22,514 research outputs found

    An Experiment in Model Driven Architecture for e-Enterprise Systems

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    OMG's Model Driven Architecture demonstrates how a system's specification model can be used within the process of creating supporting software implementations. This article documents the findings of an experiment aimed at determining the extent to which this method of software engineering can be used within the domain of e-Enterprise systems

    Good Sense, Art, and Morality in Hume's ‘Of the Standard of Taste’

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    In his essay ‘Of the Standard of Taste,’ Hume argues that artworks with morally flawed outlooks are, to some extent, aesthetically flawed. While Hume's remarks regarding the relationship between art and morality have influenced contemporary aestheticians, Hume's own position has struck many people as incoherent. For Hume appears to entangle himself in two separate contradictions. First, Hume seems to claim both that true judges should not enter into vicious sentiments and that true judges should adopt the standpoint of an artwork's intended audience. But The Iliad, say, was obviously intended for an audience that shared Homer's flawed moral outlook. Second, Hume appears to claim that our moral sentiments are both highly resistant to change and extremely fragile. This essay defends Hume against these two objections by drawing increased attention to the role that Hume's aesthetics assigns to the faculty of good sense or sound reason

    Ethnic concentration and language fluency of immigrants in Germany

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    Studies that investigate the effect of the regional ethnic composition on immigrant outcomes have been complicated by the self-selection of ethnic minorities into specific neighbourhoods. We analyse the impact of own-ethnic concentration on the language proficiency of immigrants by exploiting the fact that the initial placement of guest-workers after WWII was determined by labour demanding firms and the federal labour administration and hence exogenous to immigrant workers. Combining several data sets, we find a small but robust and significant negative effect of ethnic concentration on immigrants’ language ability. Simulation results of a choice model in which location and learning decisions are taken simultaneously confirm the presence of the effect. Immigrants with high learning costs are inclined to move to ethnic enclaves, so that the share of German-speakers would increase only modestly even under the counterfactual scenario of a regionally equal distribution of immigrants across Germany

    Evaluating and promoting open data practices in open access journals

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    The last decade has seen a dramatic increase in attention from the scholarly communications and research community to open access (OA) and open data practices. These are potentially related because journal publication policies and practices both signal disciplinary norms and provide direct incentives for data sharing and citation. However, there is little research evaluating the data policies of OA journals. In this study we analyse the state of data policies for OA journals by employing random sampling of the Directory of Open Access Journals and Open Journal Systems journal directories and applying a coding framework that integrates both previous studies and emerging taxonomies of data sharing and citation. This study, for the first time, reveals both the low prevalence of datasharing policies and practices in OA journals, which differs from the previous studies of commercial journals in specific disciplines

    A life in progress: motion and emotion in the autobiography of Robert M. La Follette

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    This article is a study of a La Follette’s Autobiography, the autobiography of the leading Wisconsin progressive Robert M. La Follette, which was published serially in 1911 and, in book form, in 1913. Rather than focusing, as have other historians, on which parts of La Follette’s account are accurate and can therefore be trusted, it explains instead why and how this major autobiography was conceived and written. The article shows that the autobiography was the product of a sustained, complex, and often fraught series of collaborations among La Follette’s family, friends, and political allies, and in the process illuminates the importance of affective ties as well as political ambition and commitment in bringing the project to fruition. In the world of progressive reform, it argues, personal and political experiences were inseparable

    Whom to Ask? Jury Selection for Decision Making Tasks on Micro-blog Services

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    It is universal to see people obtain knowledge on micro-blog services by asking others decision making questions. In this paper, we study the Jury Selection Problem(JSP) by utilizing crowdsourcing for decision making tasks on micro-blog services. Specifically, the problem is to enroll a subset of crowd under a limited budget, whose aggregated wisdom via Majority Voting scheme has the lowest probability of drawing a wrong answer(Jury Error Rate-JER). Due to various individual error-rates of the crowd, the calculation of JER is non-trivial. Firstly, we explicitly state that JER is the probability when the number of wrong jurors is larger than half of the size of a jury. To avoid the exponentially increasing calculation of JER, we propose two efficient algorithms and an effective bounding technique. Furthermore, we study the Jury Selection Problem on two crowdsourcing models, one is for altruistic users(AltrM) and the other is for incentive-requiring users(PayM) who require extra payment when enrolled into a task. For the AltrM model, we prove the monotonicity of JER on individual error rate and propose an efficient exact algorithm for JSP. For the PayM model, we prove the NP-hardness of JSP on PayM and propose an efficient greedy-based heuristic algorithm. Finally, we conduct a series of experiments to investigate the traits of JSP, and validate the efficiency and effectiveness of our proposed algorithms on both synthetic and real micro-blog data.Comment: VLDB201

    Institutional thickening and innovation: reflections on the remapping of the Great Bear Rainforest

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    The information, practices and views in this article are those of the author(s) and do not necessarily reflect the opinion of the Royal Geographical Society (with IBG). © 2016 Royal Geographical Society (with the Institute of British Geographers) As a response to forest conflict, contemporary remapping refers to re-evaluations of resource values, new and diverse forms of governance among stakeholders, and compromises within patterns of land use that give greater emphasis to environmental and cultural priorities. This paper elaborates the processes of remapping by examining the role of institutional innovation in conflict resolution, with particular reference to the iconic Great Bear Rainforest of British Columbia. After years of conflict and protest, peace in the Great Bear Rainforest was heralded by an interim agreement in 2006, with final ratification likely in 2016. Conceptually, a four-legged stakeholder model identifies the main institutional interests and their interactions through learning and bargaining. New forms of governance were created to bring the stakeholders together in constructive dialogue and then to reach and implement acceptable bargains. Analytically, the paper examines how this agreement has worked in practice by reflecting on the emergence of novel institutions that integrate the interests of key stakeholders. The discussion identifies six bilateral negotiations between: industrial and environmental interests; federal and provincial governments and aboriginal peoples; government and environmental interests; government and industry; industry and aboriginal peoples; and environmental groups and local communities. The remapping process has produced a thickening architecture of institutions that remain experimental even as they seek to promote sustainability, resilience and legitimacy
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