197 research outputs found

    A hybrid model for capturing implicit spatial knowledge

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    This paper proposes a machine learning-based approach for capturing rules embedded in users’ movement paths while navigating in Virtual Environments (VEs). It is argued that this methodology and the set of navigational rules which it provides should be regarded as a starting point for designing adaptive VEs able to provide navigation support. This is a major contribution of this work, given that the up-to-date adaptivity for navigable VEs has been primarily delivered through the manipulation of navigational cues with little reference to the user model of navigation

    Exploring the Design Space

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    Software Usability:A Comparison Between Two Tree-Structured Data Transformation Languages

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    This paper presents the results of a software usability study, involving both subjective and objective evaluation. It compares a popular XML data transformation language (XSLT) and a general purpose rule-based tree manipulation language which addresses some of the XML and XSLT limitations. The benefits of the evaluation study are discussed

    Investigating Emotions in Creative Design

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    A wealth of research has suggested that emotions play a significant role in the creative problem solving process, but less work has focused on investigating the role of emotions in the design process. This is surprising given that creative problem solving lies at the heart of the design processes. In an exploratory study we interviewed 9 expert designers about their emotions during the design process. The content analysis allowed us to identify the various types of emotions relevant in the design process and to extend Wallas’ model of creative problem solving with emotional components for each of its stages. In addition, we identified two important roles of emotions in design and several ways in which expert designers regulate their emotions. We discussed the theoretical and practical applications of our work

    Enhancing Creativity in Interaction Design: Alternative Design Brief

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    This paper offers a critique of the design brief as it is currently used in teaching interaction design and proposes an alternative way of developing it. Such a design brief requires the exploration of alternative application domains for an already developed technology. The paper presents a case study where such a novel type of design brief has been offered to the students taking part in a collaborative design project and discusses how it supported divergent thinking and creativity as well as helped enhancing the learning objectives

    Personal Values in HCI Research

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    This paper describes a broad overview of the core values underpinning my research agenda for more than a decade. It draws from value research, research values, and values in HCI, and concludes with some insights on the challenges and opportunities of developing a value-driven personal research agenda

    A Performance Analysis of Movement Patterns

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    This study investigates the differences in movement patterns followed by users navigating within a virtual environment. The analysis has been carried out between two groups of users, identified on the basis of their performance on a search task. Results indicate significant differences between efficient and inefficient navigators’ trajectories. They are related to rotational, translational and localised-landmarks behaviour. These findings are discussed in the light of theoretical outcomes provided by environmental psychology

    Technologies for employability

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    The graduate job market is highly competitive and prospective candidates could greatly benefit from new tools for self presentation. This paper explores one such tool, namely the video CV and its value for graduate employability. We report on 16 interviews with prospective employers and career coaches to investigate its benefits and challenges. Findings suggest its specific characteristics relating to the script content, performance and format. We conclude with several suggestions for supporting graduates’ preparation of video CVs including awareness of their challenges, provision of professional help, and dedicated training sessions

    Agent mediation and management of virtual communities: a redefinition of the traditional community concept

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    The paper explores the evolution of the concept of community in the light of computer mediated immersive virtual environments. The traditional concept of community has become strained in its attempts to capture the evolving virtual community. We believe the concept of the virtual community is of paramount importance and examine the extent to which this is being redefined to cater for it. We examine the management and mediation of such an environment and specifically the social process associated with the cohabited users. We advocate the use of multi-agent systems in delivering this functionalit

    Mobile Agents for Mobile Tourists: A User Evaluation of Gulliver's Genie

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    How mobile computing applications and services may be best designed, implemented and deployed remains the subject of much research. One alternative approach to developing software for mobile users that is receiving increasing attention from the research community is that of one based on intelligent agents. Recent advances in mobile computing technology have made such an approach feasible. We present an overview of the design and implementation of an archetypical mobile computing application, namely that of an electronic tourist guide. This guide is unique in that it comprises a suite of intelligent agents that conform to the strong intentional stance. However, the focus of this paper is primarily concerned with the results of detailed user evaluations conducted on this system. Within the literature, comprehensive evaluations of mobile context-sensitive systems are sparse and therefore, this paper seeks, in part, to address this deficiency
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