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Conference on human Factors in Computing Systems, CHI EA 2002

作者： Shneiderman, Ben Card, Stuart Norman, Donald A. Tremaine, Marilyn Waldrop, M. Mitchell Department of Computer Science Human-Computer Interaction Lab. University of Maryland College Park MD 20742 United States Xerox PARC Palo Alto CA United States Nielsen Norman Group Northbrook IL United States New Jersey Institute of Technology 4105 Information Technology Center University Heights Newark NJ 07102 United States 2430 39th Street NW Washington DC 20007 United States

ISBN: (纸本)1581134541

The Special Interest Group on computer human interaction (SIGCHI) has had a successful history of 20 years of growth in its numbers and influence. To help guide the continued evolution of the academic discipline and professional community, we invite several senior members to offer their visions for what the field of CHI actually accomplished over the past several decades, and what do we still need to accomplish? What do we need to do differently/ better/smarter? What haven't we tried because the technology, the money or the will wasn't there in the past, but perhaps is now? The CHI field is more than just technology. We understand that our work can have a profound effect on individuals, families, neighborhoods, corporations, and countries. We know that we can influence education, commerce, healthcare, and government. How can we contribute to bridging the digital divides in developed and developing countries? What agendas can we offer for the academic, research, industrial, and civic spheres for the next 20 years? How can we be more ambitious? How can we truly serve human needs?

关键词： Industrial research

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Real-time normalization and feature extraction of 3D face data using curvature characteristics

Real-time normalization and feature extraction of 3D face da...

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10th IEEE International Workshop on Robot and human Interactive Communication, ROMAN 2001

作者： Kim, Tae Kyun Kee, Seok Cheol Kim, Sang Ryong Human Computer Interaction Lab. Samsung Advanced Institute of Technology Korea Republic of

ISBN: (纸本)0780372220

3D data has many advantages over image data. It is robust to illumination change and does not have a scaling problem caused by distance of an object. Also it can be viewed at various angles. Nowadays with advance of 3D capturing tools, laser scanners and high-speed stereo machines, interests in 3D data processing have been increased. But the number of 3D face recognition approaching is still little. The method of normalization and real-time feature extraction of 3D face data(range data) is presented in this paper. The step of normalization of range data is performed first using the symmetry of the defined facial section pattern and characteristics of changes of the pattern according to head rotations. Normalization of the data for head rotations can not only give strong constraints on the positions of facial features but also reduce the dimension of parameters used in the deformable template matching which is done at the next step. Facial features are found in a range image, which is obtained by projection of the normalized range data, using the deformable templates of eyes, nose and mouth. For reliable feature detection surface curvatures, which can represent a local surface shape, are used in this step. We define the energy functions of each template and the conditions of major control points using curvature information. Finally the facial features are positioned in three-dimensional space by back-mapping to the original range data. The back-mapping is the inverse process of getting the facial range image. © 2001 IEEE.

关键词： Feature extraction

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Designing a digital library for young children: An intergenerational partnership

Designing a digital library for young children: An intergene...

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1st ACM/IEEE-CS Joint Conference on Digital Libraries, JCDL 2001

作者： Druin, Allison Bederson, Benjamin B. Hourcade, Juan Pablo Sherman, Lisa Revelle, Glenda Platner, Michele Weng, Stacy Human Computer Interaction Lab. University of Maryland College Park MD 20742 United States

ISBN: (纸本)1581133456

As more information resources become accessible using computers, our digital interfaces to those resources need to be appropriate for all people. However when it comes to digital libraries, the interfaces have typically been designed for older children or adults. Therefore, we have begun to develop a digital library interface developmentally appropriate for young children (ages 5-10 years old). Our prototype system we now call "SearchKids" offers a graphical interface for querying, browsing and reviewing search results. This paper describes our motivation for the research, the design partnership we established between children and adults, our design process, the technology outcomes of our current work, and the lessons we have learned. Copyright 2001 ACM.

关键词： Digital libraries

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PhotoMesa: A zoomable image browser using quantum treemaps and bubblemaps 01

PhotoMesa: A zoomable image browser using quantum treemaps a...

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Proceedings of the 14th Annual ACM Symposium on User Interface Software and Technology (UIST'01)

作者： Bederson, Benjamin B. Human-Computer Interaction Lab. Inst. for Advanced Computer Studies University of Maryland College Park MD 20742 United States

ISBN: (纸本)9781581134384

PhotoMesa is a zoomable image browser that uses a novel treemap algorithm to present large numbers of images grouped by directory, or other availab.e metadata. It uses a new interaction technique for zoomable user interfaces designed for novices and family use that makes it straightforward to navigate through the space of images, and impossible to get lost. PhotoMesa groups images using one of two new algorithms that lay out groups of objects in a 2D space-filling manner. Quantum treemaps are designed for laying out images or other objects of indivisible (quantum) size. They are a variation on existing treemap algorithms in that they guarantee that every generated rectangle will have a width and height that are an integral multiple of an input object size. Bubblemaps also fill space with groups of quantum-sized objects, but generate non-rectangular blobs, and utilize space more efficiently.

关键词： Web browsers

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A storytelling robot for pediatric rehabilitation 00

A storytelling robot for pediatric rehabilitation

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4th International Conference on Assistive Technology (ASSETS 2000)

作者： Plaisant, C. Druin, A. Lathan, C. Dakhane, K. Edwards, K. Vice, J.M. Montemayor, J. Human-Computer Interaction Lab. Univ. of MD Inst. Adv. Comp. Studs. College Park MD 20742 United States

ISBN: (纸本)9781581133134

We are developing a prototype storytelling robot for use with children in rehabilitation. Children can remotely control a large furry robot by using a variety of body sensors adapted to their disability or rehabilitation goal. In doing so, they can teach the robot to act out series of movements or "emotions" and then write stories - using a storytelling software - including those movements in the story. The story can then be "played" by the remote controlled robot, which acts out the story. We believe that this robot can motivate the children and help them reach their therapy goals through therapeutic play, either by exercising muscles or joints (e.g. for physically challenges children) or by reflecting on the stories (e.g. for children with developmental disabilities). We use an innovative design methodology involving children as design partners.

关键词： Pediatrics

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The GOMS SIG: Troubleshooting, lessons learned, novel applications, teaching techniques, & future research

The GOMS SIG: Troubleshooting, lessons learned, novel applic...

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Conference on human Factors in Computing Systems, CHI EA 1999

作者： Gray, Wayne D. John, Bonnie E. Kieras, David E. Boehm-Davis, Deborah A. Human Factors and Applied Cognition George Mason University United States Human-Computer Interaction Institute Carnegie Mellon University United States Artificial Intelligence Lab. EECS Dept. University of Michigan United States

GOMS is many things to many people. It is the only validated analytic usability evaluation method (UEM) in the field of human-computer interaction. It is being used by practitioners at some of the world's largest and some of the smallest software companies. It is a research agenda that is being pursued at universities the world over. It is a task analysis technique with roots in both cognitive psychology and artificial intelligence. It is a flexible tool that can be used with protocol analysis. It is a technique that makes detailed profiling possible. It is an important adjunct to usability testing. It is something that can be done at the early stages of the design process. It is a way of intelligently playing what if games with interface possibilities. It is all of these things and more.

关键词： Usability engineering

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Verb sense disambiguation based on dual distributional similarity

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Natural Language Engineering 1999年第2期5卷 157-170页

作者： Cho, Jeong-Mi Seo, Jungyun Kim, Gil Chang Human & Computer Interaction Lab. Information Processing Sector Samsung Advanced Institute of Technology Suwon 440-600 P.O. Box 111 United States Department of Computer Science Sogang University Seoul 121-742 Sinsu-dong Mapo-gu United States Department of Computer Science Advanced Institute of Science and Technology Taejon 305-701 373–1 Kusong-dong Yusong-gu United States

This paper presents a system for automatic verb sense disambiguation using a small corpus and a Machine-Readable Dictionary (MRD) in Korean. The system learns a set of typical uses listed in the MRD usage examples for each of the senses of a polysemous verb in the MRD definitions using verb-object co-occurrences acquired from the corpus. This paper concentrates on the problem of data sparseness in two ways. First, by extending word similarity measures from direct co-occurrences to co-occurrences of co-occurring words, we compute the word similarities using non co-occurring words but co-occurring clusters. Secondly, we acquire IS-A relations of nouns from the MRD definitions. It is possible to roughly cluster the nouns by the identification of the IS-A relationship. Using these methods, two words may be considered similar even if they do not share any word elements. Experiments show that this method can learn from a very small training corpus, achieving over an 86% correct disambiguation performance without any restriction on a word's senses. © 1999, Cambridge University Press. All rights reserved.

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Is ActiMates Barney ethical? the potential good, bad, and ugly of interactive plush toys

Is ActiMates Barney ethical? the potential good, bad, and ug...

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Conference on human Factors in Computing Systems, CHI EA 1999

作者： Fogg, B.J. Cypher, Allen Druin, Allison Friedman, Batya Strommen, Erik Persuasive Technology Lab. CSLI Stanford University Box 8338 Stanford CA 94309 United States Stagecast Software Inc. 580 College Avenue Palo Alto CA 94306 United States Human-Computer Interaction Lab. College of Education University of Maryland College Park MD 20742 United States Dept. of Mathematics and Computer Science Colby Coilege Waterville ME 04901 United States Microsoft Corporation One Microsoft Way Redmond WA 98052 United States

Interactive plush toys, such as ActiMates Barney, raise new ethical concerns that we as HCI professionals need to address and understand. This panel is designed to bring those concerns to the forefront and allow panelists and audience members to debate key issues. The panel includes people with expertise in creating interactive plush toys, creating software for children, and investigating ethical issues of technology.

关键词： Toys

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On the use of LSF intermodel interlacing property for spectral quantization 6

On the use of LSF intermodel interlacing property for spectr...

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6th IEEE Workshop on Speech Coding

作者： Lee, Mi Suk Kim, Hong Kook Choi, Seung Ho Lee, Hwang Soo Dept. of Electrical Eng. Korea Advanced Institute of Science and Technology Taejon305-701 Korea Republic of ATandT Labs Research 180 Park Avenue Florham ParkNJ07932 United States Human and Computer Interaction Lab. Samsung Advanced Institute of Technology Kyungki-Do449-712 Korea Republic of Central RandD Center SK Telecom 58-4 Hwaam-Dong Yusong-Gu Taejon305-348 Korea Republic of

ISBN: (纸本)0780356519

The line spectral frequencies (LSFs) extracted from successive analysis orders are interlaced with each other. This intermodel interlacing property gives a new relationship between the closeness of LSFs and their spectral sensitivities, which enables us to propose a weighting function for LSF distortion measurement. By applying the proposed weighting function to an LSF quantizer, we can achieve better performance than when using the conventional heuristic functions. Moreover, the complexity of the proposed weighting function is much lower than that of the optimal weighting function, while their performances are almost the same. © 1999 IEEE.

关键词： Spectroscopy

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Adaptive encoding of fixed codebook in CELP coders

Adaptive encoding of fixed codebook in CELP coders

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1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998

作者： Kim, Hong Kook Human and Computer Interaction Lab. Information Processing Sector Samsung Advanced Institute of Technology San 14 Nongseo-Ri Kiheung-Eup Yongin-City Kyungki-Do 449-712 Korea Republic of

ISBN: (纸本)0780344286

We propose an adaptive encoding method of fixed codebook in CELP coders and implement an adaptive fixed code excited linear prediction (AF-CELP) speech coder. The AF-CELP exploits the fact that the fixed codebook contribution to the speech signal is also periodic as the adaptive codebook (or pitch filter) contribution. By modeling the fixed codebook with the pitch lag and the gain from the adaptive codebook, the AF-CELP can be implemented at low bit rates as well as low complexity. Listening tests show that a 6.4 kbit/s AF-CELP has a comparable quality to the 8 kbit/s CS-ACELP. © 1998 IEEE.

关键词： Signal encoding

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