dynamic variation of individuals in the airport, we first modeled the movement of passengers and designed an algorithm to generate the moving traces. Then, the mobile contact networks were constructed and aggregated with the static networks of staff and passengers. Finally, the complex dynamical network of contacts between individuals was generated. Based on the artificial society, we conducted large-scale computational experiments to study the spread characteristics of COVID-19 in an airport and to investigate the effects of different intervention strategies. Learned from the reproduction of the outbreak, it is found that the increase in cumulative incidence exhibits a linear growth mode, different from that (an exponential growth mode) in a static network. In terms of mitigation measures, promoting unmanned security checks and boarding in an airport is recommended, as to reduce contact behaviors between individuals and staff.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"71-82"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065402.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47381255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Load Optimization Scheduling of Chip Mounter Based on Hybrid Adaptive Optimization Algorithm 基于混合自适应优化算法的贴片机负载优化调度

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2022.0026

Xuesong Yan;Hao Zuo;Chengyu Hu;Wenyin Gong;Victor S. Sheng

{"title":"Load Optimization Scheduling of Chip Mounter Based on Hybrid Adaptive Optimization Algorithm","authors":"Xuesong Yan;Hao Zuo;Chengyu Hu;Wenyin Gong;Victor S. Sheng","doi":"10.23919/CSMS.2022.0026","DOIUrl":"10.23919/CSMS.2022.0026","url":null,"abstract":"A chip mounter is the core equipment in the production line of the surface-mount technology, which is responsible for finishing the mount operation. It is the most complex and time-consuming stage in the production process. Therefore, it is of great significance to optimize the load balance and mounting efficiency of the chip mounter and improve the mounting efficiency of the production line. In this study, according to the specific type of chip mounter in the actual production line of a company, a maximum and minimum model is established to minimize the maximum cycle time of the chip mounter in the production line. The production efficiency of the production line can be improved by optimizing the workload scheduling of each chip mounter. On this basis, a hybrid adaptive optimization algorithm is proposed to solve the load scheduling problem of the mounter. The hybrid algorithm is a hybrid of an adaptive genetic algorithm and the improved ant colony algorithm. It combines the advantages of the two algorithms and improves their global search ability and convergence speed. The experimental results show that the proposed hybrid optimization algorithm has a good optimization effect and convergence in the load scheduling problem of chip mounters.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065396.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42369062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Multi-Objective Scheduling and Routing Problem for Home Health Care Services via Brain Storm Optimization 基于脑风暴优化的家庭医疗服务多目标调度与路由问题

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2022.0025

Xiaomeng Ma;Yaping Fu;Kaizhou Gao;Lihua Zhu;Ali Sadollah

{"title":"A Multi-Objective Scheduling and Routing Problem for Home Health Care Services via Brain Storm Optimization","authors":"Xiaomeng Ma;Yaping Fu;Kaizhou Gao;Lihua Zhu;Ali Sadollah","doi":"10.23919/CSMS.2022.0025","DOIUrl":"10.23919/CSMS.2022.0025","url":null,"abstract":"At present, home health care (HHC) has been accepted as an effective method for handling the healthcare problems of the elderly. The HHC scheduling and routing problem (HHCSRP) attracts wide concentration from academia and industrial communities. This work proposes an HHCSRP considering several care centers, where a group of customers (i.e., patients and the elderly) require being assigned to care centers. Then, various kinds of services are provided by caregivers for customers in different regions. By considering the skill matching, customers' appointment time, and caregivers' workload balancing, this article formulates an optimization model with multiple objectives to achieve minimal service cost and minimal delay cost. To handle it, we then introduce a brain storm optimization method with particular multi-objective search mechanisms (MOBSO) via combining with the features of the investigated HHCSRP. Moreover, we perform experiments to test the effectiveness of the designed method. Via comparing the MOBSO with two excellent optimizers, the results confirm that the developed method has significant superiority in addressing the considered HHCSRP.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"32-46"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065398.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46756248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A Coevolutionary Algorithm for Many-Objective Optimization Problems with Independent and Harmonious Objectives 具有独立协调目标的多目标优化问题的协同进化算法

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2022.0024

Fangqing Gu;Haosen Liu;Hailin Liu

{"title":"A Coevolutionary Algorithm for Many-Objective Optimization Problems with Independent and Harmonious Objectives","authors":"Fangqing Gu;Haosen Liu;Hailin Liu","doi":"10.23919/CSMS.2022.0024","DOIUrl":"https://doi.org/10.23919/CSMS.2022.0024","url":null,"abstract":"Evolutionary algorithm is an effective strategy for solving many-objective optimization problems. At present, most evolutionary many-objective algorithms are designed for solving many-objective optimization problems where the objectives conflict with each other. In some cases, however, the objectives are not always in conflict. It consists of multiple independent objective subsets and the relationship between objectives is unknown in advance. The classical evolutionary many-objective algorithms may not be able to effectively solve such problems. Accordingly, we propose an objective set decomposition strategy based on the partial set covering model. It decomposes the objectives into a collection of objective subsets to preserve the nondominance relationship as much as possible. An optimization subproblem is defined on each objective subset. A coevolutionary algorithm is presented to optimize all subproblems simultaneously, in which a nondominance ranking is presented to interact information among these sub-populations. The proposed algorithm is compared with five popular many-objective evolutionary algorithms and four objective set decomposition based evolutionary algorithms on a series of test problems. Numerical experiments demonstrate that the proposed algorithm can achieve promising results for the many-objective optimization problems with independent and harmonious objectives.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"59-70"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065401.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49952454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Search-Based Software Test Data Generation for Path Coverage Based on a Feedback-Directed Mechanism 基于反馈导向机制的路径覆盖搜索软件测试数据生成

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2022.0027

Stuart Dereck Semujju;Han Huang;Fangqing Liu;Yi Xiang;Zhifeng Hao

{"title":"Search-Based Software Test Data Generation for Path Coverage Based on a Feedback-Directed Mechanism","authors":"Stuart Dereck Semujju;Han Huang;Fangqing Liu;Yi Xiang;Zhifeng Hao","doi":"10.23919/CSMS.2022.0027","DOIUrl":"10.23919/CSMS.2022.0027","url":null,"abstract":"Automatically generating test cases by evolutionary algorithms to satisfy the path coverage criterion has attracted much research attention in software testing. In the context of generating test cases to cover many target paths, the efficiency of existing methods needs to be further improved when infeasible or difficult paths exist in the program under test. This is because a significant amount of the search budget (i.e., time allocated for the search to run) is consumed when computing fitness evaluations of individuals on infeasible or difficult paths. In this work, we present a feedback-directed mechanism that temporarily removes groups of paths from the target paths when no improvement is observed for these paths in subsequent generations. To fulfill this task, our strategy first organizes paths into groups. Then, in each generation, the objective scores of each individual for all paths in each group are summed up. For each group, the lowest value of the summed up objective scores among all individuals is assigned as the best aggregated score for a group. A group is removed when no improvement is observed in its best aggregated score over the last two generations. The experimental results show that the proposed approach can significantly improve path coverage rates for programs under test with infeasible or difficult paths in case of a limited search budget. In particular, the feedback-directed mechanism reduces wasting the search budget on infeasible paths or on difficult target paths that require many fitness evaluations before getting an improvement.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"12-31"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065399.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46941872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Parallel High-Utility Itemset Mining Algorithm Based on Hadoop 基于Hadoop的并行高效项集挖掘算法

复杂系统建模与仿真(英文) Pub Date : 2023-03-09 DOI: 10.23919/CSMS.2022.0023

Zaihe Cheng;Wei Shen;Wei Fang;Jerry Chun-Wei Lin

{"title":"A Parallel High-Utility Itemset Mining Algorithm Based on Hadoop","authors":"Zaihe Cheng;Wei Shen;Wei Fang;Jerry Chun-Wei Lin","doi":"10.23919/CSMS.2022.0023","DOIUrl":"10.23919/CSMS.2022.0023","url":null,"abstract":"High-utility itemset mining (HUIM) can consider not only the profit factor but also the profitable factor, which is an essential task in data mining. However, most HUIM algorithms are mainly developed on a single machine, which is inefficient for big data since limited memory and processing capacities are available. A parallel efficient high-utility itemset mining (P-EFIM) algorithm is proposed based on the Hadoop platform to solve this problem in this paper. In P-EFIM, the transaction-weighted utilization values are calculated and ordered for the itemsets with the MapReduce framework. Then the ordered itemsets are renumbered, and the low-utility itemsets are pruned to improve the dataset utility. In the Map phase, the P-EFIM algorithm divides the task into multiple independent subtasks. It uses the proposed S-style distribution strategy to distribute the subtasks evenly across all nodes to ensure load-balancing. Furthermore, the P-EFIM uses the EFIM algorithm to mine each subtask dataset to enhance the performance in the Reduce phase. Experiments are performed on eight datasets, and the results show that the runtime performance of P-EFIM is significantly higher than that of the PHUI-Growth, which is also HUIM algorithm based on the Hadoop framework.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"3 1","pages":"47-58"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10065394/10065400.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47778808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Coevolutionary Algorithm for Many-Objective Optimization Problems with Independent and Harmonious Objectives 具有独立协调目标的多目标优化问题的协同进化算法

复杂系统建模与仿真(英文) Pub Date : 2023-03-01 DOI: 10.23919/csms.2022.0024

Fangqing Gu, Haosen Liu, Hailin Liu

引用次数: 0

Total Contents 全部内容

复杂系统建模与仿真(英文) Pub Date : 2022-12-01 DOI: 10.23919/CSMS.2022.10004915

引用次数: 0

Quantum-Inspired Distributed Memetic Algorithm 量子启发的分布式模因算法

复杂系统建模与仿真(英文) Pub Date : 2022-12-01 DOI: 10.23919/CSMS.2022.0021

Guanghui Zhang;Wenjing Ma;Keyi Xing;Lining Xing;Kesheng Wang

{"title":"Quantum-Inspired Distributed Memetic Algorithm","authors":"Guanghui Zhang;Wenjing Ma;Keyi Xing;Lining Xing;Kesheng Wang","doi":"10.23919/CSMS.2022.0021","DOIUrl":"10.23919/CSMS.2022.0021","url":null,"abstract":"This paper proposed a novel distributed memetic evolutionary model, where four modules distributed exploration, intensified exploitation, knowledge transfer, and evolutionary restart are coevolved to maximize their strengths and achieve superior global optimality. Distributed exploration evolves three independent populations by heterogenous operators. Intensified exploitation evolves an external elite archive in parallel with exploration to balance global and local searches. Knowledge transfer is based on a point-ring communication topology to share successful experiences among distinct search agents. Evolutionary restart adopts an adaptive perturbation strategy to control search diversity reasonably. Quantum computation is a newly emerging technique, which has powerful computing power and parallelized ability. Therefore, this paper further fuses quantum mechanisms into the proposed evolutionary model to build a new evolutionary algorithm, referred to as quantum-inspired distributed memetic algorithm (QDMA). In QDMA, individuals are represented by the quantum characteristics and evolved by the quantum-inspired evolutionary optimizers in the quantum hyperspace. The QDMA integrates the superiorities of distributed, memetic, and quantum evolution. Computational experiments are carried out to evaluate the superior performance of QDMA. The results demonstrate the effectiveness of special designs and show that QDMA has greater superiority compared to the compared state-of-the-art algorithms based on Wilcoxon's rank-sum test. The superiority is attributed not only to good cooperative coevolution of distributed memetic evolutionary model, but also to superior designs of each special component.","PeriodicalId":65786,"journal":{"name":"复杂系统建模与仿真(英文)","volume":"2 4","pages":"334-353"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9420428/10004846/10004910.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45416730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model Construction and Numerical Simulation for Hydroplaning of Complex Tread Tires 复杂胎面轮胎打滑模型构建及数值模拟

复杂系统建模与仿真(英文) Pub Date : 2022-12-01 DOI: 10.23919/CSMS.2022.0020

Senwang Tao;Jinbiao Wang;Ruonan Dong

引用次数: 0