31,572 research outputs found

    Towards a Pervasive Access Control within Video Surveillance Systems

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    Part 1: Cross-Domain Conference and Workshop on Multidisciplinary Research and Practice for Information Systems (CD-ARES 2013)International audienceThis paper addresses two emerging challenges that multimedia distributed systems have to deal with: the user’s constant mobility and the information’s sensitivity. The systems have to adapt, in real time, to the user’s context and situation in order to provide him with relevant results without breaking the security and privacy policies. Distributed multimedia systems, such as the oneproposed by the LINDO project, do not generally consider both issues. In this paper, we apply an access control layer on top of the LINDO architecture that takes into consideration the user’s context and situation and recommends alternative resources to the user when he is facing an important situation. The proposed solution was implemented and tested in a video surveillance use case

    Towards a Pervasive Access Control within Video Surveillance Systems

    Get PDF
    This paper addresses two emerging challenges that multimedia distributed systems have to deal with: the user’s constant mobility and the information’s sensitivity. The systems have to adapt, in real time, to the user’s context and situation in order to provide him with relevant results without breaking the security and privacy policies. Distributed multimedia systems, such as the oneproposed by the LINDO project, do not generally consider both issues. In this paper, we apply an access control layer on top of the LINDO architecture that takes into consideration the user’s context and situation and recommends alternative resources to the user when he is facing an important situation. The proposed solution was implemented and tested in a video surveillance use case

    THE DANGERS OF FIGHTING TERRORISM WITH TECHNOCOMMUNITARIANISM: CONSTITUTIONAL PROTECTIONS OF FREE EXPRESSION, EXPLORATION, AND UNMONITORED ACTIVITY IN URBAN SPACES

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    Part I of this article examines how some commentators can plausibly argue that constitutional liberty and privacy protections do not protect the individual liberty and privacy that modern individuals have come to expect in many public spaces, particularly in urban environments. Constitutional liberalism, this section points out, makes this question a difficult one, because it is marked by scrupulous neutrality towards different visions of “the good life.” In other words, the constitutional order does not condemn those who choose a communitarian way of life and favor those who prefer individualism. Rather, it tolerates both of these (and other) preferences about one’s social and cultural environment, and leaves citizens free to opt for the life of their choice. Part II suggests that it is difficult to make sense of our modern jurisprudence of First Amendment rights, especially as they relate to anonymous communication and association on the Internet and elsewhere, unless one allows room in our constitutional law for a jurisprudence that “captures” and preserves social incarnations of liberty and privacy that were not yet in existence when theConstitution was drafted. Therefore, it is possible for for courts and others to find that freedom-enabling institutions that did not exist earlier in American history, and might cease to exist in the future, deserve certain constitutional protection while they are here. Part III explains that like the virtual liberation offered by the Internet, city life offered and continues to offer an invaluable refuge for substantial expressive activity and intellectual exploration that would be far more elusive without this type of urban existence. It provides individuals with an incredibly rich bazaar of ideas, and allows them to browse among these deas, substantially free from outside monitoring or control. While First Amendment law does not single out urban environments for protection, it protects such environments indirectly by preserving certain opportunities that are characteristic of modern urban life: opportunities for giving speeches to large crowds, for confronting strangers with ideas they may find unfamiliar or provocative, or for speaking or gathering information in the anonymity of the crowd

    Filtering, Piracy Surveillance and Disobedience

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    There has always been a cyclical relationship between the prevention of piracy and the protection of civil liberties. While civil liberties advocates previously warned about the aggressive nature of copyright protection initiatives, more recently, a number of major players in the music industry have eventually ceded to less direct forms of control over consumer behavior. As more aggressive forms of consumer control, like litigation, have receded, we have also seen a rise in more passive forms of consumer surveillance. Moreover, even as technology has developed more perfect means for filtering and surveillance over online piracy, a number of major players have opted in favor of “tolerated use,” a term coined by Professor Tim Wu to denote the allowance of uses that may be otherwise infringing, but that are allowed to exist for public use and enjoyment. Thus, while the eventual specter of copyright enforcement and monitoring remains a pervasive digital reality, the market may fuel a broad degree of consumer freedom through the toleration or taxation of certain kinds of activities. This Article is meant largely to address and to evaluate these shifts by drawing attention to the unique confluence of these two important moments: the growth of tolerated uses, coupled with an increasing trend towards more passive forms of piracy surveillance in light of the balance between copyright enforcement and civil liberties. The content industries may draw upon a broad definition of disobedience in their campaigns to educate the public about copyright law, but the market’s allowance of DRM-free content suggests an altogether different definition. The divide in turn between copyright enforcement and civil liberties results in a perfect storm of uncertainty, suggesting the development of an even further division between the role of the law and the role of the marketplace in copyright enforcement and innovation, respectively

    Disease surveillance and patient care in remote regions: an exploratory study of collaboration among healthcare professionals in Amazonia

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    The development and deployment of information technology, particularly mobile tools, to support collaboration between different groups of healthcare professionals has been viewed as a promising way to improve disease surveillance and patient care in remote regions. The effects of global climate change combined with rapid changes to land cover and use in Amazonia are believed to be contributing to the spread of vector-borne emerging and neglected diseases. This makes empowering and providing support for local healthcare providers all the more important. We investigate the use of information technology in this context to support professionals whose activities range from diagnosing diseases and monitoring their spread to developing policies to deal with outbreaks. An analysis of stakeholders, their roles and requirements, is presented which encompasses results of fieldwork and of a process of design and prototyping complemented by questionnaires and targeted interviews. Findings are analysed with respect to the tasks of diagnosis, training of local healthcare professionals, and gathering, sharing and visualisation of data for purposes of epidemiological research and disease surveillance. Methodological issues regarding the elicitation of cooperation and collaboration requirements are discussed and implications are drawn with respect to the use of technology in tackling emerging and neglected diseases
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