189,430 research outputs found
Parasitic copepods from Egyptian Red Sea fishes: Bomolochidae Claus, 1875
© The Author(s) 2015
Open Access - This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The attached file is the published version of the article.NHM Repositor
A Common Platform for Graphical Models in R: The gRbase Package
The gRbase package is intended to set the framework for computer packages for data analysis using graphical models. The gRbase package is developed for the open source language, R, and is available for several platforms. The package is intended to be widely extendible and flexible so that package developers may implement further types of graphical models using the available methods. The gRbase package consists of a set of S version 3 classes and associated methods for representing data and models. The package is linked to the dynamicGraph package (Badsberg 2005), an interactive graphical user interface for manipulating graphs. In this paper, we show how these building blocks can be combined and integrated with inference engines in the special cases of hierarchical loglinear models. We also illustrate how to extend the package to deal with other types of graphical models, in this case the graphical Gaussian models.
sj-R-3-smm-10.1177_09622802221107103 - Supplemental material for Group sequential methods for the Mann-Whitney parameter
Supplemental material, sj-R-3-smm-10.1177_09622802221107103 for Group sequential methods for the
Mann-Whitney parameter by Claus P Nowak, Tobias Mütze and Frank Konietschke in Statistical Methods in Medical Research</p
sj-R-2-smm-10.1177_09622802221107103 - Supplemental material for Group sequential methods for the Mann-Whitney parameter
Supplemental material, sj-R-2-smm-10.1177_09622802221107103 for Group sequential methods for the
Mann-Whitney parameter by Claus P Nowak, Tobias Mütze and Frank Konietschke in Statistical Methods in Medical Research</p
Addendum
Addendum, to: Irreducible Tensors of the Point Groups with Fivefold Rotational Axes
J. Brandmüller and R. Claus
Croatica Chemica Acta 61 (2), (1988) 267-30
Addendum
Addendum, to: Irreducible Tensors of the Point Groups with Fivefold Rotational Axes
J. Brandmüller and R. Claus
Croatica Chemica Acta 61 (2), (1988) 267-30
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Santa Claus Helper
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "SANTA CLAUS HELPER R. L. Townsend, right, who weighs and determines the postage on parcel post packages mailed at the central postoffice, is bearing the brunt of the Christmas mailing rush.
- …
