Mostrando recursos 1 - 20 de 58

  1. Amos-type bounds for modified Bessel function ratios.

    Hornik, Kurt; Grün, Bettina
    (please take a look at the pdf)

  2. On conjugate families and Jeffreys priors for von Mises-Fisher distributions

    Hornik, Kurt; Grün, Bettina
    This paper discusses characteristics of standard conjugate priors and their induced posteriors in Bayesian inference for von Mises-Fisher distributions, using either the canonical natural exponential family or the more commonly employed polar coordinate parameterizations. We analyze when standard conjugate priors as well as posteriors are proper, and investigate the Jeffreys prior for the von Mises-Fisher family. Finally, we characterize the proper distributions in the standard conjugate family of the (matrixvalued) von Mises-Fisher distributions on Stiefel manifolds.

  3. Verschiedene Menschen, verschiedene Krisen: Die aktuelle Krise aus intersektionaler Sicht

    Schneebaum, Alyssa
    Unterschiedliche Bevölkerungsgruppen sind von der aktuellen Wirtschaftskrise unterschiedlich stark betroffen. In den USA wird von einer »Mancession« gesprochen, was zum Ausdruck bringen soll, dass Männer besonders in Bezug auf Beschäftigung und Einkommen stärker als Frauen betroffen sind. Dieser Artikel bespricht derartige Unterschiede in Bezug auf verschiedene Bevölkerungsgruppen. Insbesondere wird eine intersektionale Perspektive eingenommen, also verschiedene sozioökonomische Charakteristika gemeinsam betrachtet, sowie Erkenntnisse der Soziologie und Ökonomie kombiniert. (author's abstract)

  4. Editorial: Feministische Beiträge zur Krisenanalyse und -überwindung

    Klatzer, Elisabeth; Mader, Katharina; Schlager, Christa
    (no abstract available)

  5. Feministische Ökonomie - die "Krisengewinnerin"? Oder: der "Economic Man" in der Krise?

    Mader, Katharina
    (no abstract available)

  6. Social Entre­pre­neurship in Öster­reich: Eine Bestands­auf­nahme der unter­schied­li­chen Akteu­rIn­nen und Verständnisse

    Schneider, Hanna
    (no abstract available)

  7. Social Enterprises und Social Entrepreneurship. Konzepte und Begrifflichkeiten

    Millner, Reinhard
    (no abstract available)

  8. Editorial: Social Entrepreneurship als Ausweg?

    Meichenitsch, Katharina; Neumayr, Michaela; Roitner, Anita
    (no abstract available)

  9. Der neo-liberale Elfenbeinturm und die Linke. Zu den Produktionsbedingungen der heterodoxen ÖkonomInnen

    Becker, Joachim
    (no abstract available)

  10. Abfallwirtschaft in Europäischen Städten

    Vogel, Gerhard; Kricker, David

  11. Bulgarien: ökonomische Entwicklung und wirtschaftspolitische Strategie

    Sitz, Alfred; Adzhemova, Aneliya; Pekanov, Atanas
    In diesem Artikel werden Massnahmen und Probleme der frühen Transfor-mationsphase, die wirtschaftliche Entwicklung auch im Yergleich zu anderen mittel- und osteuropäischen Ländern skizziert und diskutiert. Als zweiter Schwerpunkt werden die Wirkungen der Finanz- und Staats-schuldenkrise auf Bulgarien und die wirtschaftspolitischen Reaktionen darauf analysiert. (authors' abstract)

  12. Von Krisenerzählungen über Parteien zur Beobachtung von Praktiken der Exklusion. Eine programmatische Einführung

    Dobusch, Laura; Kreissl, Katharina; Siri, Jasmin
    Die Rede von einer sich verschärfenden "Krise der Parteien" gilt in öffentlichen wie wissenschaftlichen Diskursen als Common Sense. Ein Blick in die Geschichte zeigt jedoch, dass Krisenerzählungen keineswegs eine neuartige Erscheinung sind, sondern Parteien seit deren Entstehung begleiten. Dies ist dem Umstand geschuldet, dass Parteien stets an demokratischen Idealvorstellungen gemessen werden, an denen sie aufgrund ihrer Formierung als Organisationen zwangsläufig scheitern müssen. Umso notwendiger erscheint es, Parteien aus organisationstheoretischer Perspektive in den Blick zu nehmen und sie nach ihren eigenlogischen Verfahren, Programmen und Mitgliederrollen zu befragen. Vor diesem Hintergrund skizzieren wir aktuelle Praktiken der Inklusion in und Exklusion von deutschen...

  13. Zur geschlechtsspezifischen Intrahaushaltsverteilung von Entscheidungsmacht in Europa

    Mader, Katharina; Schneebaum, Alyssa
    (no Abstract available)

  14. Über die Bedeutung von Kapitaleinkommen für die Einkommensverteilung Österreichs

    Humer, Stefan; Moser, Mathias; Schnetzer, Matthias; Ertl, Michael; Kilic, Atila
    (no abstract available)

  15. Differential vulnerability to hurricanes in Cuba, Haiti, and the Dominican Republic: the contribution of education

    Pichler, Adelheid; Striessnig, Erich
    The possible impacts of the level of formal education on different aspects of disaster management, prevention, alarm, emergency, or postdisaster activities, were studied in a comparative perspective for three countries with a comparable exposure to hurricane hazards but different capacities for preventing harm. The study focused on the role of formal education in reducing vulnerability operating through a long-term learning process and put particular emphasis on the education of women. The comparative statistical analysis of the three countries was complemented through qualitative studies in Cuba and the Dominican Republic collected in 2010-2011. We also analyzed to what degree targeted efforts...

  16. Effects of Educational Attainment on Climate Risk Vulnerability

    Striessnig, Erich; Lutz, Wolfgang; Patt, Anthony
    In the context of still uncertain specific effects of climate change in specific locations, this paper examines whether education significantly increases coping capacity with regard to particular climatic changes, and whether it improves the resilience of people to climate risks in general. Our hypothesis is that investment in universal primary and secondary education around the world is the most effective strategy for preparing to cope with the still uncertain dangers associated with future climate. The empirical evidence presented for a cross-country time series of factors associated with past natural disaster fatalities since 1980 in 125 countries confirms this overriding importance...

  17. On the different "worlds" of intra-organizational knowledge management: Understanding idiosyncratic variation in MNC cross-site knowledge-sharing practices

    Kasper, Helmut; Lehrer, Mark; Mühlbacher, Jürgen; Müller, Barbara
    This qualitative field study investigated cross-site knowledge sharing in a small sample of multinational corporations in three different MNC business contexts (global, multidomestic, transnational). The results disclose heterogeneous "worlds" of MNC knowledge sharing, ultimately raising the question as to whether the whole concept of MNC knowledge sharing covers a sufficiently unitary phenomenon to be meaningful. We derive a non-exhaustive typology of MNC knowledge-sharing practices: self-organizing knowledge sharing, technocratic knowledge sharing, and best practice knowledge sharing. Despite its limitations, this typology helps to elucidate a number of issues, including the latent conflict between two disparate theories of MNC knowledge sharing, namely "sender-receiver" and "social learning"...

  18. A Critical Discourse Analysis: The Representation of Hillary Rodham Clinton and Women in the New York Times

    Kopf, Susanne
    This Critical Discourse Analysis investigates the representation of Hillary Rodham Clinton and women in the New York Times during the presidential candidacy campaigns 2008. First, relevant aspects of social practice in the United States of America are introduced. The concept of "women" in U.S. society, prevalent gender stereotypes, the public's perception of Rodham Clinton and leadership ideals are among the facets of social practice that are dealt with in the course of this essay. This is followed by a discussion of how aspects of social practice are drawn upon and utilised in the representation of Rodham Clinton and women by...

  19. Computing Semantic Association: Comparing Spreading Activation and Spectral Association for Ontology Learning

    Wohlgenannt, Gerhard; Belk, Stefan; Schett, Matthias
    Spreading activation is a common method for searching semantic or neural networks, it iteratively propagates activation for one or more sources through a network { a process that is computationally intensive. Spectral association is a recent technique to approximate spreading activation in one go, and therefore provides very fast computation of activation levels. In this paper we evaluate the characteristics of spectral association as replacement for classic spreading activation in the domain of ontology learning. The evaluation focuses on run-time performance measures of our implementation of both methods for various network sizes. Furthermore, we investigate differences in output, i.e. the resulting ontologies, between spreading activation and spectral association. The experiments confirm...

  20. A Prototype for Automating Ontology Learning and Ontology Evolution

    Wohlgenannt, Gerhard; Belk, Stefan; Schett, Matthias
    Ontology learning supports ontology engineers in the complex task of creating an ontology. Updating ontologies at regular intervals greatly increases the need for expensive expert contribution. This naturally leads to endeavors to automate the process wherever applicable. This paper presents a model for automated ontology learning and a prototype which demonstrates the feasibility of the proposed approach in learning lightweight domain ontologies. The system learns ontologies from heterogeneous sources periodically and delegates all evaluation processes, eg. the verification of new concept candidates, to a crowdsourcing framework which currently relies on Games with a Purpose. Furthermore, we sketch ontology evolution experiments to trace trends and patterns facilitated by...

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