Search results for "Independence"
showing 10 items of 292 documents
Selecting the tuning parameter in penalized Gaussian graphical models
2019
Penalized inference of Gaussian graphical models is a way to assess the conditional independence structure in multivariate problems. In this setting, the conditional independence structure, corresponding to a graph, is related to the choice of the tuning parameter, which determines the model complexity or degrees of freedom. There has been little research on the degrees of freedom for penalized Gaussian graphical models. In this paper, we propose an estimator of the degrees of freedom in $$\ell _1$$ -penalized Gaussian graphical models. Specifically, we derive an estimator inspired by the generalized information criterion and propose to use this estimator as the bias term for two informatio…
Residuenanalyse des Unabhängigkeitsmodells Zweier Kategorialer Variablen
1985
For the ‘cellwise’ analysis of independence of two categorial variables, Haberman (1973) proposes the method of ‘adjusted residuals’. Fuchs and Kenett (1980) use (the absolute value of) the maximal adjusted residual as a measure for the deviation from the null hypothesis.
Interdependence Between Tool Fracture and Wear
1985
Wear and fracture are the main causes of tool scrapping. However fracture plays a major role for increasing values of the hardness and brittleness of tool materials or when low-cobalt tungsten carbides are used or in interrupted cutting conditions where it is the most relevant factor for tool scrapping. In order to obtain the optimal values of the cutting speed both these factors should be considered. The hypothesis of stochastic independence among them simplifies the mathematical formulation of the optimization problem; but experimental investigations do not agree with this assumption and, as a matter of fact, the probability density function of tool fracture results to be dependent on the…
Graphical Models for Dependencies and Associations
1992
The role of graphical representations is described in distinguishing various special forms of independency structure that can arise with multivariate data, especially in observational studies in the social sciences. Conventions for constructing the graphs and strategies for analysing three sets of data are summarized. Finally some directions for desirable future work are outlined.
Recent Changes in Student Life and Study ProcessesABSTRACT
1995
This research on university and university students was carried out during the 1980s at the University of Jyvaskyla in Finland. It is argued that the student years no longer constitute a ‘classically’ academic life stage; instead, the modem student's life is divided between study and part‐time employment. The uncertain economic situation and social immaturity of today's students hampers their identity formation. Student culture has lost its independence and vitality, and the basic structures of students’ life‐world have fragmented so that their lives no longer revolve around the university. Moreover, curricularization in universities has instrumentalized the study process and the relation o…
Corporate social and environmental disclosure as a sustainable development tool provided by board sub-committees: Do women directors play a relevant …
2021
This is the pre-peer reviewed version of the following article: Corporate social and environmental disclosure as a sustainable development tool provided by board sub-committees: Do women directors play a relevant moderating role?, which has been published in final form at https://doi.org/10.1002/bse.2815. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions The aim of this research is to examine the impact of three audit committee characteristics on corporate social and environmental responsibility (CSR) disclosure: the existence of an audit committee, audit committee independence, and audit committee financial …
On the classification of visual patterns: systems analysis using detection experiments.
1977
Behavioral experiments are indispensable for the analysis of biological systems for cognition and recognition. When these are carried out as detection experiments three types of description can be used for the problem of visual pattern recognition which allow conclusions to be drawn on the operating function of the system. Provided that the signals to be recognized have additive noise superimposed on them, system description is possible: 1. on the basis on the probabilities of recognition and of mix-up,--2. through the analysis of the transformation of distribution densities of the noise,--3. by means of the measurable distances of the patterns from each other in feature space.-The analysis…
Translation as a measure of literary domination: the case of Quebec literature translated in Spain (1975-2004)
2010
Recent literary manifestos claim that “the center is no longer the center” (Le Devoir 2007). Indeed, it is generally admitted that Quebec literature has been more or less independent from the French field since the 1970’s. However, the analysis of the translation of this literature –its international circulation, and the almost compulsory stopover in France before being selected for translation by the agents of other literary fields– reveals various mechanisms through which the French symbolic center still exerts its power. Drawing on the application of Pierre Bourdieu’s sociology of culture to the international space (Casanova 1999; Sapiro 2007, 2008; etc.), this article argues that transl…
Driving Through Neoliberalism : Finnish Truck Drivers Constructing Respectable Male Worker Subjectivities
2017
This chapter analyses how Finnish male truck drivers (re)produce themselves as respectable male workers in the face of the recent economic, technological and institutional transformations impacting the European haulage sector. The investigation is based on ethnographic data which are produced by riding along on assignments with ten male Finnish truck drivers in the period 2012–2016. The analysis shows how truck drivers’ independence and value in the work process has become challenged and how truckers experience being occupationally stigmatized. The study argues, however, that while economic restructuring undermines some components of traditional forms of working-class masculinity, masculine…
Some Thoughts on the Independence of Party-Appointed Expert in International Arbitration
2021
Participation of experts in both commercial arbitration proceedings and investment arbitration proceedings is a well-known phenomenon for decades. A trend asking for parties-appointed experts to be independent is under development since the end of the twentieth century. The aim of this chapter is, at first, to make the point on this issue by analysing some of the most important current rules dedicated to international arbitration. The observation to be made is that the evolution described is not that developed so far in international arbitration. In a second time the need and relevance of this new requirement are addressed. It appears then that the meaning of this demand is far from being c…