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IN2CLOUD: A novel concept for collaborative management of big railway data

Jing LIN, Uday KUMAR

《工程管理前沿（英文）》 2017年第4卷第4期页码 428-436 doi: 10.15302/J-FEM-2017048

摘要： In the EU Horizon 2020 Shift2Rail Multi-Annual Action Plan, the challenge of railway maintenance is generating knowledge from data and/or information. Therefore, we promote a novel concept called “IN2CLOUD,” which comprises three sub-concepts, to address this challenge: 1) A hybrid cloud, 2) an intelligent cloud with hybrid cloud learning, and 3) collaborative management using asset-related data acquired from the intelligent hybrid cloud. The concept is developed under the assumption that organizations want/need to learn from each other (including domain knowledge and experience) but do not want to share their raw data or information. IN2CLOUD will help the movement of railway industry systems from “local” to “global” optimization in a collaborative way. The development of cutting-edge intelligent hybrid cloud-based solutions, including information technology (IT) solutions and related methodologies, will enhance business security, economic sustainability, and decision support in the field of intelligent asset management of railway assets.

关键词： railway intelligent asset management collaborative learning big data hybrid cloud Bayesian

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社会计算下的协作学习 None

Ricardo S. ALONSO, Javier PRIETO, Óscar GARCÍA, Juan M. CORCHADO

《信息与电子工程前沿（英文）》 2019年第20卷第2期页码 265-282 doi: 10.1631/FITEE.1700840

摘要：技术的引入使得教育创新极大地丰富起来，从而形成新的学习模型，其中，信息来自于多源，协作在学生之间产生。教育创新中一个有吸引力的挑战在于从社会计算视角设计协作学习活动，这里的协作不限于学生之间，也包括学生与机器的交互。与此同时，现阶段极其缺少工具，为学习的全过程而非学习任务的某些方面提供支持。为此，本文提出并评估支持协作学习的上下文感知构架（CAFCLA）。CAFCLA是一个覆盖协作学习全过程活动开发的灵活架构，可以利用上下文信息和社交互动。应用于某个博物馆的一个协作式WebQuest实验案例表明，使用社会计算可以改善学习过程，促进协作，增强关系，增加参与度。

关键词：上下文感知；协作学习；社会计算；虚拟组织；无线传感器网络；实时定位系统

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An application of game theory in distributed collaborative decision making

Angran XIAO

《机械工程前沿（英文）》 2019年第14卷第1期页码 85-101 doi: 10.1007/s11465-019-0523-4

摘要： In a distributed product realization environment, new paradigms and accompanying software systems are necessary to support the collaborative work of geographically dispersed engineering teams from different disciplines who have different knowledge, experience, tools and resources. To verify the concept of collaboration by separation, we propose a generic information communication medium to enable knowledge representation and exchange between engineering teams, a digital interface. Across digital interfaces, each engineering team maintains its own perspective towards the product realization problem, and each controls a subset of design variables and seeks to maximize its own payoff function subject to individual constraints. Hence, we postulate the use of principles from game theory to model the relationships between engineering teams and facilitate collaborative decision making without causing unnecessary information exchange or iteration across digital interfaces. A product design and manufacturing scenario is introduced to demonstrate the efficacy of using game theory to maintain a clean interface between design and manufacturing teams.

关键词： collaboration distributed product realization game theory digital interface

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基于TLBO算法的不确定性条件下复杂产品协同设计的可靠性拓扑优化

洪兆溪, 蒋翔宇, 冯毅雄, 田钦羽, 谭建荣

《工程（英文）》 2023年第22卷第3期页码 71-81 doi: 10.1016/j.eng.2021.06.027

摘要：

复杂产品的拓扑优化设计可以显著改善材料和节能，有效地降低惯性力和机械振动。本研究选择了一种大吨位液压机作为典型的复杂产品，用以表述这种优化方法。基于可靠性和优化解耦模型与基于教与学优化（TLBO）算法，本文提出了一种可靠性拓扑优化方法。将由板系结构形成的支撑物作为拓扑优化对象，具有轻量化和稳定性好的特点。将某种不确定性下的可靠性优化和结构拓扑优化协同处理。首先，利用有限差分法将优化问题中的不确定性参数修正为确定性参数。然后，将不确定性可靠性分析和拓扑优化的复杂嵌套解耦。最后，利用TLBO算法求解解耦模型。该算法参数少，求解速度快。TLBO算法采用了自适应教学因子，在初始阶段实现了更快的收敛速度，并在后期阶段进行了更精细的搜索。本文给出了一个液压机基板结构的数值实例，验证了该方法的有效性。

关键词：板系结构可靠性协同拓扑优化教与学优化算法不确定性产品生命周期的协同设计

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Collaborative adoption of blockchain technology: A supply chain contract perspective

《工程管理前沿（英文）》页码 121-142 doi: 10.1007/s42524-022-0239-8

摘要： The outbreak of COVID-19 has significantly affected the development of enterprises. In the post-pandemic era, blockchain technology has become one of the important technologies to help enterprises quickly gain market competitiveness. The heavy investment required of supply chain stakeholders to employ blockchain technology has hindered its adoption and application. To tackle this issue, this study aims to facilitate the adoption of blockchain technology in a supply chain consisting of a core enterprise and a small/medium-sized enterprise through an effective supply chain contract. We analyze the performance of a cost-sharing (CS) contract and a revenue-sharing (RS) contract and propose a new hybrid CS-RS contract for better performance. We conduct comparative analyses of the three contracts and find that the hybrid CS-RS contract can more effectively incentivize both parties to reach the highest level of blockchain technology adoption and achieve supply chain coordination.

关键词： blockchain collaborative adoption cost sharing revenue sharing hybrid contract

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联邦相互学习：一种针对异构数据、模型和目标的协同机器学习方法 Research Article

沈弢1,张杰2,贾鑫康2,张凤达1,吕喆奇1,况琨1,吴超3,吴飞1

《信息与电子工程前沿（英文）》 2023年第24卷第10期页码 1390-1402 doi: 10.1631/FITEE.2300098

摘要：联邦学习（FL）是深度学习中的一种新技术，可以让客户端在保留各自隐私数据的情况下协同训练模型。然而，由于每个客户端的数据分布、算力和场景都不同，联邦学习面临客户端异构环境的挑战。现有方法（如FedAvg）无法有效满足每个客户的定制化需求。为解决联邦学习中的异构挑战，本文首先详述了数据、模型和目标（DMO）这3个主要异构来源，然后提出一种新的联邦相互学习（FML）框架。该框架使得每个客户端都能训练一个考虑到数据异构（DH）的个性化模型。在模型异构（MH）问题上，引入一种“模因模型”作为个性化模型与全局模型之间的中介，并且采用深度相互学习（DML）的知识蒸馏技术在两个异构模型之间传递知识。针对目标异构（OH）问题，通过共享部分模型参数，设计针对特定任务的个性化模型，同时，利用模因模型进行相互学习。本研究通过实验评估了FML在应对DMO异构性方面的表现，并与其他常见FL方法在相似场景下进行对比。实验结果表明，FML在处理FL环境中的DMO问题的表现卓越，优于其他方法。

关键词：联邦学习；知识蒸馏；隐私保护；异构环境

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实现隐私保护个性化推荐服务 Review

王聪, 郑宜峰, 蒋精华, 任奎

《工程（英文）》 2018年第4卷第1期页码 21-28 doi: 10.1016/j.eng.2018.02.005

摘要：

推荐系统对于向用户提供个性化服务至关重要。通过个性化的推荐服务，用户可以享受各种有针对性的推荐，如电影、书籍、广告、餐馆等。此外，个性化推荐服务极大地推动了在线业务收入的增长。尽管存在诸多好处，但采用个性化推荐服务通常需要收集用户的个人数据以进行处理和分析，会让用户怀疑个人隐私遭到严重侵犯。因此，在尊重用户隐私的前提下开发实用的隐私保护技术来维护个性化推荐服务提供的数据尤为重要。在本文中，我们提供了与隐私保护的个性化推荐服务相关文献的综合调查。我们介绍了个性化推荐系统的总体架构、其中的隐私问题以及集中于隐私保护个性化推荐服务的现有研究。根据个性化推荐和隐私保护的核心支撑技术，我们对现有研究进行了分类，并对其优缺点进行了深入的讨论和对比，特别是针对隐私和推荐的准确性。与此同时，我们也确定了一些未来的研究方向。

关键词：隐私保护个性化推荐服务针对性推送协同过滤机器学习

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Study on affecting factors of collaborative product development based on collaboration hierarchy model

ZHANG Xiaodong, LI Yingzi, ZHANG Zhiqiang

《机械工程前沿（英文）》 2007年第2卷第2期页码 210-213 doi: 10.1007/s11465-007-0036-4

摘要： Aiming at the levels of collaborative degree in web-based product development, a collaboration hierarchy model of this product development is developed in this paper. Based on the model, the affecting factors on collaboration levels are analyzed systematically from many aspects, such as technology, organization and business. A gap analysis method is studied in detail, and is applied in a real project. The application shows that it can solve the diverse problems of collaborative product development effectively, and help enterprises find out the critical factors that affect the collaboration.

关键词： development web-based business collaborative collaboration hierarchy

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Basic model study on efficiency evaluation in collaborative design work process

XIE Qiu, YANG Yu, LI Xiaoli, ZHAO Ningyu

《机械工程前沿（英文）》 2007年第2卷第3期页码 344-349 doi: 10.1007/s11465-007-0060-4

摘要： During the efficiency evaluation process of collaborative design work, because of the lack of efficiency evaluation models, a basic analytical model for collaborative design work efficiency evaluation is proposed in this paper. First, the characteristics of the networked collaborative design system work process were studied; then, in accordance with those characteristics, a basic analytical model is created. This model, which is built for centralized collaborative design work, includes an analytical frame, a process view model, a function view model and an information view model. Finally, the application process and steps of this basic analytical model are elaborated when used for efficiency evaluation through an experiment.

关键词： function system work evaluation process efficiency evaluation design work

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Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

《机械工程前沿（英文）》 2020年第15卷第1期页码 66-80 doi: 10.1007/s11465-019-0570-x

摘要： The parallel spindle heads with high rotational capability are demanded in the area of multi-axis machine tools and 3D printers. This paper focuses on designing a class of 2R1T (R: Rotation; T: Translation) parallel spindle heads and the corresponding collaborative 5-axis manipulators with 2-dimension (2D) large rotational angles. In order to construct 2D rotational degrees of freedom (DOF), a platform with 2-dimension revolute joints is proposed first. Based on the constraint screw theory, the feasible limbs that can be connected in the platform are synthesized. In order to provide constant rotational axis for the platform, a class of redundant limbs are designed. A class of redundant 2R1T parallel spindle heads is obtained by connecting the redundant limbs with the platform and the redundant characteristics are verified by the modified Grübler-Kutzbach criterion. The corresponding 5-axis collaborative manipulators are presented by constructing a 2-DOF series translational bottom moving platform. The inverse kinematics and the orientation workspace as well as the decoupling characteristics of this type of 2R1T parallel spindle heads are analyzed. The results show that these manipulators have large 2D rotational angles than the traditional A3/Z3 heads and can be potentially used in the application of multi-axis machine tools and the 3D printers.

关键词： parallel mechanism redundant mechanism large rotational angles machine tools 2R1T spindle head collaborative manipulator

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轮胎动力学协同发展策略研究

郭孔辉,卢荡,吴海东

《中国工程科学》 2018年第20卷第1期页码 91-96 doi: 10.15302/J-SSCAE-2018.01.013

摘要：

在汽车及飞机的自主发展中，轮胎动力学是个重要瓶颈。本文对比了国内外轮胎动力学的发展状况，指出面临当前愈加激烈的国际竞争，我国轮胎动力学的发展存在较大挑战。笔者在分析了轮胎动力学测试、仿真及应用技术的特点后，提出了协同发展我国轮胎动力学的策略及建议。

关键词：轮胎动力学汽车飞机协同发展策略

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Semantics for linking data from 4D BIM to digital collaborative support

Calin BOJE, Veronika BOLSHAKOVA, Annie GUERRIERO, Sylvain KUBICKI, Gilles HALIN

《工程管理前沿（英文）》 2022年第9卷第1期页码 104-116 doi: 10.1007/s42524-020-0111-7

摘要： Synchronous collaboration sessions within the context of 4D BIM position construction professionals into a complex socio–technical system. This system includes hardware, software, people, and broader community aspects. This article strictly focuses on the ontology representation of synchronous collaboration sessions with collocated collective decision-making. The model is designed by considering various 4D BIM model uses while a digital multiuser touch table facilitates the collaboration between actors. The outlined ontological model aims to improve interoperability and to move toward a knowledge-driven, smart-built environment paradigm. A knowledge engineering methodology is outlined, by virtue of which the semantics of the presented model are defined and discussed. Concepts from nearby knowledge fields, especially from the Industry Foundation Classes, are reused. Several examples on querying the knowledge base according to the project meeting requirements are outlined to demonstrate the benefits of using the model. Although 4D BIM model data can be imported by using standard formats, capturing data about the social context remains a challenge in the future. This is expected to change the ontology model structure by considering user ergonomics, data modeling requirements, as well as technical implementation constraints.

关键词： 4D BIM ontology IFC decision-making linked data collaboration planning

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Identifying stakeholders’ roles and relevant project documents for 4D-based collaborative decision making

Veronika BOLSHAKOVA, Annie GUERRIERO, Gilles HALIN

《工程管理前沿（英文）》 2020年第7卷第1期页码 104-118 doi: 10.1007/s42524-019-0041-4

摘要： To fully understand and effectively implement 4D building information modelling (BIM) models and methods, we need to develop a precise knowledge of which project digital documents should be used and how they influence the decision-making (DM) process. This article studies the convergence between uses of 4D BIM and digital project documents. We hypothesize that a clear visualization of the construction simulation through a 4D model is a useful source of information and a support for DM at collaborative meetings. Through this research, we continue to progress toward a new 4D-based collective decision device, so these elements will contribute to propose 4D BIM as DM support on architecture engineering construction (AEC) projects. Further, the present research will be complemented by results from questionnaires given at a later research stage. The article presents a brief review of BIM context to consider ways of fostering the implementation of all 4D BIM uses (not only visualization). It then introduces a proposition for 4D BIM uses implementation by the project development phase. It concludes by summarizing stakeholders’ roles and documents relevant to 4D BIM uses.

关键词： BIM 4D BIM 4D BIM use AEC project management collaboration decision making

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A metadata model for collaborative experiments and simulations in earthquake engineering

Jean-Pierre BARDET, Nazila MOKARRAM, Fang LIU

《结构与土木工程前沿（英文）》 2010年第4卷第2期页码 133-153 doi: 10.1007/s11709-010-0036-z

摘要： Research projects in earthquake engineering yield a very large amount of complex data from experiments and computer simulations. Understanding and exchanging these complicated and voluminous data sets prompted the development of metadata models that document the processes of data generation, and facilitate the collaboration and exchange of information between researchers. The present metadata model was designed to document and exchange a large number of large data files in earthquake engineering, but is applicable to other fields of engineering and science. The model was conceived based on a series of former data models, which were unduly complicated and limited to few types of experiments. Simpler than its predecessors, the present metadata model applies to all kinds of earthquake engineering experiments. It was developed in the object-oriented framework using Protégé. Its applications are illustrated with examples from centrifuge experiments.

关键词： metadata data documentation experiment simulation

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中国钢铁工业减污降碳协同控制技术发展与展望 Review

朱廷钰, 刘霄龙, 王新东, 贺泓

《工程（英文）》 2023年第31卷第12期页码 37-49 doi: 10.1016/j.eng.2023.02.014

摘要：

As the largest steel-producing country, China’s steel industry has experienced rapid development in terms of production level and quality. Owing to the high consumption of coal in the iron and steel industry, air pollutants and carbon dioxide (CO₂) show similar emission properties in flue gas. In view of the collaborative reduction of pollution and carbon emissions, the emission standards for pollutants and carbon were first analyzed, suggesting that carbon emission standards for the iron and steel industry should be accelerated. A collaborative technology system for the reduction of pollution and carbon emissions from the iron and steel industry in China is demonstrated, consisting of ① optimization of present ultra-low emission technology, ② low-carbon innovation for present production processes, ③ steel production process reengineering, and ④ carbon capture, utilization, and storage (CCUS). Finally, the technical prospect for collaborative reduction of pollution and carbon emissions from the iron and steel industry in China is suggested to support high-quality green development in this industry.

关键词： Iron and steel industry Pollution Carbon emissions Collaborative reduction