Results 21 to 30 of about 54,125 (236)

Smoothing-inspired lack-of-fit tests based on ranks

, 2008
A rank-based test of the null hypothesis that a regressor has no effect on a response variable is proposed and analyzed. This test is identical in structure to the order selection test but with the raw data replaced by ranks. The test is nonparametric in
Hart, Jeffrey D.
core   +1 more source

A Generalization of the Sukhatme's Test for Two-Sample Scale Problem

Journal of Statistical Theory and Applications (JSTA)
In this paper, we present nonparametric tests for the two-sample scale problem. The proposed tests include as special case the B.V. Sukhatme, Ann. Math. Stat. 28 (1957), 188–194, and J.V. Deshpande, K. Kusum, Aust. J. Stat. 26 (1984), 16–24 tests.
Manish Goyal, Narinder Kumar
doaj   +1 more source

Minimax Estimation of Nonregular Parameters and Discontinuity in Minimax Risk

, 2014
When a parameter of interest is nondifferentiable in the probability, the existing theory of semiparametric efficient estimation is not applicable, as it does not have an influence function.
Bickel P. J., Clarke F. H., Hájek J., Jeganathan P., Le Cam L., Le Cam L., Levit B. Y., van der Vaart A. W.   +7 more
core   +1 more source

Swedish Consumers' Willingness‐to‐Pay for Plant‐Based Proteins in Pasta Sauce: Preferences and Policy Scenarios

Agribusiness, EarlyView.
ABSTRACT This paper explores Swedish consumers' protein preferences by estimating the willingness‐to‐pay (WTP) for minced meat and plant‐based proteins in pasta sauce from an in‐store experiment (n = 206) and an online discrete choice experiment (n = 517). On average, the WTP was highest for minced meat.
Emilia Mattsson, Anna Kristina Edenbrandt, Jens Rommel, Sarah Säll   +3 more
wiley   +1 more source

Animal‐Based Brands Taking the Plant‐Based Opportunity: A Tasting Experiment Exploring Consumer Acceptance of Plant‐Based Brand Extensions

Agribusiness, EarlyView.
ABSTRACT This study investigates how consumer taste and brand equity perceptions shape the acceptance of plant‐based milk products. Using a blind/informed tasting experiment, we evaluated consumers' willingness to buy (WTB) and taste perception of a plant‐based milk alternative produced by a traditional dairy brand, compared with competing plant‐based ...
Federico Parmiggiani, Mirta Casati, Elena Castellari, Fosca Vezzulli, Veronica Vitali, Milena Lambri, Claudio Soregaroli   +6 more
wiley   +1 more source

Some Properties of the Asymptotic Relative Pitman Efficiency

The Annals of Statistics, 1981
A general approach to Pitman efficiency as a limit of the ratio of sample sizes is presented. The results can be used especially to derive the Pitman efficiency of tests based on asymptotically $\chi^2$-distributed statistics with different degrees of freedom.
openaire   +3 more sources

A temporal study of oxygen-rich pulsating variable AGB star, T Cep: Investigation on dust formation and dust properties

, 2011
Pulsation is believed to be the leading cause of dusty mass loss from Asymptotic Giant Branch (AGB) stars. We present a temporal study of T Cep, a long-period Mira variable, using seven ISO SWS spectra, covering a 16-month period over a single pulsation ...
Angela K. Speck, Begemann, Begemann, Benitez, Blommaert, Bohren, Bohren, Bose, Cami, Cami, Cami, Castelaz, Chiar, Corman, Crovisier, de Graauw, DePew, Dijkstra, Gail, Gervais, Hao, Henning, Huffman, Isles, Jäger, Jäger, Kessler, Koike, Lebzelter, Lodders, Marsakova, McDonald, McDonald, Molster, Murata, Nogami, Onaka, Perrin, Perryman, Schweitzer, Sloan, Sloan, Sloan, Spoon, Stroud, Suklima Guha Niyogi, Takashi Onaka, Takigawa, Thompson, Tielens, Tsuji, Van Malderen, Vollmer, Waelkens, Waters, Weigelt, Werner, Woolf, Yamamura, Zijlstra   +59 more
core   +1 more source

Impact of climate change and development scenarios on flow patterns in the Okavango River [PDF]

, 2006
This paper lays the foundation for the use of scenario modelling as a tool for integrated water resource management in the Okavango River basin. The Pitman hydrological model is used to assess the impact of various development and climate change ...
Andersson, Anton Earle, Arnell, Ashton, Ashton, Bergström, Conway, Dahinden, Denis A. Hughes, Dominic Kniveton, Ellery, Giorgi, Gleick, Hargreaves, Hoekstra, Hubert H.G. Savenije, Hulme, Hulme, Julie Wilk, Lotta Andersson, Martin C. Todd, Mbaiwa, Mendelsohn, Mendelsohn, New, Pinheiro, Ravetz, Russel Layberry, Schulze, Sutcliffe, Tate, Wilk, Xie   +32 more
core   +2 more sources

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

Archaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski, Andrzej Pydyn, Mateusz Popek, Anna M. Kotarba‐Morley, Paweł Tysiąc   +4 more
wiley   +1 more source

A Generalized Pitman Efficiency for Nonparametric Tests

The Annals of Mathematical Statistics, 1960
Asymptotic expressions up to terms of order $n^{-2}$ are given for the efficiency of the Wilcoxon two-sample test relative to the standard-normal test and $t$-test for nearby alternatives. The first term is the well-known Pitman efficiency; the remaining terms are corrections for finite sample sizes.
openaire   +2 more sources