Results 91 to 100 of about 18,332 (180)

Computational methods for Bayesian model choice

, 2009
In this note, we shortly survey some recent approaches on the approximation of the Bayes factor used in Bayesian hypothesis testing and in Bayesian model choice.
C. P. Robert, Chun-Yong Chan, D. Wraith, Paul M. Goggans   +3 more
core   +4 more sources

Trend analysis and change-point detection of monsoon rainfall in Uttarakhand and its impact on vegetation productivity

Journal of Agrometeorology
This study analyzes the long-term spatio-temporal changes and trend analysis in rainfall using the data from 1901 to 2020 and its impact on vegetation from 2000 to 2020 across districts of Uttarakhand.
PRIYANKA SWAMI
doaj   +1 more source

Improving the performance of streamflow forecasting model using data-preprocessing technique in Dungun River Basin

E3S Web of Conferences, 2018
An accurate streamflow forecasting model is important for the development of flood mitigation plan as to ensure sustainable development for a river basin. This study adopted Variational Mode Decomposition (VMD) data-preprocessing technique to process and
Tiu Ervin Shan Khai, Huang Yuk Feng, Ling Lloyd   +2 more
doaj   +1 more source

Temporal trend and dynamics of the active layer at different monitoring points in Maritime Antarctica and Peninsula [PDF]

Anais da Academia Brasileira de Ciências
Antarctica provides a unique opportunity to understand changes in permafrost and global climate. Four monitoring sites were selected between maritime Antarctica and the Peninsula to study the temporal trend, air and soil temperature, and dynamics of the ...
TAMÍRES P. CORREIA, GUSTAVO V. VELOSO, GUSTAVO B. LYRA, ROBERTO F. MICHEL, ELPÍDIO INÁCIO FERNANDES FILHO, CARLOS ERNESTO SCHAEFER, FLÁVIO B. JUSTINO, MARCIO R. FRANCELINO   +7 more
doaj   +1 more source

O ANÚNCIO DE OFERTAS SUBSEQUENTES DE AÇÕES E SEU EFEITO NO PREÇO DAS AÇÕES: UMA ABORDAGEM COM BASE NO TESTE DE PETTITT

, 2016
Este artigo investigou os efeitos nos preços das ações, de empresas brasileiras, em torno do anúncio de Ofertas Subsequentes de Ações (SEO). Inicialmente, verificou-se a existência de ruptura na série temporal nos preços das ações. Em seguida, verificou-se a possível data de ruptura na série, e, então, analisou-se o retorno acionário das empresas antes
Sena, Alnio Suamy de, Azevedo Filho, Azamor Cirne de, Lucena, Wenner Glaucio Lopes   +2 more
openaire   +1 more source

Analysis of the Climatological Drought Trend Variations Using Mann-Kendall, Sen and Pettitt Tests in Isfahan Province [PDF]

Journal of Spatial Analysis Environmental Hazarts, 2019
hamid ghorbani, abbas ali vali, hadi zarepour   +2 more
openaire   +1 more source

Temporal and spatial variability of ice cover occurrence on Carpathian rivers: a regional perspective [PDF]

Hydrology and Earth System Sciences
This article presents an analysis of the temporal and spatial variability of ice cover (IC) occurrence from 1950 to 2020 in the Polish part of the Carpathians, with a focus on climatic conditions and the impact of reservoir operations. Data on border ice
M. Fukś, Ł. Wiejaczka
doaj   +1 more source

Approximate Bayesian Computational methods

, 2011
Also known as likelihood-free methods, approximate Bayesian computational (ABC) methods have appeared in the past ten years as the most satisfactory approach to untractable likelihood problems, first in genetics then in a broader spectrum of applications.
Marin, Jean-Michel, Pudlo, Pierre, Robert, Christian P., Ryder, Robin   +3 more
core   +3 more sources

Rainfall distribution and change detection across climatic zones in Nigeria

Weather and Climate Extremes, 2014
Nigerian agriculture is mainly rain-fed and basically dependent on the vagaries of weather especially rainfall. Nigeria today has about forty-four (44) weather observation stations which provide measurement of rainfall amount for different locations ...
Stephen Bunmi Ogungbenro, Tobi Eniolu Morakinyo   +1 more
doaj   +1 more source

Identificação de períodos hidrológicos por meio de estatística descritiva e dos testes não paramétricos de pettitt e mann-kenndall

, 2015
O objetivo deste artigo é comparar resultados de períodos hidrológicos, obtidos por meio de metodologias distintas. Nesse sentido, são utilizadas técnicas de estatística descritiva, como medidas de tendência central: média, medidas de dispersão: desvio padrão – SD e coeficiente de variação – CV, selecionadas com base nos Indicadores de Alteração ...
SOUSA, Rodrigo Vitor Barbosa, ROCHA, Paulo Cesar   +1 more
openaire   +1 more source