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Evaluation of Mouse and Touch Input for a Tabletop Display Using Fitts' Reciprocal Tapping Task

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2009年第12期53卷 839 - 843页

作者： Farzan Sasangohar I. Scott MacKenzie Stacey D. Scott Dept. of System Design Engineering University of Waterloo Dept. of Computer Science and Engineering York University

User performance with a tabletop display was tested using touch-based and mouse-based interaction in a traditional pointing task. Dependent variables were throughput, error rate, and movement time. In a study with 12 participants, touch had a higher throughput with average of 5.53 bps compared to 3.83 bps for the mouse. Touch also had a lower movement time on average, with block means ranging from 403 ms to 1051 ms vs. 607 ms to 1323 ms with the mouse. Error rates were lower for the mouse at 2.1%, compared to 9.8% for touch. The high error rates using touch were attributed to problems in selecting small targets with the finger. It is argued that, overall, touch input is a preferred and efficient input technique for tabletop displays, but that more research is needed to improve touch selection of small targets.

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The design of the Intelligent Car Based on the Arduino UNO and Lab VIEW 5

The Design of the Intelligent Car Based on the Arduino UNO a...

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5th Annual International Conference on Network and Information systems for computers, ICNISC 2019

作者： Tang, Lili Huang, Wei You, Jie Department of Computer and Information Engineering Zhixing College of Hubei University Wuhan430011 China Fourth Laboratory System Design Institute of Hubei Aerospace Technology Academy Wuhan430011 China

The design of wireless remote control intelligent car uses PC-side LabVIEW host computer control software responsible for the interaction interface with the car, uses serial communication module APC220-43, one is connected to the PC to send commands from the host computer, the other is connected to the Arduino UNO to receive instructions from the host computer, and uses open source MCU controller Arduino UNO lower computer is responsible for receiving, parsing and executing instructions sent by LabVIEW. The upper computer and the lower computer carry out long-distance transmission of instructions through APC220-43 wireless serial communication module to realize the remote control of the car and the measurement of temperature, humidity and distance data. This design scheme provides certain reference value for the design fields of smart home, smart transportation, remote assistance, etc. © Published under licence by IOP Publishing Ltd.

关键词： Automation

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Modeling and Performance Analysis of the Transceiver Duplex Filter using SIMULINK 20

Modeling and Performance Analysis of the Transceiver Duplex ...

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20th International Conference on Sciences and Techniques of Automatic Control and computer engineering, STA 2020

作者： Bozed, Kenz A. Zerek, Amer R. Daeri, Amer M. Jaradat, Yousef Benghazi University Faculty of Information Technology Computer System Design Department Benghazi Libya Zawia University Faculty of Engineering Ee Department Zawia Libya Zawia University Faculty of Engineering Computer Eng. Department. Zawia Libya Al-Zaytoonah University of Jordan Department of Electrical Engineering/Communications and Computer Amman Jordan

ISBN: (纸本)9781728188157

The non-idealities of full-duplex devices of the transceiver chain is not well known despite of the intensive recent research on wireless single-channel full-duplex communications. However, in spite of the use of efficient analog and digital cancellation and suitable physical antenna isolation they turn out to be among main practical reasons for observing residual self-interference. In this paper the implementation and simulation of RF transceiver Duplex Filter and noise isolation improvement using Matlab/SIMULINK environment is done, as well as quantifying the dynamic range of required signal and the reduction of these IF-interference due to the analog-to-digital interface. The Transfer Function calculation results are provided by the help of a White Noise Source and Simulation results of frequency response in the Tx and Rx channels. The simulation and measurement results comparison for new duplexer and the marks and values of frequency response at the critical frequency points have improved isolation due to the effect of optimized external inductor. It has been observed in a full-duplex transceiver that the transmitter power amplifier (PA) produces a nonlinear distortion that is considered to be a significant issue. © 2020 IEEE.

关键词： Frequency response

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Studying of an Adaptive Unscented Kalman Filter as a Target Tracking Algorithm with Matlab Simulation 2

Studying of an Adaptive Unscented Kalman Filter as a Target ...

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2nd IEEE International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and computer engineering, MI-STA 2022

作者： Ammar, Abdussalam Masaud Ellafi, Amira Youssef Bozed, Kenz Amhmed Zerek, Amer R. Faculty of Electronic Technology Tripoli Libya Benghazi University Faculty of Information Technology Department of Computer System Design Libya Zawia University Faculty of Engineering EE Department Zawia Libya

ISBN: (数字)9781665479189

ISBN: (纸本)9781665479189

The radar is considered as one of tracking application which we need to tracking unknown targets. This application is using a kalman filter. Also the extended and unscented kalman filter has been created to deal with nonlinear systems such as multidimensional radar tracking. If wideband radar is used, multiple return signals may be obtained by scattering on a single target in a single pulse. It is important to monitor multiple dispersions on an undefined number of artifacts in the specific problem considered, with a standard wideband radar model, whose motion involves a nonlinear rotational velocity component. The measurements used are scattered range, range-rate (in analogy to Doppler), nonlinear functions of the scattered position and velocity, with parameters in the state-space model. In order to evaluate the scene and observe its progression over time, the tracker design uses a Kalman Filter type to model the nonlinear dynamics and measurement items and a multi-pronged association scheme. © 2022 IEEE.

关键词： Mean square error

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Lab report writing (and teaching!) made easy

Lab report writing (and teaching!) made easy

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2008 ASEE Annual Conference and Exposition

作者： Magleby, Alyssa Furse, Cynthia University of Utah Department of Electrical and Computer Engineering University of Utah NSF DLR Project - Integrated System Level Design NSF STEP Program LiveWire Test Labs Inc.

This paper reports on a project to improve students' ability to write better lab reports and assist teaching assistants (TAs) in grading reports in a consistent manner. A lab report teaching system was developed that includes lab report templates, teaching assistant instructions, grading rubrics, examples, peer review materials and instructions, and recommendations for quickly providing student feedback (grading). These materials were developed for project-based labs across the electrical engineering curriculum and utilize methods to write weekly lab updates that are combined into a final lab report, mimicking methods commonly used in industry. The technical writing information was adapted to all levels of complexity to help students from freshman through senior years. The system begins with instruction on writing very basic reports, and builds each year on previous knowledge and practices, to prepare students to later write complex reports. This system is designed to improve students' understanding of labs (by 'writing to learn') in addition to preparing them for the communication intensive workplace. The amount of time spent grading such reports is often a primary concern, as this is commonly given as a reason for not requiring advanced writing assignments in engineering classes. Detailed guidelines and grading rubrics are included in this manual to instruct TAs on better and more consistent grading techniques. Guidelines for checking both lab books and formal lab reports help improve TA training and grading consistency, reducing student complaints. Although this system was designed for an electrical engineering program, it can also be adapted to other technical fields and used for various scientific lab reports. © American Society for engineering Education, 2008.

关键词： Grading

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Analyzing Code Injection Attacks on Applications of Android Devices and Emulator 9

Analyzing Code Injection Attacks on Applications of Android ...

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9th IEEE International Conference on Computing, engineering and design, ICCED 2023

作者： Erfina, Adhitia Hidayat, Rahmat Rizaldi, Rafli Radya Puput Maulana, Riko Sembiring, Falentino Nusa Putra University Faculty of Engineering Computing and Design Departement of Infomation System Sukabumi Indonesia Budi Luhur University Master of Computer Science Faculty of Information Technology Jakarta Indonesia

ISBN: (纸本)9798350370126

The Android operating system released by Google in 2007 has experienced very significant development. In 2019, the number of Android application users reached 2.5 billion. One of the contributing factors is the nature of the android application, which is very flexible and easy to install. Users can download APK files on the internet. Generally, APK files are stored in archive format, so they are pretty easy to manage. However, APK files may be used to spread malware behind this convenience. This study aims to provide an overview of the process of planting malware/backdoor on Android applications and how to prevent it. This study initiated the injection of malicious code on five android applications, namely WhatsApp, Telegram, DroidCam, Fifa Mobile, and Tokopedia. According to the results, four applications were successfully injected, while one application failed. The failure most likely occurred as a result of the application's source code being obfuscated. Obfuscation is therefore strongly advised for Android applications to prevent code injection that could potentially lead to malware insertion. © 2023 IEEE.

关键词： Android (operating system)

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Integrating biocybernetic adaptation in virtual reality training concentration and calmness in target shooting 1

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3rd International Conference on Physiological Computing systems, PhyCS 2016, 4th International Conference on Physiological Computing systems, PhyCS 2017 and 5th International Conference on Physiological Computing systems, PhyCS 2018

作者： Muñoz, John E. Pope, Alan T. Velez, Luis E. System Design and Engineering Department University of Waterloo Waterloo Canada NASA Langley Research Center Hampton United States Department of Computer and Systems Sciences at Stockholm University Stockholm Sweden

ISBN: (数字)9783030279509

ISBN: (纸本)9783030279493

Training military readiness can significantly reduce potentially avoidable mistakes in real life situations. Virtual Reality (VR) has been widely used to provide a controlled and immersive medium for training both trainees’ physical and cognitive skills. Despite the tremendous advances in VR-based training for military personnel, the attention has been mainly paid on improving simulation’s realism through hardware tools and enhancing graphics and data input paradigms, rather than augmenting the human-computer interaction. Biocybernetic adaptation is a technique from the physiological computing field that allows creating real-time modulations based on detected human states indicated by psychophysiological responses. Although very sophisticated, the creation of biocybernetic loops has been mainly confined to research laboratories and very complex and invasive setups. Moreover, the combination of VR applications and biocybernetic adaptation has rarely been pursued beyond exploratory experiments. The Biocyber Physical system (BioPhyS) for military training in VR constitutes the first fully integrated, distributed and replicable VR simulator that is biocybernetically modulated. BioPhyS uses neurophysiological and cardiovascular measurements recorded from wearable sensors to detect calmness and cognitive readiness states to create dynamic changes in a VR target shooting simulator. The design process, psychophysiological modeling, and biocybernetic loop technology integration are shown, describing a pilot study carried out with a group of non-military participants. We highlight the software elements used for the VR-biocybernetic integration, and the psychophysiological model created for the real-time system as well as the timeline used to develop the functional prototype. We conclude this paper with a set of guidelines for developing meaningful physiological adaptations in VR applications. © Springer Nature Switzerland AG 2019.

关键词： Virtual reality

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Analyzing software with the complexity theory

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WSEAS Transactions on systems 2006年第10期5卷 2484-2488页

作者： Kokol, Peter Lenič, Mitja Laboratory for System Design Faculty of Electrical Engineering and Computer Science University of Maribor Maribor Slovenia

computer software and the software development process belong to the class of complex systems. Continues monitoring and analysis of development process is crucial to minimize risk. For that reason many metrics and monitoring tools were developed. Most of metrics are programming language dependent. In the present paper we introduce a tool for analyzing program complexity using chaos theory, especially the idea of the logistic map. It enables assessment of current state of the software development process based on previous software revisions. Analysis is programming language independent and also enables analysis of object and compiled code.

关键词： computer software selection and evaluation

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A coevolutionary memetic particle swarm optimizer

A coevolutionary memetic particle swarm optimizer

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3rd International Conference on Swarm Intelligence, ICSI 2012

作者： Zhou, Jiarui Ji, Zhen Zhu, Zexuan Chen, Siping College of Biomedical Engineering and Instrument Science Zhejiang University Hangzhou 310027 China Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University Shenzhen 518060 China

ISBN: (纸本)9783642309755

This paper presents a coevolutionary memetic particle swarm optimizer (CMPSO) for the global optimization of numerical functions. CMPSO simplifies the update rules of the global evolution and utilizes five different effective local search strategies for individual improvement. The combination of the local search strategy and its corresponding computational budget is defined as coevolutionary meme (CM). CMPSO co-evolves both CMs and a single particle position recording the historical best solution that is optimized by the CMs in each generation. The experimental results on 7 unimodal and 22 multimodal benchmark functions demonstrate that CMPSO obtains better performance than other representative state-of-the-art PSO variances. Particularly, CMPSO is shown to have higher convergence speed. © 2012 Springer-Verlag.

关键词： Global optimization

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A Novel Approach for Achieving FOMs in Space Constrained Optimized Arrays for AESA Applications

A Novel Approach for Achieving FOMs in Space Constrained Opt...

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2024 International Conference on Microelectronics, ICM 2024

作者： Naveed, Athar Tahir, Ghiayas Hassan, Arshad Ali, Shawkat Khan, Arshad Bermak, Amine Nastp Electronics System Design Center Pakistan National University of Computer and Emerging Sciences Department of Electrical Engineering Islamabad Pakistan College of Science and Engineering Hamad Bin Khalifa University Qatar Foundation Doha Qatar

ISBN: (纸本)9798350379396

This paper defines an approach applied for implementation of application specific beamforming modalities in finite aperture, space-constrained, optimized arrays. To achieve desired response in array factor, appropriate tapering schemes are selected while focusing on array Figures of Merits (FOMs). In this paper, space-constrained optimized arrays of sizes 1 × 32 (linear) and 8 × 8 (planar) are designed using Opti-metrics in High Frequency Structure Simulator (HFSS). The calculated weights and steering scheme are then applied to HFSS models and Matlab based calculations are validated for proof of concept. Array metrics like low SLL, limited beam-broadening, increased directivity and limited scan loss in planned Field of View (FOV) are targeted metrics. This paper also briefly elaborates comparison of various tapering techniques, while focusing on defined FOMs. The working procedure is developed which extends itself from excitation control of linear to planar dimensions. Keeping in view limited computational resources for full wave simulation, an approach using Pattern Multiplication (PM) is suggested to converge to desired results for large sized arrays. The scheme of this paper has also been used in a design of Hybrid beamforming network (BFN). © 2024 IEEE.

关键词： MATLAB

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