Simulation Modelling Practice and Theory最新文献_第8页

Impact of communication performance measures for the Internet of Vehicles in an intersection scenario 交叉口场景下车联网通信性能指标的影响

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-08 DOI: 10.1016/j.simpat.2025.103086

Haijian Li , Qi Zhang , Lijun Wu , Zihan Zhang

引用次数: 0

Harnessing coloured Petri nets to enhance machine learning:A simulation-based method for healthcare and beyond 利用彩色Petri网增强机器学习：一种基于模拟的医疗保健及其他领域的方法

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-07 DOI: 10.1016/j.simpat.2025.103080

Andressa C.M. da Silveira , Álvaro Sobrinho , Leandro Dias da Silva , Danilo F.S. Santos , Muhammad Nauman , Angelo Perkusich

{"title":"Harnessing coloured Petri nets to enhance machine learning:A simulation-based method for healthcare and beyond","authors":"Andressa C.M. da Silveira , Álvaro Sobrinho , Leandro Dias da Silva , Danilo F.S. Santos , Muhammad Nauman , Angelo Perkusich","doi":"10.1016/j.simpat.2025.103080","DOIUrl":"10.1016/j.simpat.2025.103080","url":null,"abstract":"<div><div>Many industries use Machine Learning (ML) techniques to enhance systems’ performance. However, integrating ML into these systems poses challenges, often requiring improved explainability and accuracy. Using formal methods is a potential solution to address these challenges. This paper presents a simulation-based method using Coloured Petri Nets (CPN) to enhance the explainability and accuracy of Decision Tree (DT) and Random Forest (RF) models, which industries such as healthcare widely adopt. Our simulation-based method, named RuleXtract/CPN, provides procedures for the automatic extraction of decision rules from an implemented ML model, the generation of these decision rules into a CPN model, the analysis of the CPN model through simulations, and the adjustment of the CPN model to improve explainability and accuracy. Automating the transformation from DT/RF to a CPN model and the analysis procedures can reduce the time and effort needed for modeling tasks. We used web technologies and the Access/CPN framework to implement the procedures defined in our simulation-based method so that users would not need CPN expertise to generate and simulate models, running them in the background. An experiment with three datasets for COVID-19 and five for Influenza screening shows that applying our simulation-based method results in more explainable models. The experiment also shows improvement in accuracy measures for RF models. For instance, the accuracy of the RF model using the Influenza rapid test balanced dataset increased from 84.02% to 86.34%, and the unbalanced dataset from 84.78% to 87.53%. Our results underscore the importance of eliminating duplicated, poorly generalized, and incorrect rules to improve explainability and accuracy. These findings also emphasize the effectiveness of using CPN to improve the models, paving the way for future research.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"140 ","pages":"Article 103080"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An efficient congestion control scheme for railway transport networks 一种有效的铁路交通网络拥塞控制方案

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-07 DOI: 10.1016/j.simpat.2025.103085

Zongtao Duan, Jianrong Cao, Xing Sheng, Junzhe Zhang

{"title":"An efficient congestion control scheme for railway transport networks","authors":"Zongtao Duan, Jianrong Cao, Xing Sheng, Junzhe Zhang","doi":"10.1016/j.simpat.2025.103085","DOIUrl":"10.1016/j.simpat.2025.103085","url":null,"abstract":"<div><div>As the complexity of railway transmission network services continues to increase, burst traffic and the mixing of signaling have become significant challenges in congestion control. This paper presents a congestion control strategy based on the stochastic flow queue-controlled delay (SFQ-CoDel) algorithm, developed through an analysis of the traffic characteristics and operational demands of contemporary railway transmission networks. The scheme primarily integrates a random flow queue mechanism with a dynamic Hurst coefficient calculation method. The random flow queue employs hash mapping to distinguish data packets, thereby ensuring fair bandwidth allocation across active sub-flows. The dynamic computation of the Hurst coefficient, coupled with a minimum queue delay, formulates a packet loss strategy that effectively mitigates the effects of burst traffic. Experimental results indicate that the SFQ-CoDel algorithm excels in minimizing packet loss, enhancing throughput, and maintaining stable queue lengths, regardless of the load. Additionally, an analysis of parameter adjustability confirms that, even with the inclusion of the stochastic flow queue (SFQ) mechanism, the CoDel parameters consistently sustain optimal algorithm performance. Therefore, the proposed congestion control scheme provides a robust and adaptable framework for managing congestion within railway transmission networks.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"140 ","pages":"Article 103085"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical study on the reinforcement mechanism of prestressed bolts based on the reconstruction of coal fracture structures 基于裂隙结构重构的预应力锚杆加固机理数值研究

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103046

Guanghui Wang , Xiangyu Wang , Jiaxin Zhao , Jianbiao Bai

{"title":"Numerical study on the reinforcement mechanism of prestressed bolts based on the reconstruction of coal fracture structures","authors":"Guanghui Wang , Xiangyu Wang , Jiaxin Zhao , Jianbiao Bai","doi":"10.1016/j.simpat.2024.103046","DOIUrl":"10.1016/j.simpat.2024.103046","url":null,"abstract":"<div><div>The presence of structural weak planes severely affects the stability of the surrounding rocks in underground engineering and the safety of deep resource extraction. This study utilized the discrete element method to simulate and reconstruct the fracture network in the surrounding rocks. A model of the anchored solid containing a fracture network was established using a synthetic rock mass approach. Confined compression tests were conducted on anchored models with different support densities and pretension forces. The results indicate that both high support density and high pretension force can enhance the mechanical properties of fractured anchored solids to varying degrees, significantly improving the bearing capacity during the plastic phase. Additionally, high support density and pretension force can notably alter the failure mode of the anchored solid under load, reducing lateral displacement, delaying the initiation of primary fractures, and decreasing the number of newly formed fractures. From the perspective of prestressed load bearing, increasing anchor density or applying a high pretension force facilitates the formation of a wide and high-strength effective compressive stress zone. This in turn reduces the opening and sliding of primary fracture fields, the generation and propagation of secondary fractures, improves the stress state of the anchored solid, and enhances the overall strength of the surrounding rocks within the anchoring range. From the viewpoint of energy absorption and dissipation, increasing anchor support density and pretension force can significantly improve the ability of surrounding rocks to absorb external input energy, enhance the disturbance resistance of the anchored solid, and slow down the release of strain energy. The modeling process and research findings of this study offer valuable insights for analyzing structural failure and stability control in fractured rock masses.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103046"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adversarial domain adaptation based on contrastive learning for bearings fault diagnosis 基于对比学习的对抗域自适应轴承故障诊断

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103058

Xiaolei Pan , Hongxiao Chen , Wei Wang , Xiaoyan Su

{"title":"Adversarial domain adaptation based on contrastive learning for bearings fault diagnosis","authors":"Xiaolei Pan , Hongxiao Chen , Wei Wang , Xiaoyan Su","doi":"10.1016/j.simpat.2024.103058","DOIUrl":"10.1016/j.simpat.2024.103058","url":null,"abstract":"<div><div>Accurate fault diagnosis of machines is crucial for increasing efficiency, reducing maintenance costs, and preventing catastrophic consequences.While data-driven methods have shown promise in fault diagnosis, most existing models frequently encounter challenges in achieving satisfactory results in industrial fault diagnosis due to varying working conditions. Studies on domain adaptation have made significant contributions to addressing this problem. However, most of these methods concentrate on aligning the inter-domain distributions, whereas the degradation of intra-domain classification performance is overlooked, resulting in confusion at the class boundaries of the target domain during cross-domain diagnosis. To address this issue, a self-supervised domain contrastive discrimination network (SDCDN) is proposed for bearing fault diagnosis under variable working conditions. The proposed method takes the data from both the source and target domains as input for contrastive learning training. Through self-supervised learning, the feature enhancer is trained to capture domain-contrastive features and effectively distinguish the target category. By aligning the distribution of the source and target domains through adversarial learning, the cross-domain diagnosis is achieved without supervision. To validate the effectiveness of the proposed method, six cross-conditional diagnostic tasks are performed on each dataset, utilizing two bearing datasets containing different damage types and a gearbox dataset. The evaluation indicators employed are diagnostic accuracy and computational efficiency. Furthermore, an ablation study is conducted to evaluate the contribution of the domain contrast and discrimination modules. The results demonstrate that the average accuracy of the proposed method is markedly superior to that of the comparison methods for all six cross-domain diagnostic tasks in each of the three datasets, highlighting the superiority of the proposed method.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103058"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An improved parallel scheduling algorithm for periodic directed acyclic graphs 一种改进的周期有向无环图并行调度算法

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103045

Junfan Zhang , Xiao Song , Lin Qin , Ying Cui

{"title":"An improved parallel scheduling algorithm for periodic directed acyclic graphs","authors":"Junfan Zhang , Xiao Song , Lin Qin , Ying Cui","doi":"10.1016/j.simpat.2024.103045","DOIUrl":"10.1016/j.simpat.2024.103045","url":null,"abstract":"<div><div>The periodic directed acyclic graph (DAG) is an important system model widely used to describe the structure and function of time-critical applications. The nodes in periodic DAGs are not only coupled with each other by input-output relations but also connected via the preceding period, making it hard to find an optimal schedule. This paper proposes an improved parallel scheduling algorithm for periodic DAGs (PSA-PDAG), decoupling the dependencies between nodes. In each period, PSA-PDAG computes more nodes in parallel, greatly improving the parallelism during computation. By applying PSA-PDAG, the computation time of each period is only the maximum update time among all nodes, which is superior to existing parallel algorithms. In typical periodic DAG examples, theoretical analysis and experimental results show that PSA-PDAG generally outperforms existing serial and hierarchical scheduling parallel algorithms. For instance, in the hybrid-structure large-scale experiment with 128 DAG nodes, compare with the 2.0x speedup of the hierarchical scheduling parallel algorithm, PSA-PDAG can achieve a considerable 48.6x speedup with 128 cores.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103045"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multi-agent system simulation of job shop scheduling with human consideration: A comparative analysis of AGVs and AIVs 考虑人为因素的作业车间调度多智能体仿真：agv与aiv的比较分析

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103060

Kader Sanogo , Abdelkader Mekhalef Benhafssa , M’hammed Sahnoun

{"title":"A multi-agent system simulation of job shop scheduling with human consideration: A comparative analysis of AGVs and AIVs","authors":"Kader Sanogo , Abdelkader Mekhalef Benhafssa , M’hammed Sahnoun","doi":"10.1016/j.simpat.2024.103060","DOIUrl":"10.1016/j.simpat.2024.103060","url":null,"abstract":"<div><div>The manufacturing landscape is undergoing a paradigm shift towards Industry 5.0, emphasizing human-centricity in a collaborative environment between humans and robots. In this context, the job shop scheduling problem (JSSP) remains a critical aspect of workshop management, optimizing task sequencing to minimize the overall completion time (makespan). Traditionally, autonomous and guided vehicles (AGVs) have been employed for tasks transportation within workshops. However, their limited flexibility and reliance on dedicated pathways hinder seamless integration with human workers. Autonomous and intelligent vehicles (AIVs) emerge as a promising alternative, offering enhanced adaptability and the ability to navigate alongside humans in shared spaces. Despite the emphasis on human-centricity as a foundation of manufacturing in Industry 5.0, research explicitly considering human factors in JSSPs remains scarce. Hence, this study delves into the transition from AGVs to AIVs within the context of JSSP, evaluating their impact on the makespan and the influence of human presence on AIV operations. Employing a multi-agent system (MAS)-based simulation approach, we model the stochastic human behaviour using discrete-time Markov chains (DTMC) and investigate the impact of the interactions between AIVs and human workers within shared movement corridors. Our findings highlight the potential of AIVs to enhance workshop efficiency over AGVs, and their effectiveness in human-centred manufacturing policy, paving the way for more collaborative and adaptable production systems.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103060"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of the multi-grid modelling method to pedestrian social group dynamics through a bottleneck 多网格建模方法在行人社会群体动态瓶颈中的应用

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103049

Yangjian He , Qingxin Shi , Libi Fu , Qiyi Chen , Chenxin Shen , Yu Zhang , Yongqian Shi , Jacqueline T.Y. Lo

{"title":"Application of the multi-grid modelling method to pedestrian social group dynamics through a bottleneck","authors":"Yangjian He , Qingxin Shi , Libi Fu , Qiyi Chen , Chenxin Shen , Yu Zhang , Yongqian Shi , Jacqueline T.Y. Lo","doi":"10.1016/j.simpat.2024.103049","DOIUrl":"10.1016/j.simpat.2024.103049","url":null,"abstract":"<div><div>There is a high proportion of social groups in crowds. The influence of social groups on crowd mobility is particularly evident in emergency situations and in confined movement environments. However, studies on the characteristics of social group movement through a bottleneck with different widths are limited. Therefore, the computation and simulation are performed in a corridor with a bottleneck involving individuals and three types of groups (namely two-person, three-person and four-person groups) using a modified multi-grid model. The original multi-grid model is modified by introducing interactions between pedestrians, avoidance behavior and group behavior, and validated by data from a controlled experiment. It is found that the group configuration can be adjusted to the changing scenarios during the passing movement. The movement efficiency and level of walking comfort for pedestrians are significantly improved in wider bottlenecks. Passing efficiency is evidently increased and congestion is reduced, when social groups occupy a large proportion of the crowd in a narrow bottleneck. These numerical findings may provide new insights for analyzing nonlinear pedestrian social group dynamics.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103049"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

2-D deployment of aerial base stations: A simulation model to provide voice communication 空中基站的二维部署：提供语音通信的仿真模型

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103048

Gabriela Rodríguez-Cortés , Anabel Martínez-Vargas , MA Cosío-León , Daniela M. Martínez , Oscar Montiel

{"title":"2-D deployment of aerial base stations: A simulation model to provide voice communication","authors":"Gabriela Rodríguez-Cortés , Anabel Martínez-Vargas , MA Cosío-León , Daniela M. Martínez , Oscar Montiel","doi":"10.1016/j.simpat.2024.103048","DOIUrl":"10.1016/j.simpat.2024.103048","url":null,"abstract":"<div><div>Unmanned aerial vehicles (UAVs) offer a potential alternative for providing voice services in areas where communication is disrupted due to natural disasters. These UAVs can be configured as aerial base stations (ABSs), enabling the deployment of a temporary communications network. However, communication networks based on ABSs pose several significant challenges. One of these challenges involves addressing interruptions or limitations in network coverage caused by natural disasters. In such situations, there is a high likelihood that users within the affected area may be unable to communicate due to a lack of coverage. This is a complex problem because it depends on factors, such as the mobile user locations, the characteristics of the air-to-ground channel, and geographical details of the area. In this work, we propose an optimization model to determine the placement of a set of ABSs within a limited disaster area that maximizes the probability of successful voice services (PSVSs). This optimization model integrates a network evaluation model that analyzes the wireless environment at a specific time. The network evaluation model utilizes two-ray and Rayleigh channel models, enabling the simulation of a worst-case scenario for wireless communication systems. We evaluate the proposed optimization model using the (1+1)-evolution strategy with a one-fifth success rule. We explore various parameter configurations to understand their impact on algorithm performance. This analysis helps identify the configuration of the optimization model that yields the maximum PSVSs. Simulation results indicate that by appropriately configuring the evolution strategy algorithm and comparing random ABS locations with those determined ABS locations by the evolution strategy algorithm, the PSVS can be enhanced by an average of 60%.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103048"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143145588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of oil capture characteristics and global sensitivity of radial oil scoops with different blade radius differences for high-speed bearings 高速轴承不同叶片半径差径向油勺捕油特性及全局灵敏度分析

IF 3.5 2区计算机科学

Simulation Modelling Practice and Theory Pub Date : 2025-02-01 DOI: 10.1016/j.simpat.2024.103057

Chi Zhang , Le Jiang , Yaguo Lyu , Wenjun Gao , Yewei Liu , Zhenxia Liu

{"title":"Analysis of oil capture characteristics and global sensitivity of radial oil scoops with different blade radius differences for high-speed bearings","authors":"Chi Zhang , Le Jiang , Yaguo Lyu , Wenjun Gao , Yewei Liu , Zhenxia Liu","doi":"10.1016/j.simpat.2024.103057","DOIUrl":"10.1016/j.simpat.2024.103057","url":null,"abstract":"<div><div>Aero-engines that employ under-race lubrication technology offer significant advantages by ensuring adequate lubrication and cooling of the bearings, while also achieving substantial weight reduction and size optimization. The oil capture characteristics, including oil capture efficiency and captured oil amount, in radial under-race lubrication are influenced by the operating and structural parameters of the oil scoop. This study presents a comprehensive investigation of radial oil scoops with varying blade radius differences, combining numerical simulations and experimental investigations. The findings indicate that appropriately reducing the blade radius difference enhances the maximum oil capture efficiency while simultaneously raising the corresponding threshold speed. Among the tested configurations, the design with a 7.5mm radius difference demonstrates the highest oil capture efficiency under most operational conditions. Furthermore, a surrogate model integrated with global sensitivity analysis quantitatively assesses the influence of design parameters on oil capture characteristics, highlighting the injection angle as the most significant factor. Finally, by fitting data on the momentum flux ratio and optimal injection angle, a predictive correlation between these variables is established, with a maximum error of merely within 4%. This comprehensive research contributes to the advancement of radial under-race lubrication systems in aero-engines, leading to optimized designs that enhance overall performance and efficiency.</div></div>","PeriodicalId":49518,"journal":{"name":"Simulation Modelling Practice and Theory","volume":"139 ","pages":"Article 103057"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0