139,060 research outputs found

    Privacy, security, and trust issues in smart environments

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    Recent advances in networking, handheld computing and sensor technologies have driven forward research towards the realisation of Mark Weiser's dream of calm and ubiquitous computing (variously called pervasive computing, ambient computing, active spaces, the disappearing computer or context-aware computing). In turn, this has led to the emergence of smart environments as one significant facet of research in this domain. A smart environment, or space, is a region of the real world that is extensively equipped with sensors, actuators and computing components [1]. In effect the smart space becomes a part of a larger information system: with all actions within the space potentially affecting the underlying computer applications, which may themselves affect the space through the actuators. Such smart environments have tremendous potential within many application areas to improve the utility of a space. Consider the potential offered by a smart environment that prolongs the time an elderly or infirm person can live an independent life or the potential offered by a smart environment that supports vicarious learning

    Modeling inertia causatives:validating in the password manager adoption context

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    Cyber criminals are benefiting from the fact that people do not take the required precautions to protect their devices and communications. It is the equivalent of leaving their home’s front door unlocked and unguarded, something no one would do. Many efforts are made by governments and other bodies to raise awareness, but this often seems to fall on deaf ears. People seem to resist changing their existing cyber security practices: they demonstrate inertia. Here, we propose a model and instrument for investigating the factors that contribute towards this phenomenon

    Spreading in Social Systems: Reflections

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    In this final chapter, we consider the state-of-the-art for spreading in social systems and discuss the future of the field. As part of this reflection, we identify a set of key challenges ahead. The challenges include the following questions: how can we improve the quality, quantity, extent, and accessibility of datasets? How can we extract more information from limited datasets? How can we take individual cognition and decision making processes into account? How can we incorporate other complexity of the real contagion processes? Finally, how can we translate research into positive real-world impact? In the following, we provide more context for each of these open questions.Comment: 7 pages, chapter to appear in "Spreading Dynamics in Social Systems"; Eds. Sune Lehmann and Yong-Yeol Ahn, Springer Natur

    Determinants and Consequences of Survey Respondents� Social Desirability Beliefs about Racial Attitudes

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    In this article we analyze beliefs about the social desirability of ten racial attitude items from the German General Social Survey (ALLBUS). These beliefs indicate that the items, as well as respondents with regard to different sex, age and education, are differently prone to social desirability bias. Demographic response differences may thus only reflect differences in social desirability bias. We matched the desirability differences between the items and demographic groups with the racial attitude responses from the independent, nationwide sample of the ALLBUS survey in 1996. The desirability beliefs obtained from our urban, West German sample predicted the attitude answers, and this predictability was stronger for ALLBUS respondents with the same characteristics. Our results suggest that the ALLBUS data is subject to social desirability bias, that particular items are more strongly affected, and that differences in the attitude reports according to the respondents� age and education should be interpreted with caution.

    The Interdependence of Determinants for the Strength and Direction of Social Desirability Bias in Racial Attitude Surveys

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    Empirical evidence suggests that the respondents� approval motive, their desirability beliefs and the privacy of the response situation affects respondents� susceptibility to social desirability bias. Previous research has analyzed the explanatory power of these factors separately and has not taken their possible interdependence as determinants for social desirability bias into account. This article tests the prediction from rational-choice theory that a strong approval motive, clear differences in the perceived desirability of response options and a lack of privacy are all necessary but not sufficient conditions for social desirability bias. According to the empirical results from our first study a three-way interaction between the analyzed factors predicts respondents� racial attitude reports. However, since attitude answers and desirability beliefs were collected in the same interview, the observed associations may be an artifact due to subjects� sensitization for social desirability concerns. This possibility is tested in a second study, where only racial attitude answers were collected under conditions of varying response privacy. Aggregated response differences between the utilized attitude items and respondents� social group affiliation were matched with equivalent differences in the desirability beliefs found in the first study. The results from the main study were replicated with this independent sample of respondents.
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