检索结果-内蒙古大学图书馆

Work Domain Analysis for the interface design of a Sonobuoy System

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2007年第4期51卷 283 - 287页

作者： Huei-Yen Chen Catherine M. Burns Advanced Interface Design Lab University of Waterloo Waterloo Ontario Canada Tab Lamoureux Human® Incorporated Guelph Ontario Canada

Modern sonar systems have greatly improved their sensor technology and processing techniques, but little effort has been put into display design for sonar data. The enormous amount of acoustic data presented by the traditional frequency versus time display can be overwhelming for a sonar operator to monitor and analyze. In addition to their normal sonar tasks, sonobuoy system operators manage the deployment of sonobuoys and ensure proper functioning of deployed sonobuoys. This paper describes a work domain analysis carried out as part of an interface design project targeting the sonobuoy system on board a maritime patrol aircraft. The domain of sonobuoy management and the domain of tactical situation awareness were modeled separately to address the two different aspects of the operator's work. Information requirements were drawn from the two models. Some of these requirements have significant implications for new design ideas that were previously overlooked in displays for sonobuoy systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Complete and scalable multi-robot planning in tunnel environments

Complete and scalable multi-robot planning in tunnel environ...

引用

作者： Peasgood, Mike McPhee, John Clark, Christopher Lab for Intelligent and Autonomous Robotics Department of Mechanical Engineering University of Waterloo Waterloo ON N2L 3G1 Canada Motion Research Group Department of Systems Design Engineering University of Waterloo Waterloo ON N2L 3G1 Canada

ISBN: (纸本)8587978128

This paper addresses the challenging problem of finding collision- free trajectories for many robots moving to individual goals within a common environment. Most popular algorithms for multi-robot planning manage the complexity of the problem by planning trajectories for robots sequentially, such decoupled methods may fail to and a solution even if one exists. In contrast, this paper describes a multi-phase approach to the planning problem that guarantees a solution by creating and maintaining obstacle-free paths through the environment as required for each robot to reach its goal. Using a topological graph and spanning tree representation of a tunnel or corridor environment, the multi-phase planner is capable of planning trajectories for up to r = L¡1 robots, where the spanning tree includes L leaves. Monte Carlo simulations in a large environment with varying number of robots demonstrate that the algorithm can solve planning problems requiring complex coordination of many robots that cannot be solved with a decoupled approach, and is scalable with complexity linear in the number of robots.

关键词： Motion planning

来源：评论

学校读者我要写书评

暂无评论

Twisting sliding mode control of an electrostatic MEMS micromirror for a laser scanning system 34

Twisting sliding mode control of an electrostatic MEMS micro...

引用

第三十四届中国控制会议

作者： Chen Hui Sun ZhenDong Sun WeiJie Yeow John T W School of Comp uter and Information Engineering HeNan University Key Lab of Systems & Control Academy of Mathematics and Systems Science Chinese Academy of Sciences College of Automation Science and Engineering South China University of Technology Systems Design Engineering University of Waterloo

ISBN: (纸本)9781467374439

This paper demonstrates the design and implementation of a second order twisting control algorithm with PID sliding surface for aMEM S micromirror.A laser scanning system with the closed-loop controlled MEM S micromirror is developed and obtains 2D *** response and pointing performance are essential for the optical communications applications,for instance,MEM S optical *** verify the effectiveness of theproposed scheme,the experiments of set-point regulation are *** with traditional sliding mode control,the proposed scheme is able to improve the pointing accuracy with less chattering phenomenon.A micromirror-based laser scanning system is developed,the experimental results confirm that the proposed scheme is able to reduce the distortion of the scan trajectory and improve the image quality.

关键词： Sliding Mode Control,Twisting algorithm,electrostatic micromirror

来源：评论

学校读者我要写书评

暂无评论

Scenario Mapping with Work Domain Analysis

引用

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2001年第4期45卷 424 - 428页

作者： Catherine M. Burns David J. Bryant Bruce A. Chalmers Advanced Interface Design Lab Systems Design Engineering University of Waterloo Waterloo Ontario Canada Humansystems Incorporated Guelph Ontario Canada Naval Command and Control Defence Research Establishment Atlantic Dartmouth Nova Scotia Canada

Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on track and relevant. This paper presents one approach for validating a work domain analysis by mapping the action patterns of operators against the work domain space developed by the analysis. This approach provides some validation the analysis, shows the use of the work domain over time in three dimensions, and provides a substantial link between the work analysis approach and traditional task-based approaches.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Information Technology systems at the sharp end of medication therapy management

引用

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2019年第1期63卷 698 - 702页

作者： Reicelis Casares Li Rodrigo Arcuri Marques Pereira Alessandro Jatobá Mario Cesar Rodríguez Vidal Paulo Victor Rodrigues de Carvalho Kelly Grindrod Catherine Burns Advanced Interface Design Lab Systems Design Engineering University of Waterloo Ontario Canada Advanced Interface Design Lab Systems Design Engineering University of Waterloo Ontario CanadaComplex Systems Ergonomics Research Unit (GENTE) Federal University of Rio de Janeiro Brazil Oswaldo Cruz Foundation (FIOCRUZ) Rio de Janeiro Brazil Complex Systems Ergonomics Research Unit (GENTE) Federal University of Rio de Janeiro Brazil Nuclear Engineering Institute (IEN) Rio de Janeiro Brazil School of Pharmacy University of Waterloo Ontario Canada

This study explored how to inform the design of information systems for medication therapy management, in the context of the southwestern Ontario health system. The data collection comprised document analysis, interviews, and process mapping, and the analysis of previous interview records. The Functional Resonance Analysis Method (FRAM) was used for data analysis to identify the effects of functional variability in system outcomes, and to propose ways to redesign future systems. The results from the FRAM showed that shortcomings in the information systems require users to adapt in many ways. While these adjustments are essential to delivering care in everyday practice, they may lose their effectiveness in the face of specific situations, creating brittleness and risk of adverse outcomes as users are led to make challenging decisions.

关键词：

来源：评论

学校读者我要写书评

暂无评论

design optimization of field emission from a stacked carbon nanotube array

Design optimization of field emission from a stacked carbon ...

引用

2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008

作者： Roy Mahapatra, D. Sinha, N. Anand, S.V. Krishnan, R. Vikram, N.V. Melnik, R.V.N. Yeow, J.T.W. Department of Aerospace Engineering Indian Institute of Science Bangalore India Department of Systems Design Engineering University of Waterloo Waterloo ON Canada Department of Mechanical Engineering R. V. College of Engineering Bangalore India M2NeT Lab. Wilfrid Laurier University Waterloo ON Canada

ISBN: (纸本)9781420085075

Fluctuation of field emission in carbon nanotubes (CNTs) is not desirable in many applications and the design of biomedical x-ray devices is one of them. In these applications, it is of great importance to have precise control of electron beams over multiple spatio-temporal scales. In this paper, a new design is proposed in order to optimize the field emission performance of CNT arrays. A diode configuration is used for analysis, where arrays of CNTs act as cathode. The results indicate that the linear height distribution of CNTs, as proposed in this study, shows more stable performance than the conventionally used unifrom distribution.

关键词： Carbon nanotubes

来源：评论

学校读者我要写书评

暂无评论

Auto-Detection of Safety Issues in Baby Products

arXiv

引用

arXiv 2018年

作者： Bleaney, Graham Kuzyk, Matthew Man, Julian Mayanloo, Hossein Tizhoosh, H.R. Systems Design Engineering University of Waterloo WaterlooON Canada KIMIA Lab University of Waterloo ON Canada

Every year, thousands of people receive consumer product related injuries. Research indicates that online customer reviews can be processed to autonomously identify product safety issues. Early identification of safety issues can lead to earlier recalls, and thus fewer injuries and deaths. A dataset of product reviews from *** was compiled, along with *** complaints and recall descriptions from the Consumer Product Safety Commission (CPSC) and European Commission Rapid Alert system. A system was built to clean the collected text and to extract relevant features. Dimensionality reduction was performed by computing feature relevance through a Random Forest and discarding features with low information gain. Various classifiers were analyzed, including Logistic Regression, SVMs, Naïve-Bayes, Random Forests, and an Ensemble classifier. Experimentation with various features and classifier combinations resulted in a logistic regression model with 66% precision in the top 50 reviews surfaced. This classifier outperforms all benchmarks set by related literature and consumer product safety professionals. Copyright © 2018, The Authors. All rights reserved.

关键词： Consumer products

来源：评论

学校读者我要写书评

暂无评论

CRISTAL: A Collaborative Home Media and Device Controller Based on a Multi-touch Display 09

CRISTAL: A Collaborative Home Media and Device Controller Ba...

引用

4th ACM International Conference on Interactive Tabletops and Surfaces, ITS 2009

作者： Seifried, Thomas Haller, Michael Scott, Stacey D. Perteneder, Florian Rendl, Christian Sakamoto, Daisuke Inami, Masahiko Media Interaction Lab Upper Austria University of Applied Sciences Austria Department of Systems Design Engineering University of Waterloo Canada Department of Computer Science University of Tokyo Japan School of Media Design Keio University Japan

ISBN: (纸本)9781605587332

While most homes are inherently social places, existing devices designed to control consumer electronics typically only support single user interaction. Further, as the number of consumer electronics in modern homes increases, people are often forced to switch between many controllers to interact with these devices. To simplify interaction with these devices and to enable more collaborative forms of device control, we propose an integrated remote control system, called CRISTAL (Control of Remotely interfaced systems using Touch-based Actions in Living spaces). CRISTAL enables people to control a wide variety of digital devices from a centralized, interactive tabletop system that provides an intuitive, gesture-based interface that enables multiple users to control home media devices through a virtually augmented video image of the surrounding environment. A preliminary user study of the CRISTAL system is presented, along with a discussion of future research directions. © 2009 ACM.

关键词： Digital devices

来源：评论

学校读者我要写书评

暂无评论

Image registration using virtual circles and edge direction

Image registration using virtual circles and edge direction

引用

作者： Alhichri, Haikel Salem Kamel, Mohamed Pattern Analysis and Machine Intelligence Lab. Systems Design Engineering University of Waterloo Waterloo Ont. N2L 3G1 Canada

In this paper, we combine a novel set of image features called virtual circles with edge direction, to provide an efficient alignment algorithm for image registration under similarity transformations. Virtual circles can be extracted efficiently from many types of images with the help of the distance transform. They can also have extra information, such as their radius and the dominant edge direction in neighborhood, which can be used for efficient registration. A heuristic called the smoothness criterion is used to choose virtual circles which are less likely to be corrupted by background noise, and to increases the efficiency of the algorithm. Experimental results have shown that this method is highly automatic and has linear complexity in terms of the number of virtual circles extracted. © 2002 IEEE.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

Decision fusion in neural network ensembles

Decision fusion in neural network ensembles

引用

International Joint Conference on Neural Networks (IJCNN'01)

作者： Wanas, N.M. Kamel, M.S. Pattern Analysis Mach. Intell. Lab. Dept. of Systems Design Engineering University of Waterloo Waterloo Ont. N2L-3G1 Canada

In this paper we present a comparison between different combining techniques in neural network ensembles. The main focus of this paper will be on a new architecture that can be used in combining neural network ensembles. This architecture is based on training two neural networks to perform the aggregation. One network is trained to establish a confidence factor for each member of the ensemble for every training entry. The other network performs the aggregation of the ensemble to present the final decision. Both these networks evolve together during training. This approach is compared with standard fixed and trained combining schemes.

关键词： Neural networks

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：