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  • Author(s):
    Thomas A. Stapleford
    Abstract:

    This essay argues that beneath the superficial linearity of the history of neoclassical price index theory lie important conceptual ruptures that are linked to the ordinal revolution, including a radical transformation in the core objective for cost-of-living indexes. Revealing these ruptures produces a more accurate history of both the development of neoclassical price index theory and its reception. Furthermore, we can recognize how transformations in this theory have made cost-of-living in…

  • Author(s):
    Thomas A. Stapleford
    Abstract:

    Created in 1884, the U.S. Bureau of Labor Statistics (BLS) has been the major federal source for data on labor-related topics in the United States such as prices, unemployment, compensation, productivity, and family expenditures. This essay traces the development and transformation of formal and informal consulting relationships between the BLS and external groups (including academic social scientists, unions, businesses, and other government entities) over the twentieth century. Though such …

    Date Published:
    2010-06
  • Author(s):
    Daniel Bates, Andrew Sommese, Jonathan Hauenstein
    Abstract:

    Numerical algebraic geometry is the area devoted to the solution and manipulation of polynomial systems by numerical methods, which are mainly based on continuation. Due to the extreme intrinsic parallelism of continuation, polynomial systems may be successfully dealt with that are much larger than is possible with other methods. Singular solutions require special numerical methods called endgames, and the endgames currently used do not take advantage of parallelism. This article gives an ove…

  • Author(s):
    Charles Wampler II, Daniel Bates, Andrew Sommese, Jonathan Hauenstein
    Abstract:

    Dedicated to our collaborator, mentor, and friend, Andrew Sommese, by Bates, Hauenstein, and Wampler on the occasion of his sixtieth birthday.

    When numerically tracking implicitly-defined paths, such as is required for homotopy continuation methods, efficiency and reliability are enhanced by using adaptive stepsize and adaptive multiprecision methods. Both efficiency and reliability can be further improved by adapting precision and stepsize simultaneously. This paper presents a strategy fo…

  • Author(s):
    Charles Wampler, Andrew Sommese, Jonathan Hauenstein
    Abstract:

    Though numerical methods to find all the isolated solutions of nonlinear systems of multivariate polynomials go back 30 years, it is only over the last decade that numerical methods have been devised for the computation and manipulation of algebraic sets coming from polynomial systems over the complex numbers. Collectively, these algorithms and the underlying theory have come to be known as numerical algebraic geometry. Several software packages are capable of carrying out some of the operati…

  • Author(s):
    Daniel Bates, Andrew Sommese, Jonathan Hauenstein
    Abstract:

    Path tracking is the fundamental computational tool in homotopy continuation and is therefore key in most algorithms in the emerging field of numerical algebraic geometry. Though the basic notions of predictor-corrector methods have been known for years, there is still much to be considered, particularly in the specialized algebraic setting of solving polynomial systems. In this article, the effects of the choice of predictor method on the performance of a tracker is analyzed, and details for…

  • Author(s):
    Mark Dehmlow
    Abstract:

    In December of 2014, the University of Notre Dame’s Office of Information Technology (OIT) announced its “Cloud First” strategy. The strategic goal of the initiative is to espouse a technology implementation strategy that lays out a technology adoption strategy with the following order of preferences: 1. Use software provided and hosted by vendors in the cloud, 2. Adopt cloud-based data-centers for implementing what previously had been on-premise solutions, and 3. Reduce local implementations…

  • Author(s):
    Robert Kusmer
    Abstract:

    Notre Dame’s German language and literature librarian Robert Kusmer describes his visit to the 2014 Basel and Vienna book fairs and the trip’s significance to his work in building the German literature collections. This article is also published in the WESS Newsletter 38:2 (Spring 2015).

  • Author(s):
    Robert Kusmer
    Abstract:

    Notre Dame’s German language and literature librarian Robert Kusmer describes his March 2004 trip to the Leipzig Book Fair as a recipient of the Nedbook Northwest Europe Award and its value in developing the German literature collections in Hesburgh Library. This article appeared in the WESS Newsletter 28:1 (Fall 2004)

  • Author(s):
    Robert Kusmer
    Abstract:

    Notre Dame’s German language and literature librarian Robert Kusmer describes his November 2002 trip with colleagues to four major German cities for the purpose of touring prominent libraries, publishing houses and other cultural institutions. Co-sponsored by the Goethe Institut-New York and Bibliothek und Information International, under the auspices of the Association of College and Research Libraries, West European Studies Section, the trip furthered his understanding of the commonali…

  • Author(s):
    David Lloyd
    Abstract:

    The sudden, if predictable, transformation of Ireland from its brief moment as an island of immigrants back into what for so long it always was, a nation of emigrants, demands the re-interrogation of a term that for a brief time came to seem a natural way to address Ireland’s global migrations. The application of the term diaspora to people of Irish descent living outside Ireland is, after all, of relatively recent date and replaces a term that has been quite resonant in the Irish vocabular…

  • Author(s):
    Kenton Murray, David Chiang
    Abstract:

    Neural networks have been shown to improve performance across a range of natural-language tasks. However, designing and training them can be complicated. Frequently, researchers resort to repeated experimentation to pick optimal settings. In this paper, we address the issue of choosing the correct number of units in hidden layers. We introduce a method for automatically adjusting network size by pruning out hidden units through L∞,1 and L2,1 regularization. We apply this method to language mo…