147 research outputs found

    Ad-Hoc Architecture of Systems for Disaster Risk Management

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    International audienceThe essence of functioning of present-day systems of disasters risk management is information processing for decision making in target domain of risk management. Risk management is the specific field of situational management. Disasters is a result of evolution of situations concerned with different environment natural, technogenic, and human activity processes. The main purpose of disasters risks management (DRM) systems is to provide organizational and technological services to participants in risk management processes to perform the functions assigned to them. DRM system is a complex organizational and technical system. The result of its configuration should be accorded with the architectural model of the organization and cover all levels of organizational and technical means that ensure its operation. Ad-hoc architectural views should reflect point of views concerted with situation context (semantics), stakeholders’ positions and available required management means. Organization of DRM system based on ad-hoc architecture approach is proposed in the paper

    Conceptual Model of Debris Flow Information System

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    International audienceDebris flows are natural hazard triggered by intensive rainfall or snowmelt and represent rapid movement of water-saturated colluvial and proluvial earth masses. The propagation of this hazardous event could change ecosystems, increase the solid discharge in the rivers and dam siltation, and affect infrastructure and people. The compound character of debris flows requires collection and analysis of various information and for this purpose, the computer technology and geographic information systems provide great opportunity. The aim of the paper is to present a conceptual model of debris flow information system, which to be used for risk assessment and to support decision making. The study emphasizes to factors and prerequisites, debris flow data, analyses and visualization. A fuzzy logic model for integrated risk assessment of the debris flow due to the multiple natural factors (as rainfall duration, rainfall amount, slope, erosion etc.) is proposed. An example of geoinformation portal is presented

    A Study of the Relationship between Vanity Trait and Social Comparison

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    The aim of this study is to investigate the relationship between vanity traits and social comparison among music fans. In-depth semi-structured interviews were conducted with 12-18 year-old adolescents in Taiwan. The results of this study show that: (1) fans with high level of concerns with their physical appearance were likely to make “lateral” social comparison; (2) fans with strong view on physical appearance were likely to make “downward” social comparison; (3) fans with high level of concerns with achievements were likely to make “upward” social comparison; and (4) fans with strong view on achievements were likely to make “lateral” social comparison. A key contribution of this study is the development of these four research propositions

    The Muddy Practice of Social Media Crowdsourcing in Bandung City

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    This interpretative case study investigates social media use during three urban floods in Bandung City, Indonesia. The results suggest that social media is widely used by citizens as an alternative means of emergency communication. As for the government, although the implementation of social media in Bandung City Government can be said to be a pioneer in comparison to other city governments, and Bandung governments units were required to implement social media, social media played a very limited role in crisis communication between citizens and government. Reasons for this include fragility in adoption of technology, lack of institutionalization of technology, and a mutual distrust between government and citizens, where citizens prefer to use traditional media to issue complaints and report status updates rather than government agencies. This empirical finding was found based on a multimethod study, using interview data, social media scraping, document analysis and field study as sources of data.</p

    Cloud Infrastructure Security

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    Part 4: Security for CloudsInternational audienceCloud computing can help companies accomplish more by eliminating the physical bonds between an IT infrastructure and its users. Users can purchase services from a cloud environment that could allow them to save money and focus on their core business. At the same time certain concerns have emerged as potential barriers to rapid adoption of cloud services such as security, privacy and reliability. Usually the information security professionals define the security rules, guidelines and best practices of the IT infrastructure of a given organization at the network, host and application levels. The current paper discusses miscellaneous problems of providing the infrastructure security. The different aspects of data security are given a special attention, especially data and its security. The main components of cloud infrastructure security are defined and the corresponding issues and recommendations are given

    Public Expectations of Social Media Use by Critical Infrastructure Operators During Crises: Lessons Learned from France

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    Previous research into the role of social media in crisis communication has tended to overlook how critical infrastructure (CI) operators might benefit from sites such as Facebook and Twitter, focusing instead on how emergency managers and the general public use such platforms. This paper sets out to address this gap by empirically exploring the expectations of French citizens in relation to the crisis communication strategies deployed by CI operators during major incidents. It does so by reviewing the literature on crisis communication, presenting the results of an online questionnaire, and comparing these results to the current practices of the A31 Highway in France, which were examined via a semi-structured interview. Results indicate that members of the public expect CI operators to communicate via traditional and social media. Therefore, the paper proposes that A31 Highway operators should expand their current practices to include social media

    ОБ'ЄДНАННЯ SOA І ХМАРНИХ ОБЧИСЛЕНЬ В КОРПОРАТИВНІЙ ІТ-ІНФРАСТРУКТУРІ

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    Based on up-to-date Web-based reviews about two advanced information technologies — Service Oriented Architecture (SOA) and Cloud Computing, the current article summarizes the problems in merging these technologies in the modern enterprise IT infrastructure. A short description for both technologies is provided. Cleary the role of each technology in the merging process is defined. and general rules for providing suitable matching are proposed.Based on up-to-date Web-based reviews about two advanced information technologies — Service Oriented Architecture (SOA) and Cloud Computing, the current article summarizes the problems in merging these technologies in the modern enterprise IT infrastructure. A short description for both technologies is provided. Cleary the role of each technology in the merging process is defined. And general rules for providing suitable matching are proposed
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