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1st World Summit on the Knowledge Society, WSKS 2008

作者： López, Juan Miguel Gil, Rosa García, Roberto Cearreta, Idoia Garay, Nestor GRIHO Research Group Universitat de Lleida Lleida Spain Laboratory of Human-Computer Interaction for Special Needs University of the Basque Country Donostia-San Sebastian Spain

ISBN: (纸本)3540877800

The study of emotion in human beings has traditionally been a research interest area in disciplines such as psychology and sociology. The appearance of affective computing paradigm has made it possible to include findings from these disciplines in the development of affective interfaces. Still, there is a lack of applications that take emotion related aspects into account. This situation is mainly due to the great amount of proposed theoretical models and the complexity of human emotions. Besides, the importance that mobile computing area is acquiring has made necessary to bear context related aspects in mind. The proposal presented in this paper is based on a generic ontology for describing emotions and their detection and expression systems taking contextual and multimodal elements into account. The ontology is proposed as a way to develop a formal model that can be easily computerized. Moreover, it is based on a standard, the Web Ontology Language (OWL), which also makes ontologies easily shareable and extensible. Once formalized as an ontology, the knowledge about emotions is used in order to make computers more accessible, personalised and adapted to user needs. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Ontology

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Virtual reality technology assisting communication apprehension

Virtual reality technology assisting communication apprehens...

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2008 International Conference on computer Graphics and Virtual Reality, CGVR 2008

作者： North, Max M. Hill, Jeremy Aikhuele, Ainonehi North, Sarah M. Virtual Reality Technology Laboratory Engineering Technology and Management Southern Polytechnic State University United States Human-Computer Interaction Group Computer and Information Sciences Department Clark Atlanta University United States

ISBN: (纸本)1601320574

This study investigates the effectiveness of the application of Virtual Reality Training (VRT) in the treatment of Communication Apprehension (CA). The participants were thirty undergraduate volunteer students enrolled at the university level. Virtual reality software and hardware were used to create a virtual auditorium scene for this training. Over five sessions, participants were subjected to virtual public speaking scenarios of varying intensity. Subjective Units of Disturbance (SUD) scale was used to measure the participants' anxiety levels. The average level of anxiety reported during post-test was significantly less than that of the pre-test. The preliminary results indicated that VRT could be used as an effective method for reducing CA in clients and allow them to become involved in discussions and presentations more comfortably.

关键词： Virtual reality

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Models to facilitate the development of affective resources 08

Models to facilitate the development of affective resources

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15th European Conference on Cognitive Ergonomics the Ergonomics of Cool interaction, ECCE 2008

作者： Cearreta, Idoia López, Juan Miguel Garay-Vitoria, Nestor Laboratory of Human-Computer Interaction for Special Needs Informatika Fakultatea Manuel Lardizabal 1 E-20018 Donostia Spain GRIHO Research Group University of Lleida Escola Politécnica Superior Jaume II 69 E-25001 Lleida Spain

In this paper an affective interaction model is presented. This model has been developed in order to facilitate the creation of affective resources. In this case, a conversational system able to transmit emotions has ... 详细信息

ISBN: (纸本)9781605583990

关键词： emotion models conversational systems affective computing

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Automatic Detection of Facial Landmarks from AU-coded Expressive Facial Images

Automatic Detection of Facial Landmarks from AU-coded Expres...

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International Conference on Image Analysis and Processing

作者： Yulia Gizatdinova Veikko Surakka Research Group for Emotions Sociality and Computing Tampere Unit for Computer-Human Interaction Department of Computer Sciences University of Tampere Finland

The present aim was to develop a fully automatic feature-based method for expression-invariant detection of facial landmarks from still facial images. It is a continuation of our earlier work where we found that some certain muscle contractions made a deteriorating effect on the feature-based landmark detection especially in the lower face. Taking into account this crucial facial behavior, we introduced improvements to the method that allowed facial landmarks to be fully automatically detected from expressive images of high complexity. In the method, information on local oriented edges was utilized to compose edge maps of the image at two levels of resolution. The landmark candidates resulted from this step were further verified by edge orientation matching. We used knowledge on face geometry to find the proper spatial arrangement of the candidates. The results obtained demonstrated a high overall performance of the method while testing a wide range official displays.

关键词： Face detection Image edge detection Nose Mouth Muscles Facial features Eyes Spatial resolution Eyebrows Gold

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Editorial: Knowledge engineering, semantics, and signal processing in audio - visual information retrieval

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IEEE Transactions on Circuits and Systems for Video Technology 2007年第3期17卷 257-258页

作者： Izquierdo, Ebroul Zhang, Jian Sikora, Thomas Huang, Thomas S. Department of Electrical Engineering Queen Mary University of London London El 4NS United Kingdom Sydney Australia School of Computer Science and Engineering University of New South Wales Australia Communication Systems Group Technical University Berlin Berlin Germany ITG University of Illinois at Urbana-Champaign United States Department of Electrical and Computer Engineering Coordinated Science Laboratory United States Image Formation and Processing Group Beckman Institute for Advanced Science and Technology United States Institute's Major Research Theme Human Computer Intelligent Interaction National Academy of Engineering Chinese Academies of Engineering and Sciences China International Association of Pattern Recognition Optical Society of American United States

No abstract available

关键词： Special issues and sections Knowledge engineering Information retrieval Audio-visual systems

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Joint Correspondence and Background Modeling Based on Tree Dynamic Programming

Joint Correspondence and Background Modeling Based on Tree D...

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International Conference on Pattern Recognition

作者： N.I. Rao Huijun Di Guangyou Xu Pervasive Computing Laboratory Institute of Human Computer Interaction Department of Computer Engineering Tsinghua University Beijing China

Foreground segmentation with moving camera is a challenging task due to the presence of parallax effect, registration error, scene variations in out door, and etc. Currently, background modeling techniques either assumes correspondence among pixels in concurrent frames or do not model it explicitly. The contribution by this paper is in two folds. First, we achieve a new background model by introducing correspondence into it. Second, we pose foreground segmentation and correspondence estimation as a labeling problem. Spatial context is enforced in shape of tree structure and global optimal label at each node is computed using dynamic programming. Finally, based on the optimal correspondence, background model is updated. Resultantly, parallax effect and registration error are reduced significantly. Primary experiments proved our algorithm to be robust in performance

关键词： Dynamic programming Cameras Layout Labeling Tree data structures Pervasive computing human computer interaction computer errors Shape Robustness

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The impact of pre-patterns on the design of digital home applications

The impact of pre-patterns on the design of digital home app...

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Proceedings of the Conference on Designing Interactive Systems, DIS2006

作者： Saponas, T. Scott Prabaker, Madhu K. Abowd, Gregory D. Landay, James A. DUB Group Computer Science and Eng. University of Washington Seattle WA 98105 United States Intel Research Seattle 1100 NE 45th Street Seattle WA 98105 United States Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh PA 15213 United States College of Computing GVU Center Georgia Institute of Technology Atlanta GA United States

ISBN: (纸本)1595933417

Recent research suggests design pre-patterns, structured collections of evidence-based research and design knowledge, provide a useful resource for design activities in emerging application domains. This paper extends previous research by exploring the impact of pre-patterns and tools to support pre-pattern exploration for the domain of ubiquitous computing in the home. We conducted an empirical study of 44 designers engaged in a two hour concentrated brainstorming and design task for the home of the future. Our results show pre-patterns are an easily adopted resource for designers that can impact even the earliest of design activities. We also provide insights for future development of pre-patterns based on designer feedback. Copyright 2006 ACM.

关键词： computer graphics

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A study of factors affecting the utility of implicit relevance feedback

A study of factors affecting the utility of implicit relevan...

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28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2005

作者： White, Ryen W. Ruthven, Ian Jose, Joemon M. Human-Computer Interaction Laboratory Institute for Advanced Computer Studies University of Maryland College Park MD 20742 United States Department of Computer and Information Sciences University of Strathclyde Glasgow G1 1XH United Kingdom Department of Computing Science University of Glasgow Glasgow G12 8RZ United Kingdom

ISBN: (纸本)1595930345

Implicit relevance feedback (IRF) is the process by which a search system unobtrusively gathers evidence on searcher interests from their interaction with the system. IRF is a new method of gathering information on user interest and, if IRF is to be used in operational IR systems, it is important to establish when it performs well and when it performs poorly. In this paper we investigate how the use and effectiveness of IRF is affected by three factors: search task complexity, the search experience of the user and the stage in the search. Our findings suggest that all three of these factors contribute to the utility of IRF. © 2005 ACM.

关键词： Search engines

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Choosing friends carefully: Allies for critical computing 05

Choosing friends carefully: Allies for critical computing

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4th Decennial Aarhus Conference on Critical computing - Between Sense and Sensibility

作者： Dearden, Andy Walker, Steve Watts, Leon Communication and Computing Research Centre Sheffield Hallam University Sheffield S1 1WB United Kingdom School of Information Management Leeds Metropolitan University Headingley Leeds LS6 3QS United Kingdom Human-Computer Interaction Group Department of Computer Science University of Bath Bath BA2 7AY United Kingdom

ISBN: (纸本)1595932038

In this paper, we argue firstly that researchers in critical computing should address the specific information and communication technology (ICT) needs and activities of those agencies concerned with emancipatory issues. Secondly, we argue that a critical perspective, explicitly foregrounding empowerment and emancipatory concerns, forms a basis for emphasising the practice of individuals, groups and organisations, rather than purely focusing on organisational form in social *** discuss this context of social action, identifying some relevant ICT-related challenges. We identify three themes that highlight factors that differentiate ICT support for social action groups from the setting of conventional business and service organisations: Free / Libre Open-Source Software, techniques and technologies for engagement through storytelling, and learning and evaluation in social action. © 2005 ACM.

关键词： Open systems

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Editorial

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International Journal of Web Engineering and Technology 2005年第2-3期2卷 145-147页

作者： Frasincar, Flavius Houben, Geert-Jan Van Ossenbruggen, Jacco Eindhoven University of Technology PO Box 513 NL-5600 MB Eindhoven Netherlands Centrum voor Wiskunde en Informatica PO Box 94079 NL-1090 GB Amsterdam Netherlands Department of Information Systems Erasmus University Rotterdam Netherlands Department of Information Systems Vrije Universiteit Brussel Belgium WISE Laboratory for Web and Information System Engineering Netherlands Technische Universiteit Eindhoven Netherlands CWI Netherlands Multimedia and Human-computer Interaction Group Netherlands

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