نتایج جستجو برای: centering ratio

تعداد نتایج: 504659  

1996
Michael Strube Udo Hahn

Based on empirical evidence from a free word order language (German) we propose a fundamental revision of the principles guiding the ordering of discourse entities in the forward-looking centers within the centering model. We claim that grammatical role criteria should be replaced by indicators of the functional information structure of the utterances, i.e., the distinction between context-boun...

2001
Rick Nouwen

This paper presents an integration of centering theory ([GJW95]) into incremental dynamic logic. The formalism is based on an idea found in [vE00a], where contexts are permutable in order to model salience. Building on this idea, centering theory is restated as a formalism on contexts. Subsequently the system is used to consider some problems centering theory has once plurality is taken into ac...

Journal: :Multivariate behavioral research 1995
I G Kreft J de Leeuw L S Aiken

Multilevel models are becoming increasingly used in applied educational social and economic research for the analysis of hierarchically nested data. In these random coefficient regression models the parameters are allowed to differ over the groups in which the observations are nested. For computational ease in deriving parameter estimates, predictors are often centered around the mean. In neste...

Journal: :J. Multivariate Analysis 2014
Qinwen Wang Jack W. Silverstein Jian-Feng Yao

Abstract: In this note, we establish an asymptotic expansion for the centering parameter appearing in the central limit theorems for linear spectral statistic of large-dimensional sample covariance matrices when the population has a spiked covariance structure. As an application, we provide an asymptotic power function for the corrected likelihood ratio statistic for testing the presence of spi...

Journal: :Acta pharmaceutica 2012
Nouruddin Wageih Ali Maha Ahamd Hegazy Mohamed Abdelkawy Eglal Abdelahamid Abdelaleem

Accurate and sensitive methods were developed for simultaneous determination of methocarbamol and ibuprofen or diclofenac potassium in their binary mixtures, and in the presence of a methocarbamol related substance (guaifenesin) using mean centering of the ratio spectra method. The results obtained were statistically compared with the reported HPLC methods; no significant difference between the...

1993
Megumi Kameyama Rebecca J. Passonneau Massimo Poesio

We present a semantic and pragmatic account of the anaphoric properties of past and perfect that improves on previous work by integrating discourse structure, aspectual type, surface structure and commonsense knowledge. A novel aspect of our account is that we distinguish between two kinds of temporal intervals in the interpretation of temporal operators-discourse reference intervals and event ...

2013
Jan Melchior Asja Fischer Laurenz Wiskott

This work analyzes centered binary Restricted Boltzmann Machines (RBMs) and binary Deep Boltzmann Machines (DBMs), where centering is done by subtracting offset values from visible and hidden variables. We show analytically that (i) centering results in a different but equivalent parameterization for artificial neural networks in general, (ii) the expected performance of centered binary RBMs/DB...

Journal: :Computational Linguistics 2001
Joel R. Tetreaul

In this paperwe comparepronoun resolution algorithmsand introduce a centering algorithm(LeftRightCentering) that adheres to the constraints and rules of centering theory and is an alternative to Brennan, Friedman, and Pollard’s (1987) algorithm. We then use the Left-Right Centering algorithm to see if two psycholinguistic claims on Cf-list ranking will actually improve pronoun resolution accura...

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