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1997 IEEE International Conference on Neural Networks, ICNN 1997

作者： Kim, Sang-Hee Jang, Chang-Wha Chai, Chang-Hyun Choi, Han-Go Human-Computer Interaction Lab. Dept. of Electronics Kumoh Nat. Univ. of Tech. Korea Republic of

ISBN: (纸本)0780341228

This paper investigates the direct adaptive control of nonlinear systems using chaotic neural networks. Since the structure of a chaotic neural network contains self and internal feedback loops in each layer, chaotic neural networks can show robust characteristics for controlling highly nonlinear dynamics such as in robotic manipulators. This paper presents modified chaotic neural networks with the backpropagation learning algorithm. To evaluate the performance of the proposed neural networks, we simulate the trajectory control of the three-axis PUMA robot with direct adaptive control strategies. The structure of the robot controller consists of the PD controller and chaotic neural networks controller in parallel. Simulation results showed the superior performance on convergence and final error compared with recurrent neural networks. Chaotic neural networks also reduce the number of nodes and computation time. © 1997 IEEE.

关键词： Recurrent neural networks

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Experiencing the international children's digital library

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interactions 2008年第6期15卷 50-54页

作者： Bederson, Benjamin B. Department of Computer Science Human-Computer Interaction Lab. University of Maryland

The International Children's Digital Library (ICDL), is a website of exemplary and freely availab.e children's books with a child-friendly interface for finding and reading books online. The design, implementation, and deployment of the ICDL is done thorough a process called Cooperative Inquiry, which offers search parameters of various books. An IDCL weblog analysis confirms the academic research with practice, and allows children to read books in order or starting at any page by clicking on it. The website has received a positive feedback from users and has also been offered request from the World Bank and the Government of Mongolia to create a Mongolian version of the ICDL. The user countries of ICDL are aimed to identify economic impact of this technology and are aimed to use this website technology of online books in a variety of domains.

关键词： Digital libraries

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Children initiating and leading cooperative inquiry sessions 13

Children initiating and leading cooperative inquiry sessions

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12th International Conference on interaction Design and Children, IDC 2013

作者： Yip, Jason C. Foss, Elizabeth Bonsignore, Elizabeth Guha, Mona Leigh Norooz, Leyla Rhodes, Emily McNally, Brenna Papadatos, Panagis Golub, Evan Druin, Allison University of Maryland Human-Computer Interaction Lab. 2117 Hornbake South Wing College Park MD 20742 United States

ISBN: (纸本)9781450319188

Cooperative Inquiry is a Participatory Design method that involves children (typically 7-11 years old) as full partners with adults in the design of technologies intended for use by children. For many years, child designers have worked together with adults in Cooperative Inquiry approaches. However, in the past children have not typically initiated the design problems tackled by the intergenerational team, nor have they acted in leadership roles by conducting design sessions-until now. In this paper, we detail three case studies of Cooperative Inquiry in which children led the process of design, from initial problem formulation through one iteration of design review and elab.ration. We frame our analysis from three perspectives on the design process: behaviors exhibited by child leaders and their fellow co-designers;supports required for child leaders;and views expressed by child leaders and their co-design cohort about the sessions that they led. Copyright 2013 ACM.

关键词： Design

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Ad hoc communities on the road: Serendipitous social encounters to enhance tourist experiences 15

Ad hoc communities on the road: Serendipitous social encount...

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27th Australian computer-human interaction Conference, OzCHI 2015

作者： Thiel, Sarah-Kristin Foth, Marcus Schroeter, Ronald Urban Informatics Research Lab. Queensland University of Technology Brisbane Australia Centre for Human-Computer Interaction University of Salzburg Austria

ISBN: (纸本)9781450336734

Driving can be a lonely activity. While there has been a lot of research and technical inventions concerning car-tocar communication and passenger entertainment, there is still little work concerning connecting drivers. Whereas tourism is very much a social activity, drive tourists and road trippers have few options to communicate with fellow travelers. Our study is placed at the intersection of tourism and driving. It aims to enhance the trip experience during driving through social interaction. This paper explores how a mobile application that allows instant messaging between travelers sharing similar context can establish a temporary, ad hoc community and enhance the road trip experience. A prototype was developed and evaluated in various user and field studies. The study's outcomes are relevant for the design of future mobile tourist guides that benefit from community design, social encounters and recommendations.

关键词： User interfaces

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A user study trends in augmented reality and virtual reality research: A qualitative study with the past three years of the ISMAR and IEEE VR conference papers

A user study trends in augmented reality and virtual reality...

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2012 International Symposium on Ubiquitous Virtual Reality, ISUVR 2012

作者： Kim, Si Jung Jun Human-Computer Interaction Lab. School of Visual Arts and Design University of Central Florida Orlando FL 32826 United States

ISBN: (纸本)9780769547664

Augmented reality (AR) and virtual reality (VR) are becoming a part of everyday life with the advance of other technologies such as computer vision systems, sensing technologies, graphics, mobile computing, etc. Their primary goal is to help users achieve their goals effectively and efficiently with satisfaction. This paper describes the trends of how user studies have been incorporated into AR and VR papers published in two major conferences over the past three years. In addition, this paper presents implications on what needs to be taken into account when planning a user study in the field of AR and VR research. © 2012 IEEE.

关键词： Augmented reality

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Robotic Sorting of Mechanical and Electrical Parts: An Autonomous vision-Based Approach in a Practical Case Study 10

Robotic Sorting of Mechanical and Electrical Parts: An Auton...

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10th International Conference on Control, Instrumentation and Automation, ICCIA 2024

作者： Yousefi, Mohammad Dalvand, Mahdi Khomami, Navid Asadi Masouleh, Mehdi Tale Yazdi, Mohammad Reza Haeri University of Tehran Human and Robot Interaction Lab. School of Mechanical Engineering Tehran Iran University of Tehran Human and Robot Interaction Lab. School of Electrical and Computer Engineering Tehran Iran University of Tehran School of Mechanical Engineering Tehran Iran

ISBN: (纸本)9798331509972

In today's industrial landscape, automation has become increasingly vital, particularly in the deployment of robots for tasks such as sorting machine components. The use of robotic systems enhances process accuracy and speed, resulting in significant cost reductions and improved productivity compared to manual lab.r. This paper aims to design and develop an automated sorting system for various types of mechanical and electrical parts, utilizing image processing and machine vision algorithms with a Delta parallel robot equipped with a two-finger gripper. The target mechanical and electrical parts in this study are screws, nuts, metal washers, rubber washers, retaining rings, rectangular keys, wall plugs, resistors, potentiometers, capacitors, batteries, ICs, and LEDs. The YOLOv3 algorithm and Adaptive Thresholding method are employed to detect and distinguish objects from the background, and size measurement is achieved with the help of a custom marker with known dimensions. In this study, transfer learning based on pre-Trained weights of YOLOv3 for the COCO dataset is applied. The proposed system attains a final mean Average Precision (mAP@0.5) value exceeding 0.95 for part detection using YOLOv3. Additionally, it demonstrates an overall pick-And-place success rate exceeding 90%. © 2024 IEEE.

关键词： Grippers

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On the problem of determination of spring stiffness parameters for spring-mesh models

On the problem of determination of spring stiffness paramete...

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Medicine Meets Virtual Reality 16 - Parallel, Combinatorial, Convergent: NextMed by Design, MMVR 2008

作者： Quang Huy Viet, Huynh Hirai, Shinichi Shirai, Yoshiaki Yamaguchi, Satoshi Tanaka, Hiromi T. Kawasaki, Hiroshi Kawai, Yukiko Computer Vision and Graphics Laboratory Department of Information and Computer Science Saitama University Saitama Japan Laboratory for Integrated Machine Intelligence Department of Robotics Ritsumeikan University Kusatsu Japan Computer Vision Lab. Department of Human and Computer Intelligence Ritsumeikan University Kusatsu Japan Kawai Lab. Department of Computer Science Kyoto Sangyo University Kyoto Japan

ISBN: (纸本)9781586038229

On account of having real-time behavior and being easy to implement, spring meshes have been used for modeling deformable objects. Determining spring stiffness parameters for simulation of soft objects with high accuracy still remains a challenge. Allen Van Gelder derived an approximate formula for determining spring stiffness parameters based on strain analysis. Even though the experimental result showed the effectiveness, the method has not been investigated from a quantitative point of view. In this paper we propose a quantitative method for determining spring stiffness parameters. Moreover we propose a method to improve the accuracy by way of introducing torsional spring into the conventional spring mesh model. © 2008 The authors. All rights reserved.

关键词： Stiffness matrix

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A fast and robust face detection based on module switching network

A fast and robust face detection based on module switching n...

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Proceedings - Sixth IEEE International Conference on Automatic Face and Gesture Recognition FGR 2004

作者： Kim, Jung-Bae Sung, Young Hoon Kee, Seok-Cheol Human Computer Interaction Lab. Samsung Adv. Institute of Technology Yongin-si Gyeonggi-do 449-712 Korea Republic of

ISBN: (纸本)0769521223

We suggest a face detection method for video surveillance system to store a user's images fast and robustly. Our system consists of face and motion detectors. The face detector adopts a gentle AdaBoost algorithm to detect a face. Employing a module switching network, we extend the detectable facial pose range without loss of time. The motion detector, using temporal edges and temporal variance, decides whether a user exists when the face detector fails to detect a face. The proposed method, implemented in the form of software and a PCI interface card, displays 92.3% detection ratio in the test for CMU test DB.

关键词： Face recognition

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CandidTree: Visualizing structural uncertainty in similar hierarchies

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Information Visualization 2007年第3期6卷 233-246页

作者： Lee, Bongshin Robertson, George G Czerwinski, Mary Sims Parr, Cynthia Microsoft Research One Microsoft Way Redmond WA United States Human-Computer Interaction Lab. Institute for Advanced Computer Studies University of Maryland College Park MD United States Microsoft Research One Microsoft Way Redmond WA 98052 United States

Most visualization systems fail to convey uncertainty within data. To provide a way to show uncertainty in similar hierarchies, we interpreted the differences between two tree structures as uncertainty. We developed a new interactive visualization system called CandidTree that merges two trees into one and visualizes two types of structural uncertainty: location and sub-tree structure uncertainty. Since CandidTree can visualize the differences between two tree structures, we conducted a series of user studies with tree-comparison tasks. First a usability study was conducted to identify major usability issues and evaluate how our system works. Another qualitative user study was conducted to see if biologists, who regularly work with hierarchically organized names, are able to use CandidTree, and to assess the uncertainty metric we used. A controlled experiment with software engineers was conducted to compare CandidTree with WinDiff, a traditional files and folders comparison tool. The results showed that users performed better with CandidTree. Furthermore, CandidTree received better satisfaction ratings and all users preferred CandidTree to WinDiff. © 2007 Palgr aveMacmillan Ltd. All rights reserved.

关键词： Uncertainty analysis

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Designing a collab.rative learning activity in second life: An exploratory study in physics

Designing a collaborative learning activity in second life: ...

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International Conference on Advanced Learning Technologies

作者： Vrellis, Ioannis Papachristos, Nikiforos M. Bellou, Joan Avouris, Nikolaos Mikropoulos, Tassos A. Educational Approaches to Virtual Reality Technologies Lab. University of Ioannina Ioannina Greece Human-Computer Interaction Group Electrical and Computer Engineering Dept. University of Patras Greece

ISBN: (纸本)9780769540559

Multi-user virtual environments (MUVEs) seem to have great potential in education. Current educational uses of MUVEs seem to exploit them more as group interaction platforms and less as worlds where users learn by interacting and modifying the environment in a constructivist approach. There is also a need for systematic research efforts that will lead to guidelines and principles for designing and evaluating effective learning activities in MUVEs. This paper presents preliminary empirical results from an exploratory study with university students. A collab.rative problem-based physics learning activity was designed in Second Life® (SL), following a constructivist approach. Students (n=30) collab.rated "in-world" in pairs assisted by a tutor, in order to solve the problem. Data were gathered using a questionnaire and session recordings. The study focused on issues related to educational environment design, collab.ration and instruction. Results indicate that satisfactory, engaging and effective collab.rative learning activities can be realized in SL. © 2010 IEEE.

关键词： Students

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