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Complete addition formulas on the level four theta model of elliptic curves

Publikováno v: Afrika Matematika. 31:465-481

The addition formula provided for the recently discovered level four theta model of elliptic curve (Diao and Fouotsa in Afr Math 26(3):283–301, 2015) is not complete; meaning that it does not work for all inputs. In this work we provide three alter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26e62d6daab5595c672b98b32057d553
https://doi.org/10.1007/s13370-019-00736-6

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Forecasting with a hybrid method utilizing data smoothing, a variation of the Theta method and shrinkage of seasonal factors

Autor: Vassilios Assimakopoulos, Evangelos Spiliotis, Konstantinos Nikolopoulos

Publikováno v: International Journal of Production Economics. 209:92-102

In this paper, we discuss how extrapolation can be advanced by using some of the most successful elements and paradigms from the forecasting literature. We propose a new hybrid method that utilises: a) the decomposition approach of the Theta method,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0fe2aa1a648440dc5d44282064a3cce
https://doi.org/10.1016/j.ijpe.2018.01.020

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Stochastic forecasting of COVID-19 daily new cases across countries with a novel hybrid time series model

Autor: Tanujit Chakraborty, Monalisha Pattnaik, Arinjita Bhattacharyya

Publikováno v: Nonlinear Dynamics

An unprecedented outbreak of the novel coronavirus (COVID-19) in the form of peculiar pneumonia has spread globally since its first case at Wuhan, China, in December 2019, increasing infected cases and mortality at a pandemic speed. Thus, forecasting

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::709bd27f14298a31470c8f0bc2e76ab0
https://pubmed.ncbi.nlm.nih.gov/35039713

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Akademický článek

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Estimates by bootstrap interval for time series forecasts obtained by theta model

Autor: Daniel S. Steffen, Anselmo Chaves Neto

Publikováno v: Independent Journal of Management & Production, Vol 8, Iss 1, Pp 144-158 (2017)
Independent Journal of Management & Production; Vol. 8 No. 1 (2017): Independent Journal of Management & Production; 144-158
Independent Journal of Management & Production
Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP)
instacron:IJM&P
Independent Journal of Management & Production; Vol 8, No 1 (2017): Independent Journal of Management & Production; 144-158

In this work, are developed an experimental computer program in Matlab language version 7.1 from the univariate method for time series forecasting called Theta, and implementation of resampling technique known as computer intensive "bootstrap" to est

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http://www.ijmp.jor.br/index.php/ijmp/article/view/480

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Bifurcation of the neuronal population dynamics of the modified theta model: transition to macroscopic gamma oscillation

Autor: Kiyoshi Kotani, Akihiko Akao, Hayato Chiba

Interactions of inhibitory neurons produce gamma oscillations (30–80 Hz) in the local field potential, which is known to be involved in functions such as cognition and attention. In this study, the modified theta model is considered to investigate

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Spiking, Bursting, and Population Dynamics in a Network of Growth Transform Neurons

Autor: Ahana Gangopadhyay, Shantanu Chakrabartty

Publikováno v: IEEE Transactions on Neural Networks and Learning Systems. 29:2379-2391

This paper investigates the dynamical properties of a network of neurons, each of which implements an asynchronous mapping based on polynomial growth transforms. In the first part of this paper, we present a geometric approach for visualizing the dyn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7adc65156cd790b9a520a7dcb6ede86
https://doi.org/10.1109/tnnls.2017.2695171

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