检索结果-内蒙古大学图书馆

Reference Architecture and Agile Development Method for a Process-Driven Web Platform based on the BPMN-Standard and Process Engines 9

Reference Architecture and Agile Development Method for a Pr...

引用

9th CIRP Global Web Conference on Sustainable, Resilient, and Agile Manufacturing and Service Operations: Lessons from COVID-19, CIRPe 2021

作者： Schäffer, Eike Schobert, Marvin Reichenstein, Tobias Selmaier, Andreas Stiehl, Volker Herhoffer, Markus Mala, Matus Franke, Jörg Institute for Factory Automation and Production Systems Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstr. 7 Erlangen91058 Germany Exentra GmbH Löwenstr. 11 Pfaffenhofen an der Ilm85276 Germany Flowable Germany GmbH Schloßstr. 70 Stuttgart70176 Germany Faculty of Computer Science Ingolstadt University of Technology Esplanade 10 Ingolstadt85049 Germany

One of the major trends in the 21st century is the trend towards digital transformation within Industry 4.0. In order to adapt to high volatile market conditions, especially in the context of COVID-19, companies do not only have to transfer their knowledge into digital systems. Furthermore, they have to be able to tailor their business processes rapidly to changing customer's needs. The implementation of efficient and transparent processes is thereby known as the process of digital transformation and requires its underlying software-architecture to be highly flexible and scalable. Especially a web-based platform represents a highly user-centered application for multi-user purposes and can quickly adapt to its customer needs. While e-commerce and video-streaming platforms, like eBay or Netflix, often already provide a highly flexible, microservice-based architecture, common tools and platforms within the engineering-domain are usually still based on rather monolithic or service-oriented architectures (SOA). Therefore, an adaption to changing market conditions and the integration of proprietary tools is often technically demanding and economically not feasible, especially for small and medium-sized enterprises (SME). In this context, the so-called Process-Driven-Approach (PDA) offers a sustainable and tool-neutral blue-print for a system's architecture strictly following the separations-of-concerns principle and allowing a user-centered layout. The PDA enables the integration of business processes and tools within an orchestrating framework, provided by a process engine. While the PDA within the engineering domain has been presented in a preceding paper, this paper supposes a reference architecture and agile development method for engineering-platforms via the PDA based on the BPMN-standard and process engines. These concepts are validated by a prototypical implementation of a platform-demonstrator for tool-supported planning of robot-based automation solutions. © 202

关键词： Service oriented architecture (SOA)

来源：评论

学校读者我要写书评

暂无评论

Developing and validating measures for AI literacy tests: From self-reported to objective measures

引用

computers and Education: Artificial Intelligence 2024年 7卷

作者： Chiu, Thomas K.F. Chen, Yifan Yau, King Woon Chai, Ching-sing Meng, Helen King, Irwin Wong, Savio Yam, Yeung Department of Curriculum and Instruction Faculty of Education and Centre for Learning Sciences and Technologies And Centre for University and School Partnership the Chinese University of Hong Kong SAR ShatinNT Hong Kong Faculty of Engineering The Chinese University of Hong Kong SAR ShatinNT Hong Kong Faculty of Education The Chinese University of Hong Kong SAR ShatinNT Hong Kong Department of Systems Engineering and Engineering Management The Chinese University of Hong Kong SAR ShatinNT Hong Kong Department of Computer Science & Engineering The Chinese University of Hong Kong SAR ShatinNT Hong Kong Department of Educational Psychology The Chinese University of Hong Kong SAR ShatinNT Hong Kong Department of Mechanical and Automation Engineering The Chinese University of Hong Kong SAR ShatinNT Hong Kong

The majority of AI literacy studies have designed and developed self-reported questionnaires to assess AI learning and understanding. These studies assessed students' perceived AI capability rather than AI literacy because self-perceptions are seldom an accurate account of true measures. International assessment programs that use objective measures to assess science, mathematical, digital, and computational literacy back up this argument. Furthermore, because AI education research is still in its infancy, the current definition of AI literacy in the literature may not meet the needs of young students. Therefore, this study aims to develop and validate an AI literacy test for school students within the interdisciplinary project known as AI4future. Engineering and education researchers created and selected 25 multiple-choice questions to accomplish this goal, and school teachers validated them while developing an AI curriculum for middle schools. 2390 students in grades 7 to 9 took the test. We used a Rasch model to investigate the discrimination, reliability, and validity of the items. The results showed that the model met the unidimensionality assumption and demonstrated a set of reliable and valid items. They indicate the quality of the test items. The test enables AI education researchers and practitioners to appropriately evaluate their AI-related education interventions. © 2024 The Authors

关键词： AI literacy Instrument K-12 education AI education Co-design process Measures

来源：评论

学校读者我要写书评

暂无评论

Developing an AI literacy test for junior secondary students: The first stage 11

Developing an AI literacy test for junior secondary students...

引用

11th IEEE International Conference on Teaching, Assessment and Learning for Engineering, TALE 2022

作者： Yau, King Woon Chai, Ching Sing Chiu, Thomas K. F. Meng, Helen King, Irwin Wong, Savio Wai-Ho Saxena, Chandni Yam, Yeung The Chinese University of Hong Kong Shatin Faculty of Engineering Hong Kong Hong Kong The Chinese University of Hong Kong Shatin Department of Curriculum and Instruction Hong Kong Hong Kong The Chinese University of Hong Kong Shatin Department of Systems Engineering and Engineering Management Hong Kong Hong Kong The Chinese University of Hong Kong Shatin Department of Computer Science and Engineering Hong Kong Hong Kong The Chinese University of Hong Kong Shatin Department of Educational Psychology Hong Kong Hong Kong The Chinese University of Hong Kong Shatin Department of Mechanical and Automation Engineering Hong Kong Hong Kong

ISBN: (纸本)9781665491174

Artificial Intelligence (AI) education for K-12 is increasingly important as the emerging AI technologies are pervasively infused into human daily lives. Eleven countries have endorsed and implemented the AI curricula at K-12 levels [1]. The "Five Big Ideas"about AI, as proposed by the Association for the Advancement of Artificial Intelligence (AAAI) and the computer Science Teacher Association (CSTA) have emerged to form the core components of K-12 AI education [2], [3]. However, the assessment of students' learning in AI education for K-12 is still in its initial stage. Surveys and interviews are the major assessing tools based on students' self- perceptions. Standardized tests on students' AI literacy are still rare. This paper focuses on the first stage of an AI literacy test based on the Five Big Ideas for Grade 7 to Grade 9 students. The test aims to measure the changes of students' AI literacy before and after attending a one-year AI course. The preliminary findings show the students have increased in their AI literacy after attending the course. The test can provide insights for understanding students' competencies and needs in AI literacy and improving the curriculum guidelines for students' effective learning. © 2022 IEEE.

关键词： Artificial intelligence

来源：评论

学校读者我要写书评

暂无评论

Time Delay Estimation with Fixed-time SMC Scheme for Nonlinear Dynamics

Time Delay Estimation with Fixed-time SMC Scheme for Nonline...

引用

International Conference on Control, automation and Diagnosis (ICCAD)

作者： Saim Ahmed Ahmad Taher Azar Arezki Fekik Haoping Wang Chakib Ben Njima College of Computer and Information Sciences Prince Sultan University Riyadh Saudi Arabia Automated Systems and Soft Computing Lab (ASSCL) Prince Sultan University Riyadh Saudi Arabia Faculty of Computers and Artificial Intelligence Benha University Benha Egypt Department of Electrical Engineering University Akli Mohand Oulhadj-Bouria Rue Drissi Yahia Bouira Algeria CNRS LS2N UMR 6004 Nantes Université École Centrale Nantes Nantes France School of Automation Nanjing University of Science and Technology China University of Sousse Tunisia

ISBN: (数字)9798350361025

ISBN: (纸本)9798350361032

Time delay estimation using fixed-time terminal sliding mode control (TDEFxSMC) for unknown nonlinear systems with uncertainty and external disturbances is presented in this study. Firstly, the notion of fixed-time terminal sliding mode control (FxSMC) is outlined and thoroughly examined. Using the FxSMC scheme, nonsingular fixed-time control, non-chatter control inputs, and high performance tracking positions have been achieved. To estimate the unknown dynamics, proposed method incorporates a TDE scheme. The Lyapunov theorem is applied to find whether the proposed system can achieve its stability in a fixed-time. The effectiveness of the suggested method is evaluated and demonstrated by presenting the results of the proposed method implemented to the nonlinear robot dynamics.

关键词： Uncertainty automation Delay effects Estimation 2-DOF Stability analysis Nonlinear dynamical systems

来源：评论

学校读者我要写书评

暂无评论

Process-Driven Approach within the Engineering Domain by Combining Business Process Model and Notation (BPMN) with Process Engines

引用

Procedia CIRP 2021年 96卷 207-212页

作者： Eike Schäffer Volker Stiehl Peter K. Schwab Andreas Mayr Josef Lierhammer Jörg Franke Institute for Factory Automation and Production Systems Friedrich-Alexander University Erlangen-Nuremberg Egerlandstr. 7 Erlangen 91058 Germany Faculty of Computer Science Ingolstadt University of Technology Esplanade 10 85049 Ingolstadt Germany Chair of Computer Science 6 (Data Management) Friedrich-Alexander University Erlangen-Nuremberg Martensstraße 3 Erlangen 91058 Germany

Digitization within the framework of Industry 4.0 is considered the biggest and fastest driver of change in history of manufacturing industry. While the size of a company is becoming less essential, the ability to adapt quickly to changing market conditions and new technologies is more important than ever. This trend particularly applies to the companies’ software landscapes, where individual sub-processes and services must be orchestrated, seamlessly integrated, and iteratively renewed according to the ever-increasing user requirements. However, inflexible, closed monolithic software applications as well as self-programmed stand-alone tools that are difficult to integrate are still predominant in the engineering domain. A complete reimplementation of existing, proprietary engineering tools and their integration into monolithic applications of large software providers is often not economically feasible, especially for small and medium-sized machinery and plant manufacturers. In this context, the so-called Process-Driven Approach (PDA) offers a sustainable and tool-neutral opportunity for process and tool orchestration, enabling an easy integration of individual software applications by consistent utilization of the separation of concerns principle. The PDA, originating from business informatics, is mainly based on the standardized and machine-executable visual modeling language Business Process Model and Notation (BPMN). Using the semantic enhancements found in version 2.0, BPMN is not just used to model the business processes but also to model and execute the integration processes between different systems. After the PDA has already been successfully applied to large-scale projects in business informatics, it is now being transferred to the engineering domain. As shown in this paper, PDA allows to orchestrate the different processes in engineering and to integrate the underlying software tools, such as e-mail or spreadsheet applications, engineering tools, or custo

关键词： Process-Driven Approach PDA BPMN engineering process engine architecture orchestration Industry 4.0

来源：评论

学校读者我要写书评

暂无评论

Data-driven leak localization in water distribution networks via dictionary learning and graph-based interpolation

arXiv

引用

arXiv 2021年

作者： Irofti, Paul Romero-Ben, Luis Stoican, Florin Puig, Vicenç Department of Computer Science Faculty of Mathematics and Computer Science University of Bucharest Romania Institut de Robòtica i Informàtica Industrial Universitat Politècnica de Catalunya Barcelona Spain Politehnica University of Bucharest Dept. of Automation Control and Systems Engineering Romania

In this paper, we propose a data-driven leak localization method for water distribution networks (WDNs) which combines two complementary approaches: graph-based interpolation and dictionary classification. The former estimates the complete WDN hydraulic state (i.e., hydraulic heads) from real measurements at certain nodes and the network graph. Then, these actual measurements, together with a subset of valuable estimated states, are used to feed and train the dictionary learning scheme. Thus, the meshing of these two methods is explored, showing that its performance is superior to either approach alone, even deriving different mechanisms to increase its resilience to classical problems (e.g., dimensionality, interpolation errors, etc.). The approach is validated using the L-TOWN benchmark proposed at BattLeDIM2020. Copyright © 2021, The Authors. All rights reserved.

关键词： Water distribution systems

来源：评论

学校读者我要写书评

暂无评论

Formation control with obstacle avoidance of second-order multi-agent systems under directed communication topology

引用

Science China(Information Sciences) 2019年第9期62卷 144-157页

作者： Guoxing WEN C.L.Philip CHEN Hui DOU Hongli YANG Chunfang LIU College of Science Binzhou University Department of Computer and Information Science Faculty of Science and Technology University of Macau College of Navigation Dalian Maritime University State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of Sciences Mathematics and Systems Science College Shandong University of Science and Technology

This paper addresses the obstacle avoidance problem of formation control for the multi-agent systems modeled by double integrator dynamics under a directed interconnection topology. The control task is finished by a leader-follower formation scheme combined with an artificial potential field(APF) *** leader-follower scheme is carried out by taking the desired trajectory with the desired velocity as virtual leader, while the APF method is carried out by dealing with the obstacles as the high potential points. When the obstacle avoidance tasks are finished, the artificial potential forces degrade the formation performance, so their undesired effects are treated as disturbances, which is analyzed by the robust H∞performance. Based on Lyapunov stability theory, it is proved that the proposed formation approach can realize the control objective. The result is also extended to the switching multi-agent formation. The effectiveness of the proposed formation scheme is further confirmed by simulation studies.

关键词： formation control obstacle avoidance artificial potential field method H_∞ performance second-order multi-agent system directed topology

来源：评论

学校读者我要写书评

暂无评论

The applied principles of EEG analysis methods in neuroscience and clinical neurology

引用

Military Medical Research 2024年第6期11卷 907-941页

作者： Hao Zhang Qing-Qi Zhou He Chen Xiao-Qing Hu Wei-Guang Li Yang Bai Jun-Xia Han Yao Wang Zhen-Hu Liang Dan Chen Feng-Yu Cong Jia-Qing Yan Xiao-Li Li School of Systems Science Beijing Normal UniversityBeijing 100875China College of Electrical and Control Engineering North China University of TechnologyBeijing 100041China School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641China Department of Psychology the State Key Laboratory of Brain and Cognitive Sciencesthe University of Hong KongHong Kong SAR 999077China HKU-Shenzhen Institute of Research and Innovation Shenzhen 518057GuangdongChina Department of Health Technology and Informatics the Hong Kong Polytechnic UniversityHong Kong SAR 999077China Department of Rehabilitation Medicine the First Afliated Hospital of Nanchang UniversityNanchang 330006China Rehabilitation Medicine Clinical Research Center of Jiangxi Province Nanchang 330006China Beijing Key Laboratory of Learning and Cognition School of PsychologyCapital Normal UniversityBeijing 100048China School of Communication Science Beijing Language and Culture UniversityBeijing 100083China Institute of Electrical Engineering Yanshan UniversityQinhuangdao 066004HebeiChina School of Computer Science Wuhan UniversityWuhan 430072China School of Biomedical Engineering Faculty of Electronic Information and Electrical EngineeringDalian University of TechnologyDalian 116081LiaoningChina Guangdong Artifcial Intelligence and Digital Economy Laboratory(Guangzhou) Guangzhou 510335China.

Electroencephalography(EEG)is a non-invasive measurement method for brain *** to its safety,high resolution,and hypersensitivity to dynamic changes in brain neural signals,EEG has aroused much interest in scientific research and medical *** article reviews the types of EEG signals,multiple EEG signal analysis methods,and the application of relevant methods in the neuroscience feld and for diagnosing neurological ***,3 types of EEG signals,including time-invariant EEG,accurate event-related EEG,and random event-related EEG,are ***,5 main directions for the methods of EEG analysis,including power spectrum analysis,time-frequency analysis,connectivity analysis,source localization methods,and machine learning methods,are described in the main section,along with diferent sub-methods and effect evaluations for solving the same ***,the application scenarios of different EEG analysis methods are emphasized,and the advantages and disadvantages of similar methods are *** article is expected to assist researchers in selecting suitable EEG analysis methods based on their research objectives,provide references for subsequent research,and summarize current issues and prospects for the future.

关键词： Electroencephalogram analysis methods Applied principles Neuroscience Diagnosis Neurological diseases

来源：评论

学校读者我要写书评

暂无评论

A Global Asymptotically Stable Nonlinear Robust Bias Observer for MEMS Gyros

TechRxiv

引用

TechRxiv 2022年

作者： Tang, Ning Chang, Jieling Wang, Lingling Fu, Li Neusypin, Konstantin A. Selezneva, Maria S. Peng, Linping The School of Automation Science and Electrical Engineering Beihang University Beijing100191 China The Faculty of Computer Science and Control Systems Bauman Moscow State Technical University Moscow105005 Russia Experimental Teaching Demonstration Center of Mechanical and Control Engineering Beihang University Beijing100191 China The School of Mathematics and System Sciences Beihang University Beijing100191 China

In practical applications, commercial-grade Micro-Electro-Mechanical System (MEMS) gyros tend to exhibit dynamics sensitivities which are resistant to modeling by linear drift. To address the problem, a new nonlinear robust bias observer (NRBO) is proposed in this paper. Unlike the existing attitude and gyro bias nonlinear observers, we propose a dynamics-sensitive gyro bias decomposition method to tackle unknown nonlinear dynamic models of MEMS gyro bias. We expose the potential advantages of the proposed method: the global asymptotic stability of the NBRO and the robustness to the bias instability of MEMS gyros can be guaranteed through a rational design of the attitude-angular rate nonlinear dynamic coupling (AARNDC) term and the attitude-linear coupling (ALC) term. In addition, the attitude estimation with bias correction is given in the framework of NBRO. The experiment of a cable-parallel robot demonstrate the robustness to the bias instability and the accuracy improvement of MEMS gyros. © 2022, CC BY.

关键词： Gyroscopes

来源：评论

学校读者我要写书评

暂无评论

The Neural Network for Vertical Handover Procedure

The Neural Network for Vertical Handover Procedure

引用

International Scientific-Practical Conference Problems of Infocommunications Science and Technology

作者： Olena Semenova Andriy Semenov Olha Voitsekhovska Dmytro Kozin Vinnytsia National Technical University Vinnytsia Ukraine Faculty for Computer Systems and Automation Vinnytsia National Technical University Vinnytsia Ukraine

The paper suggests to apply a neural network in cellular networks in order to improve the vertical handover process. The proposed neural network is a multilayer perceptron. The paper presents the proposed architecture of the neural network. The operation of the perceptron has been described. Simulation of the neural network operation in Matlab software was performed.

关键词： Cellular networks Wireless networks Neural networks Software algorithms Handover Multilayer perceptrons Software

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：