Reacting to challenges that have been observed in human-computerinteraction (HCI) education, as well as the multidisciplinary design, science, and engineering underpinnings, we investigate a pedagogical approach base...
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ISBN:
(纸本)1581137982
Reacting to challenges that have been observed in human-computerinteraction (HCI) education, as well as the multidisciplinary design, science, and engineering underpinnings, we investigate a pedagogical approach based on case methods. Our study of various case method techniques in an undergraduate HCI class provides insights into challenges that can be expected in the employment of case methods, student learning outcomes, and considerations for HCI curriculum planning. In general, case methods show great promise with a wide variety of topics, and we present broad recommendations for future work that will improve integration of HCI professional practice, research, and education.
This paper proposes a fast and robust framework for incrementally detecting text on road signs from natural scene video. The new framework makes two main contributions. First, the framework applies a Divide-and-Conque...
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ISBN:
(纸本)1581138938
This paper proposes a fast and robust framework for incrementally detecting text on road signs from natural scene video. The new framework makes two main contributions. First, the framework applies a Divide-and-Conquer strategy to decompose the original task into two sub-tasks, that is, localization of road signs and detection of text. The algorithms for the two sub-tasks are smoothly incorporated into a unified framework through a real time tracking algorithm. Second, the framework provides a novel way for text detection from video by integrating 2D features in each video frame (e.g., color, edges, texture) with 3D information available in a video sequence (e.g., object structure). The feasibility of the proposed framework has been evaluated on the video sequences captured from a moving vehicle. The new framework can be applied to a driving assistant system and other tasks of text detection from video.
This paper presents work aimed at supporting the design of temporal aspects of socio-technical systems. Time Design is a framework for (a) analysing and representing temporal properties of the work domain, (b) generat...
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In spoken dialogue applications dialogue management has conventionally been realized with a single monolithic dialogue manager implementing a comprehensive dialogue control model. We present a highly distributed syste...
In spoken dialogue applications dialogue management has conventionally been realized with a single monolithic dialogue manager implementing a comprehensive dialogue control model. We present a highly distributed system structure that enables the integration of different dialogue control approaches to handle spoken dialogues. With this structure it is possible to integrate multiple dialogue control models into a single working application in a flexible fashion. The main principle is that all the processing is distributed into many compact agents that focus on single tasks. The agents process the information independently and share all the information via shared information storage. We present the principles that enable such distribution. In addition, a multilingual example application, AthosMail, is presented.
Evaluating distributed CSCW applications is a difficult endeavor. Frameworks and methodologies for structuring this type of evaluation have become a central concern for CSCW researchers. In this paper we describe the ...
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Evaluating distributed CSCW applications is a difficult endeavor. Frameworks and methodologies for structuring this type of evaluation have become a central concern for CSCW researchers. In this paper we describe the problems involved in evaluating remote collaborations, and we review some of the more prominent conceptual frameworks of group interaction that have driven CSCW evaluation in the past. A multifaceted evaluation framework is presented that approaches the problem from the relationships underlying joint awareness, communication, collaboration, coordination, and work coupling. Finally, recommendations for carrying out multifaceted evaluations of remote interaction are provided. Copyright 2004 ACM.
作者：
Surakka, VeikkoIlli, MarkoIsokoski, PoikaResearch Group for Emotions
Sociality and Computing Tampere Unit for Computer— Human Interaction Department of Computer and Information Sciences University of Tampere Department of Clinical Neurophysiology Tampere University Hospital Tampere FIN-33014 P.O. Box 2000 FIN-33521 Finland Research Group for Emotions
Sociality and Computing Tampere Unit for Computer— Human Interaction Department of Computer and Information Sciences University of Tampere Tampere FIN-33014 Finland
The present aim was to study a new technique for human—computerinteraction. It combined the use of two modalities, voluntary gaze direction and voluntary facial muscle activation for object pointing and selection. F...
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Recent evidence on the performance benefits of expanding targets during manual pointing raises a provocative question: Can a similar effect be expected for eye gaze interaction? We present two experiments to examine t...
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Many failures in long-term collaboration occur because of a lack of activity awareness. Activity awareness is a broad concept that involves awareness of synchronous and asynchronous interactions over extended time per...
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ISBN:
(纸本)1581138571
Many failures in long-term collaboration occur because of a lack of activity awareness. Activity awareness is a broad concept that involves awareness of synchronous and asynchronous interactions over extended time periods. We describe a procedure to evaluate activity awareness and collaborative activities in a controlled setting. The activities used are modeled on real-world collaborations documented earlier in a field study. We developed an experimental method to study these activity awareness problems in the laboratory. Participants worked on a simulated long-term project in the laboratory over multiple experimental sessions with a confederate, who partially scripted activities and probes. We present evidence showing that this method represents a valid model of real collaboration, based on participants' active engagement, lively negotiation, and awareness difficulties. We found that having the ability to define, reproduce, and systematically manipulate collaborative situations allowed us to assess the effect of realistic conditions on activity awareness in remote collaboration. Copyright 2004 ACM.
Biodiversity databases have recently become widely available to the public and to other researchers. To retrieve information from these resources, users must understand the underlying data schemas even though they oft...
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