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  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jan Teorell, John Gerring, Jeffrey Staton, Carl Henrik Knutsen, David Altman, Megan Reif, Staffan I. Lindberg, Kelly McMann, Svend-Erik Skaaning, Michael Bernhard, Michael Coppedge, Eitan Tzelgov, Allen Hicken, Matthew Kroenig, Daniel Pemstein, Adam Glynn, Yi-ting Wang, M. Steven Fish
    Description:

    Posterior data of Higher Level Indices for Varieties of Democracy v.7. The code book and description of the variables can be found in the main item for this collection.

    Date Created:
    2017-01-01
    Record Visibility:
    Public
  • Creator(s):
    Svend-Erik Skaaning, Kyle L. Marquardt, Johannes von Römer, Eitan Tzelgov, Brigitte Seim, Allen Hicken, David Altman, Michael Bernhard, M. Steven Fish, Yi-ting Wang, John Gerring, Jan Teorell, Michael Coppedge, Lisa Gastaldi, Pamela Paxton, Rachel Sigman, Staffan I. Lindberg, Carl Henrik Knutsen, Kelly McMann, Aksel Sundtröm, Agnes Cornell, Daniel Ziblatt, Anna Lührmann, Adam Glynn, Jeffrey Staton, Daniel Pemstein, Luca Uberti, Haakon Gjerløw, Valeriya Mechkova, Tore Wig
    Description:

    Data for Varieties of Democracy Project. Version 10 of these files.

    Date Created:
    2020-01-01
    Record Visibility:
    Public
  • Creator(s):
    Jonathan Hauenstein, Samantha Sherman
    Description:

    Synthesis problems for linkages in kinematics often yield large structured parameterized polynomial systems which generically have far fewer solutions than traditional upper bounds would suggest. This paper describes statistical models for estimating the generic number of solutions of such parameterized polynomial systems. The new approach extends previous work on success ratios of parameter homotopies to using monodromy loops as well as the addition of a trace test that provides a stopping…

    Date Created:
    2020-04-21
    Record Visibility:
    Public
  • Creator(s):
    Jonathan Hauenstein, Margaret Regan
    Description:

    Polynomials which arise via elimination can be difficult to compute explicitly. By using a pseudo-witness set, we develop an algorithm to explicitly compute the restriction of a polynomial to a given line. The resulting polynomial can then be used to evaluate the original polynomial and directional derivatives along the line at any point on the given line. Several examples are used to demonstrate this new algorithm including examples of computing the critical points of the discriminant locu…

    Date Created:
    2020-03-27
    Record Visibility:
    Public
  • Author(s):
    Peggy Griesinger, Mikala Narlock, Jeremy Friesen, Hanna Bertoldi
    Abstract:

    The presenters will outline efforts to create a unified discovery platform for digital collections from libraries, archives, and museums. They will guide attendees through the process of designing harmonized metadata profiles for these related but very different domains, including solutions for conciliating controlled vocabularies. They will discuss the software stack’s approach to moving the harmonized data from varied back-end systems to a singular point from which they build out multiple s…

    Date Created:
    2020-03-12
    Record Visibility:
    Public
    Resource Type
    Presentation
  • Creator(s):
    Jonathan Hauenstein, Martin Helmer
    Description:

    Alt’s problem, formulated in 1923, is to count the number of four-bar linkages whose coupler curve interpolates nine general points in the plane. This problem can be phrased as counting the number of solutions to a system of polynomial equations which was first solved numerically using homotopy continuation by Wampler, Morgan, and Sommese in 1992. Since there is still not a proof that all solutions were obtained, we consider upper bounds for Alt’s problem by counting the number of sol…

    Date Created:
    2020-03-03
    Record Visibility:
    Public
  • Creator(s):
    Matthew Sisk
    Description:

    This is the data table from Appendix A of Sisk, ML (2011) “Settlement and Site Location in the Middle and Upper Paleolithic of the Vézère Valley, France” Ph.D. Dissertation, Stony Brook University, Department of Anthropology. It corrects errors present in the original publication

    Date Created:
    2020-02-12
    Record Visibility:
    Public