检索结果-内蒙古大学图书馆

Performing Automated Experiments with EJsS Laboratories

IFAC-PapersOnLine 2015年第29期48卷 134-139页

作者： Galan, Daniel Heradio, Ruben Torre, Luis De La Dormido, Sebastian Esquembre, Francisco Dept. of Computer Science and Automatic Control Universidad Nacional de Educación A Distancia Juan Del Rosal 16 MadridE-28040 Spain Dept. of Software Engineering and Computer Systems Universidad Nacional de Educación A Distancia Juan del Rosal 16 MadridE-28040 Spain Dept. of Mathematics Universidad de Murcia Campus de Espinardo MurciaE-30071 Spain

Existing software allows the development of high quality interactive applications that permit their implementation in laboratories, both virtual and remote. To perform an experiment, the user needs to know how these applications are implemented. In addition, when coding an experiment, the user has to manage the language in which the simulation was created and needs to handle fluently a simulation language just to perform experiments. In the academic field these simulations are used to create virtual and remote laboratories. The authors propose a tool to develop automated experiments for these laboratories. It is intended that the experiments use a powerful and simple language to improve students interaction with the laboratories. That is, avoid repetitive tasks using simple algorithms, data collection and analysis of results, among other features. A new environment for the development of experiments in the authoring tool Easy Java(script) Simulations (EjsS) is proposed. It permits the decoupling of the application design phase from the experiment design. It has been equipped with a language capable of encircling all the expected commands, such as creating events, launching simultaneous applications or modifying their variables. Set with a high level layer, the language allows less experienced users to create their own experiments without having any knowledge of how the application was made. These features will be explained throughout the paper and some physic and control examples of use, as a controller for a cylindrical and a circular tank or a motion controller for a remote robot, will be given to demonstrate the potential of this new environment. © 2015, IFAC (International Federation of automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Java programming language Application programs computer simulation languages Experiments Laboratories Technology transfer Easy Java(script) Simulations Experimentation Language Remote laboratories Simulations Virtual laboratories

来源：评论

学校读者我要写书评

暂无评论

Conducting Online Lab Experiments with Blockly

引用

IFAC-PapersOnLine 2017年第1期50卷 13474-13479页

作者： Galan, Daniel Heradio, Ruben de la Torre, Luis Dormido, Sebastian Esquembre, Francisco Dept. of Computer Science and Automatic Control Universidad Nacional de Educación a Distancia Juan del Rosal 16 MadridE-28040 Spain Dept. of Software Engineering and Computer Systems Universidad Nacional de Educación a Distancia Juan del Rosal 16 MadridE-28040 Spain Dept. of Mathematics Universidad de Murcia Campus de Espinardo MurciaE-30071 Spain

Laboratory experimentation plays an essential role in control education. To reduce the high costs of maintaining apparatus in traditional labs and to support distance and blended learning, online laboratories are used as a possible alternative to conventional hands-on labs. In these labs it is often desirable to allow students to define their own experiments. This paper presents the definition and implementation of a generic experimentation language for conducting automatic experiments on existing online laboratories. The main objective is to use an online lab, created independently, as a component in which users can perform experiments. To achieve it, authors present the Experiment Application. It is composed by Blockly, to define and design the experiments, and Google Chart, review and visualize the experiment results. This tool offers benefits to students, teachers and, even, lab designers. For the moment, it can be used with any existing lab or simulation created with the authoring tool Easy Java(script) Simulations. Since there are repositories with hundreds of free available labs created with this tool, the potential applicability of the described tool is considerable. To illustrate the utility of the Experiment Application a very well-known system is used: the Simple Harmonic Oscillator system. © 2017

关键词： computer software Experiments Research laboratories Teaching Blockly Easy java(script) Simulations Experimentation Language Javascript Remote laboratories Virtual laboratories

来源：评论

学校读者我要写书评

暂无评论

Adding propedeuticy dependencies to the OpenAnswer Bayesian model of peer-assessment 13

Adding propedeuticy dependencies to the OpenAnswer Bayesian ...

引用

13th International Conference on Information Technology Based Higher Education and Training, ITHET 2014

作者： De Marsico, Maria Sterbini, Andrea Temperini, Marco Dept. of Computer Science Sapienza University Rome Italy Dept. of Computer Control and Management Engineering Sapienza University Rome Italy

ISBN: (纸本)9781467367301

Peer-assessment can be used to evaluate the knowledge level achieved by learners, while exposing them to a significant leaning activity at the same time. Here we see an approach to semi-automatic grading of school works. It is based on peer-assessment of answers to open ended questions ('open answers'), supported by the teacher grading activity performed on a portion of the answers. The methodology we present is based on a representation of student model and answers through Bayesian networks. It supports grading in a six-values scale (the widely used 'A' to 'F' scale). The experiments we present test the possibility to model the fact that knowledge required to perform some work is preparatory to that required for a subsequent one. The experiments have been conducted using the web-based system OpenAnswer and were meant to collect datasets, to be exploited in order to evaluate the various algorithms, settings and termination conditions better to be applied in order to have a reliable set of grading out of the learners' peer-assessment process and the teacher's grading work (with the latter limited to a significantly limited percentage of the answers to be graded). © 2014 IEEE.

关键词： Bayesian networks

来源：评论

学校读者我要写书评

暂无评论

A framework to support social-collaborative personalized e-learning

A framework to support social-collaborative personalized e-l...

引用

15th International Conference on Human-computer Interaction, HCI International 2013

作者： De Marsico, Maria Sterbini, Andrea Temperini, Marco Dept. of Computer Science Sapienza University of Rome Italy Dept. of Computer Control and Management Engineering Sapienza University of Roma Italy

ISBN: (纸本)9783642392610

We propose a comprehensive framework to support the personalization and adaptivity of courses in e-learning environments where the traditional activity of individual study is augmented by social-collaborative and group based educational activities. The framework aims to get its pedagogical significance from the Vygotskij Theory;it points out a minimal set of requirements to meet, in order to allow its implementations based on modules possibly constituted by independent e-learning software systems, all collaborating under a common interface. © 2013 Springer-Verlag.

关键词： computer aided instruction

来源：评论

学校读者我要写书评

暂无评论

On-line fault detection of transmission line using artificial neural network

On-line fault detection of transmission line using artificia...

引用

International Conference on Power System Technology (POWERCON 2004)

作者： El Safty, SM Ashour, HA El Dessouki, H El Sawaf, M Electrical Engineering and Computer Control Dept. Faculty of Engineering Arab Academy for Science and Technology Egypt

ISBN: (纸本)0780386108

As the voltage and current waveforms are deformed due to transient during faults, their pattern changes according to the type of fault. The Artificial Neural Network (ANN) can then be used for fault detection due to its distinguished behavior in pattern recognition. In order to minimize the structure and timing of the ANN, preprocessing of the voltage and current waveforms was done. The data delivered from a simulated power system using PSCAD (EMTP with cad system) was used for training and testing the ANN. An experimental setup, consists of a 3 phase power supply module and transmission line module, is utilized. A set of signal conditioning circuits is designed and implemented in order to transfer data to a PC which is used as an on-line relay for fault detection. This is done via a data acquisition card (CIO-DAS1602/12). The Matlab program captures and processes real data for training the ANN. Applying different types of faults for testing the system, right tripping action was taken and the type of fault was correctly identified. The suggested artificial neural network algorithm has been found simple and effective hence could be implemented in practical application.

关键词： Electric current measurement

来源：评论

学校读者我要写书评

暂无评论

Assessing group composition in e-learning according to Vygotskij's zone of proximal development

Assessing group composition in e-learning according to Vygot...

引用

8th International Conference on Universal Access in Human-computer Interaction, UAHCI 2014 - Held as Part of 16th International Conference on Human-computer Interaction, HCI International 2014

ISBN: (纸本)9783319074399

In this paper we build on previous work exploring a formal way to assess the composition of learning groups. We start from our existing framework, designed to provide support to personalization in e-learning environments, comprising an implementation of the Vygotskij Theory of proximal development. In such theory, effective individual learning achievements can be only obtained within the boundaries of a cognitive zone where the learner can proceed without frustration, though with support from teacher and peers. In this endeavor, the individual development cannot disregard social-collaborative educational activities. Previously we gave operative definitions of the Zone of Proximal Development for both single learners and groups;here we aim at assessing the viability of a partition of students in groups over a common task. © 2014 Springer International Publishing.

关键词： computer aided instruction

来源：评论

学校读者我要写书评

暂无评论

Detection of Electric Motor Damage Through Analysis of Sound Signals Using Bayesian Neural Networks 50

Detection of Electric Motor Damage Through Analysis of Sound...

引用

50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024

作者： Bauer, Waldemar Zagórowska, Marta Baranowski, Jerzy Dept. of Automatic Control & Robotics AGH University of Krakow Krakow Poland Dept. of Engineering Cybernetics Norwegian University of Science and Technology Trondheim Norway

ISBN: (纸本)9781665464543

Fault monitoring and diagnostics are important to ensure reliability of electric motors. Efficient algorithms for fault detection improve reliability, yet development of cost-effective and reliable classifiers for diagnostics of equipment is challenging, in particular due to unavailability of well-balanced datasets, with signals from properly functioning equipment and those from faulty equipment. Thus, we propose to use a Bayesian neural network to detect and classify faults in electric motors, given its efficacy with imbalanced training data. The performance of the proposed network is demonstrated on real life signals, and a robustness analysis of the proposed solution is provided. © 2024 IEEE.

关键词： Damage detection

来源：评论

学校读者我要写书评

暂无评论

Optimization strategies for MPLS traffic engineering

引用

UPB Scientific Bulletin, Series C: Electrical Engineering 2009年第1期71卷 91-102页

作者： Rughinis, Razvan Deaconescu, Razvan Dept. of Automatic Control Computer Science University POLITEHNICA of Bucharest Bucharest Romania

The paper analyzes optimization strategies for Multiprotocol Label Switching (MPLS) Traffic Engineering in three different areas: Quality of Service awareness, network awareness and the design of routing algorithms. Recent developments in MPLS technology are discussed while identifying the main balancing possibilities within and between the three areas.

关键词： Quality of service

来源：评论

学校读者我要写书评

暂无评论

Design procedure for inverse model command: control method for nonlinear processes

引用

UPB Scientific Bulletin, Series C: Electrical Engineering 2008年第3期70卷 87-100页

作者： Lupu, Ciprian Petrescu, Catalin Ticlea, Alexandru Dimon, Catalin Udrea, Andreea Irimia, Bogdan Dept. of Automatic Control and Computer Science University Politehnica of Bucharest Bucharest Romania

Structures with inverse model represent one of the successful solutions for the real-time control of the nonlinear processes. The use of these structures imposes solving some specific problems, like determination of static characteristic of the process, construction of inverse model or robust control law design. The paper proposes a structure and the correspondent original methodology of designing and physically implementation based on inverse model command. The applicability of the structure is proved using a real-time structure with an RST control algorithm. In the end, its software implementation and the obtained results are also shown.

关键词： Robust control

来源：评论

学校读者我要写书评

暂无评论

PoRF: Proof-of-Reputation-based Consensus Scheme for Fair Transaction Ordering 13

PoRF: Proof-of-Reputation-based Consensus Scheme for Fair Tr...

引用

13th International Conference on Electronics, computers and Artificial Intelligence, ECAI 2021

作者： Shyamsukha, Sidharth Bhattacharya, Pronaya Patel, Farnazbanu Tanwar, Sudeep Gupta, Rajesh Pricop, Emil Nirma University Dept. of Computer Science and Engg. AhmedabadGujarat India Institute of Technology Nirma University Dept. of Computer Science and Engg. AhmedabadGujarat India Petroleum-Gas University of Ploiesti Automatic Control Comp. and Elect. Dept Romania

ISBN: (纸本)9781665425346

Blockchain (BC)-driven applications ensure trust and transparency among multiple stakeholders through different consensus mechanisms. In consensus mechanisms, a dishonest node (or application), might collude with peer nodes, or miners, to prioritize its transactions over other node transactions, thereby reducing its latency and improving its quality-of-service (QoS). To address the above limitation, this paper proposes a consensus scheme, PoRF, based on a reputation-based consensus scheme that allows fair and random transaction selection. The scheme proposes that a sharded BC is considered, managed through shard managers (SM), to address latency and bandwidth issues. A reputation coefficient score is generated, and a reward-penalty setup is considered for nodes based on honest, or dishonest transaction proposals. Based on the reward-penalty outcome, the reputation score for nodes is modified. The scheme is compared with fixed transaction ordering scheme, Helix scheme, and practical byzantine fault tolerance (PBFT) consensus for transaction fairness, transaction time, and epochs required for consensus formations. The scheme outperforms the considered schemes for the considered parameters. For example, for 50% dishonest nodes, an improvement of 70 % is recorded against a fixed transaction scheme, and at 4000 nodes, the proposed scheme takes 130 milliseconds (ms) less for the execution of transactions. For consensus formation, at 250 nodes, PBFT takes 167 epochs for consensus, compared to 24 epochs in the proposed scheme, which indicates the scheme's viability in real-world setups. © 2021 IEEE.

关键词： Blockchain

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：