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Multi-class dynamic network traffic flow propagation model with physical queues
Yanfeng LI, Jun LI
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 399-407 doi: 10.15302/J-FEM-2017041
关键词: first-in-first-out (FIFO) multi-class traffic physical queues traffic flow modeling
Identification of thermal error in a feed system based on multi-class LS-SVM
Chao JIN, Bo WU, Youmin HU, Yao CHENG
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 47-54 doi: 10.1007/s11465-012-0307-6
Research of thermal characteristics has been a key issue in the development of high-speed feed system. The thermal positioning error of a ball-screw is one of the most important objects to consider for high-accuracy and high-speed machine tools. The research work undertaken herein ultimately aims at the development of a comprehensive thermal error identification model with high accuracy and robust. Using multi-class least squares support vector machines (LS-SVM), the thermal positioning error of the feed system is identified with the variance and mean square value of the temperatures of supporting bearings and screw-nut as feature vector. A series of experiments were carried out on a self-made quasi high-speed feed system experimental bench HUST-FS-001 to verify the identification capacity of the presented method. The results show that the recommended model can be used to predict the thermal error of a feed system with good accuracy, which is better than the ordinary BP and RBF neural network. The work described in this paper lays a solid foundation of thermal error prediction and compensation in a feed system.
关键词: least squares support vector machine (LS-SVM) feed system thermal error precision machining
基于最大间隔的贝叶斯分类器 Article
Tao-cheng HU,Jin-hui YU
《信息与电子工程前沿(英文)》 2016年 第17卷 第10期 页码 973-981 doi: 10.1631/FITEE.1601078
关键词: 多类学习;最大间隔学习;在线算法
边信道攻击和学习向量量化 Article
Ehsan SAEEDI, Yinan KONG, Md. Selim HOSSAIN
《信息与电子工程前沿(英文)》 2017年 第18卷 第4期 页码 511-518 doi: 10.1631/FITEE.1500460
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 877-894 doi: 10.1007/s11709-021-0756-2
关键词: bridges multi-lane factor traffic load lane load disparity multi-truck presence weigh-in-motion data
Major bridge projects——a multi-disciplinary approach
Klaus H. OSTENFELD, Erik Y. ANDERSEN
《结构与土木工程前沿(英文)》 2011年 第5卷 第4期 页码 479-495 doi: 10.1007/s11709-011-0137-3
关键词: bridges materials climate risk safety environment socioeconomics traffic CO2 energy life cycle society aesthetics
基于张量因子分解框架的航班延误模式分析 Article
张明远, 陈莘文, 孙立君, 杜文博, 曹先彬
《工程(英文)》 2021年 第7卷 第4期 页码 465-472 doi: 10.1016/j.eng.2020.08.024
在空中交通管理和民航机场运营过程中,从过去的运营中获得的经验对于设计合理的策略至关重要。因此,本文使用大量时空飞行数据来识别相似的航空交通和延误模式,这对于更好地了解航空系统和制订管理决策至关重要。但是,由于数据集隐含了复杂的依赖关系以及高维时空之间的交互作用,因此挖掘数据中的重要特征和模式非常具有挑战性。本文提出了高维历史飞行数据的张量因子分解框架。我们通过潜在类别分析模型,并使用2014—2017年中国224个机场的空中交通运行数据证明了该框架的有效性。研究发现每个维度可以清晰地代表不同的运行模式。为了证明这些模式的有效性,我们创建了一个估计模型,该模型可实现对航班延误程度的初步判断。上述结果可以根据历史情景获得的经验,帮助机场运营商和空中交通管理人员更好地了解空中交通和延误模式。
Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 490-497 doi: 10.15302/J-FEM-2017008
关键词: floating car data map matching three phase traffic theory traffic reconstruction traffic service quality navigation systems
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1301-1316 doi: 10.1007/s11709-021-0765-1
A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms
Soheil ZARKANDI
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 344-353 doi: 10.1007/s11465-014-0320-z
This paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (two-DOF) spherical mechanisms (SMs) with seven links or bars. For two-DOF SMs, the secondary instantaneous poles (the ones which cannot be found by direct inspection) must lie on the specified great circles. For many of these mechanisms, however, some of these great circles cannot be obtained by a direct application of Aronhold-Kennedy theorem. This paper presents geometrical and analytical techniques to locate these unknown great circles for three topologies of seven-bar two-DOF SMs.
关键词: spherical mechanisms instantaneous poles Aronhold-Kennedy theorem great circles pencil of meridian
Percolation-based health management of complex traffic systems
《工程管理前沿(英文)》 2021年 第8卷 第4期 页码 557-571 doi: 10.1007/s42524-021-0174-0
关键词: traffic health health management critical infrastructure systems science and engineering
Shiyan ZHENG
《能源前沿(英文)》 2011年 第5卷 第4期 页码 367-375 doi: 10.1007/s11708-011-0170-x
关键词: internal combustion engine irreversibility power output efficiency optimization
Semantic Consistency and Correctness Verification of Digital Traffic Rules
Lei Wan,Changjun Wang,Daxin Luo,Hang Liu,Sha Ma,Weichao Hu,
《工程(英文)》 doi: 10.1016/j.eng.2023.04.016
关键词: Autonomous driving Traffic rules Digitization Formalization Verification
Fine-grained P2P traffic classification by simply counting flows
Jie HE,Yue-xiang YANG,Yong QIAO,Wen-ping DENG
《信息与电子工程前沿(英文)》 2015年 第16卷 第5期 页码 391-403 doi: 10.1631/FITEE.1400267
关键词: Traffic classification Peer-to-peer (P2P) Fine-grained Host-based
标题 作者 时间 类型 操作
Multi-class dynamic network traffic flow propagation model with physical queues
Yanfeng LI, Jun LI
期刊论文
Identification of thermal error in a feed system based on multi-class LS-SVM
Chao JIN, Bo WU, Youmin HU, Yao CHENG
期刊论文
崔素萍:多类别废物原料水泥低碳设计制备与应用(2021年5月21日)
2021年11月26日
会议视频
A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities
期刊论文
Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and theresulting traffic service
Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER
期刊论文
Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane
期刊论文
A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms
Soheil ZARKANDI
期刊论文
Unified cycle model of a class of internal combustion engines and their optimum performance characteristics
Shiyan ZHENG
期刊论文
Semantic Consistency and Correctness Verification of Digital Traffic Rules
Lei Wan,Changjun Wang,Daxin Luo,Hang Liu,Sha Ma,Weichao Hu,
期刊论文