Results 41 to 50 of about 334,334 (190)

A Nonparametric Efficiency Analysis of California Cotton Ginning Cooperatives

Journal of Agricultural and Resource Economics, 1993
In the spirit of Leamer's commitment to sensitivity analysis, we employ Farrell's nonparametric efficiency methodology and compare our results with those of Sexton, Wilson, and Wann.
Michael R. Caputo, Lori Lynch
doaj   +1 more source

Nonparametric statistical tests for the continuous data: the basic concept and the practical use [PDF]

Korean Journal of Anesthesiology, 2016
Conventional statistical tests are usually called parametric tests. Parametric tests are used more frequently than nonparametric tests in many medical articles, because most of the medical researchers are familiar with and the statistical software ...
Francis Sahngun Nahm
doaj   +1 more source

Relationship between Mental Health and Socio-Economic, Demographic and Environmental Factors in the COVID-19 Lockdown Period—A Multivariate Regression Analysis

Mathematics, 2022
Amongst the several consequences of the COVID-19 pandemic, we should include psychological effects on the population. The mental health consequences of lockdown are affected by several factors. The most important are: the duration of the social isolation
Stefano Bonnini, Michela Borghesi
doaj   +1 more source

Trends in statistical methods in articles published in Archives of Plastic Surgery between 2012 and 2017

Archives of Plastic Surgery, 2018
This review article presents an assessment of trends in statistical methods and an evaluation of their appropriateness in articles published in the Archives of Plastic Surgery (APS) from 2012 to 2017.
Kyunghwa Han, Inkyung Jung
doaj   +1 more source

Rate-optimal graphon estimation

, 2015
Network analysis is becoming one of the most active research areas in statistics. Significant advances have been made recently on developing theories, methodologies and algorithms for analyzing networks.
Gao, Chao, Lu, Yu, Zhou, Harrison H.
core   +1 more source

Nonparametric Statistical Thresholding for Sparse Magnetoencephalography Source Reconstructions

Frontiers in Neuroscience, 2012
Uncovering brain activity from MEG data requires solving an ill-posed inverse problem, greatly confounded by noise, interference, and correlated sources.
Julia Parsons Owen, Julia Parsons Owen, Kensuke eSekihara, Srikantan S. Nagarajan, Srikantan S. Nagarajan   +4 more
doaj   +1 more source

Functional single index models for longitudinal data

, 2011
A new single-index model that reflects the time-dynamic effects of the single index is proposed for longitudinal and functional response data, possibly measured with errors, for both longitudinal and time-invariant covariates.
Jiang, Ci-Ren, Wang, Jane-Ling
core   +1 more source

ON THE PERFORMANCE OF NONPARAMETRIC SPECIFICATION TESTS IN REGRESSION MODELS [PDF]

, 2013
Some recently developed nonparametric specification tests for regression models are described in a unified way. The common characteristic of these tests is that they are consistent against any alternative hypothesis.
Chesborough HW, Chesbrough H, Chesbrough HW, Chesbrough HW, Department for Business, Enterprise and Regulatory Reform, Department of Enterprise, Trade and Investment, Department of Enterprise, Trade and Investment, Dunning JH, European Commission, Hewitt-Dundas N, Iansiti M, Jarzabkowski P, Monteny F   +12 more
core   +1 more source

Consistency of cross validation for comparing regression procedures

, 2008
Theoretical developments on cross validation (CV) have mainly focused on selecting one among a list of finite-dimensional models (e.g., subset or order selection in linear regression) or selecting a smoothing parameter (e.g., bandwidth for kernel ...
Yang, Yuhong
core   +1 more source

Probabilistic models of information retrieval based on measuring the divergence from randomness [PDF]

, 2002
We introduce and create a framework for deriving probabilistic models of Information Retrieval. The models are nonparametric models of IR obtained in the language model approach.
Allan J., Amati G., Bookstein A., Carpineto C., Cornelis Joost Van Rijsbergen, Croft W., Damerau F., Gianni Amati, Harman D., Harter S. P., Harter S. P., Lafferty J., Margulis E., Ponte J., Robertson S., Robertson S., Robertson S. E., Robertson S. E., Solomonoff R., Solomonoff R., van Rijsbergen C.   +20 more
core   +1 more source