46 research outputs found

    Observing professionals taking notes on screen

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    In this study 38 participants wrote a piece of advice based on reading and annotating information from an extensive Web site. Half of the participants took notes in a separate window, the other half used an advanced annotation tool. In text annotations were far more used than separate notes. The frequency with which features of the note-taking tool notes was used depends on the phase in the process. The association between process phase and the use of features is less clear for the annotation tool. Requirements are formulated for the design of annotation tools

    User Motives for Tagging Video Content

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    User tagging of video content provides many possibilities for indexing and personalization. To exploit these possibilities, users must be willing to tag the video content they watch. In this paper we present the first results of our ongoing research, by constructing an overview of user motives to tag video content. We present the results of a study in which we elicited possible user motives to tag movies on the internet. The identified motives include the categories ‘indexing’, ‘socializing’ and ‘communicating’. Finally, user barriers to tag video content are discussed

    Highlighting professional writing : on screen note-taking as part of writing from sources by professionals

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    Professionals in organizations often make use of source material in order to write an evaluation, a report or a recommendation. This task, also known as writing-from-sources, is increasingly being performed, either totally or partially, in a digital environment. Reasons for\ud this could be that the source material is too extensive, or unable to be effectively searched if it were to be printed.\ud In this dissertation we study the writing-from-sources task based on the behaviour of professionals who have been asked to write a text, in an on-screen environment, based on a website containing information while being allowed to make notes using a note-taking tool

    A Crowdsourcing Procedure for the Discovery of Non-Obvious Attributes of Social Image

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    Research on mid-level image representations has conventionally concentrated relatively obvious attributes and overlooked non-obvious attributes, i.e., characteristics that are not readily observable when images are viewed independently of their context or function. Non-obvious attributes are not necessarily easily nameable, but nonetheless they play a systematic role in people`s interpretation of images. Clusters of related non-obvious attributes, called interpretation dimensions, emerge when people are asked to compare images, and provide important insight on aspects of social images that are considered relevant. In contrast to aesthetic or affective approaches to image analysis, non-obvious attributes are not related to the personal perspective of the viewer. Instead, they encode a conventional understanding of the world, which is tacit, rather than explicitly expressed. This paper introduces a procedure for discovering non-obvious attributes using crowdsourcing. We discuss this procedure using a concrete example of a crowdsourcing task on Amazon Mechanical Turk carried out in the domain of fashion. An analysis comparing discovered non-obvious attributes with user tags demonstrated the added value delivered by our procedure.Comment: 6 pages, 3 figures, Extended version of paper to appear in CrowdMM 2014: International ACM Workshop on Crowdsourcing for Multimedi

    Designing Guidelines for Smart City Collaboration Tools

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    Cities around the world have started pilots to experiment with Information and Communication Technologies (ICTs) to tackle urban problems, optimize city services and enhance the quality of life for citizens. At the moment, many smart city pilots have difficulty scaling up beyond the pilot stage. Effective collaboration between quadruple-helix partners in the smart city is both crucial and challenging for promoting the development, implementation, and scaling-up of smart city pilots. However, professionals in the smart city field lack easy-to-use tools to resolve smart collaborative governance challenges. To bridge this gap, this paper will use a Design Science Research (DSR) methodology to develop generic high-level guidelines for smart collaborative governance tools in the smart city context. These generic high-level guidelines also include guidelines that help to resolve dilemmas in the design of collaboration tools regarding their desired outcomes, complexity, and scope

    EnCOMPASS - An integrative approach to behavioural change for energy saving

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    This paper presents the research objectives of the enCOMPASS project, which aims at implementing and validating an integrated socio-technical approach to behavioural change for energy saving. To this end, innovative user-friendly digital tools will be developed to 1) make energy data consumption available and understandable for different types of users and stakeholders (household residents, office employees, school pupils, building managers, utilities, ICT providers) and to 2) empower them to collaborate in order to achieve energy savings and manage their energy needs in efficient, cost-effective and comfort-preserving ways. The project will demonstrate how this can be achieved with a novel approach that integrates user-centered visualisation of energy data from smart sensors and user-generated information with context-aware collaborative recommendations for energy saving, intelligent control and adaptive gamified incentives enabling effective and sustained behavioural change

    A survey on the design of gamified systems for energy and water sustainability

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    Abstract In a world affected by the constant growth and concentration of the population in urban areas, the problem of preserving natural resources has become a priority. A promising approach to resource conservation is demand management, i.e., the ability to positively influence the behaviour of the population towards more sustainable consumption. Information and Communication Technology (ICT) tools have shown a great potential in influencing consumers’ behaviour, which could be exploited for the common good. However, the design of so-called persuasive systems for environmental purposes is a challenging task, because it cannot be based solely on the utilitarian motivation of users, but must be able to trigger a broader range of engagement factors deeply rooted in the human psychology. In this paper, we review the main design principles and models at the base of a class of persuasive system that exploits gamification and Games with a Purpose (GWAPs) to engage users towards sustainability; we identify the most commonly used incentive mechanisms for inducing behavioural changes; and present a selection of gamified systems for energy and water conservation. From such a survey, we distill design guidelines to be applied in the design of demand management socio-technical systems

    Resectability and Ablatability Criteria for the Treatment of Liver Only Colorectal Metastases:Multidisciplinary Consensus Document from the COLLISION Trial Group

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    The guidelines for metastatic colorectal cancer crudely state that the best local treatment should be selected from a 'toolbox' of techniques according to patient- and treatment-related factors. We created an interdisciplinary, consensus-based algorithm with specific resectability and ablatability criteria for the treatment of colorectal liver metastases (CRLM). To pursue consensus, members of the multidisciplinary COLLISION and COLDFIRE trial expert panel employed the RAND appropriateness method (RAM). Statements regarding patient, disease, tumor and treatment characteristics were categorized as appropriate, equipoise or inappropriate. Patients with ECOG≤2, ASA≤3 and Charlson comorbidity index ≤8 should be considered fit for curative-intent local therapy. When easily resectable and/or ablatable (stage IVa), (neo)adjuvant systemic therapy is not indicated. When requiring major hepatectomy (stage IVb), neo-adjuvant systemic therapy is appropriate for early metachronous disease and to reduce procedural risk. To downstage patients (stage IVc), downsizing induction systemic therapy and/or future remnant augmentation is advised. Disease can only be deemed permanently unsuitable for local therapy if downstaging failed (stage IVd). Liver resection remains the gold standard. Thermal ablation is reserved for unresectable CRLM, deep-seated resectable CRLM and can be considered when patients are in poor health. Irreversible electroporation and stereotactic body radiotherapy can be considered for unresectable perihilar and perivascular CRLM 0-5cm. This consensus document provides per-patient and per-tumor resectability and ablatability criteria for the treatment of CRLM. These criteria are intended to aid tumor board discussions, improve consistency when designing prospective trials and advance intersociety communications. Areas where consensus is lacking warrant future comparative studies.</p
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