Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Nana Kena Frempong"'
Autor:
Frank Kofi Owusu, Peter Amoako-Yirenkyi, Nana Kena Frempong, Akoto Yaw Omari-Sasu, Isaac Adjei Mensah, Henry Martin, Adu Sakyi
Publikováno v:
Heliyon, Vol 9, Iss 8, Pp e18821- (2023)
In this extant paper, a multivariate time series model using the seemingly unrelated times series equation (SUTSE) framework is proposed to forecast the peak and short-term electricity demand using time series data from February 2, 2014, to August 2,
Externí odkaz:
https://doaj.org/article/0314d9222f8b44fbb10307090e72d417
Publikováno v:
Scientific African, Vol 19, Iss , Pp e01556- (2023)
This study proposes a modified Geometric Brownian motion (GBM), to simulate stock price paths under normal and convoluted distributional assumptions. This study utilised four selected continuous probability distributions for the convolution because o
Externí odkaz:
https://doaj.org/article/1a5d1d715eab42449bd54a34251e1d5e
Publikováno v:
Journal of Probability and Statistics, Vol 2023 (2023)
Empirical evidence suggests that the traditional GARCH-type models are unable to accurately estimate the volatility of financial markets. To improve on the accuracy of the traditional GARCH-type models, a hybrid model (BSGARCH (1, 1)) that combines t
Externí odkaz:
https://doaj.org/article/0cc01b405007421ab81767201a59916a
Publikováno v:
SN Applied Sciences, Vol 3, Iss 5, Pp 1-24 (2021)
Abstract Considering the complexities and challenges in the classification of multiclass and imbalanced fault conditions, this study explores the systematic combination of unsupervised and supervised learning by hybridising clustering (CLUST) and opt
Externí odkaz:
https://doaj.org/article/25cd3287350c421c875504043f9f0977
Publikováno v:
Heliyon, Vol 7, Iss 5, Pp e06941- (2021)
In this paper we proposed three estimators namely linear shrinkage, preliminary test and shrinkage preliminary test for the rate parameter of univariate gamma. The salient feature of the proposed estimators is the admissibility property that is defin
Externí odkaz:
https://doaj.org/article/7a417b234588471abe92ed2c29f539ff
Autor:
Nana Kena Frempong, Theophilus Acheampong, Ofosuhene O. Apenteng, Emmanuel Nakua, John H. Amuasi
Publikováno v:
PLoS ONE, Vol 16, Iss 10 (2021)
This paper uses publicly available data and various statistical models to estimate the basic reproduction number (R0) and other disease parameters for Ghana’s early COVID-19 pandemic outbreak. We also test the effectiveness of government imposition
Externí odkaz:
https://doaj.org/article/5d9017546f5a432eb19f41351e4f4278
Publikováno v:
Journal of Probability and Statistics, Vol 2018 (2018)
This study exploits the closure property of the converse convolution operator to come up with a hybrid Clayton-Frank Archimedean copula for two random variables. Pairs of random variables were generated and the upper tail observation of the cumulativ
Externí odkaz:
https://doaj.org/article/838f7db25d694405aa17e4912c04eced
Autor:
Richard Kodzo Avuglah, Nana Kena Frempong, Akoto Yaw Omari-Sasu, Maxwell Akwasi Boateng, PhD., MIMA
Publikováno v:
Journal of Probability and Statistics. 2022:1-7
Knowledge of the dependence between random variables is necessary in the area of risk assessment and evaluation. Some of the existing Archimedean copulas, namely the Clayton and the Gumbel copulas, allow for higher correlations on the extreme left an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be073b18e756d54d76dab3eeac173e8b
https://doi.org/10.1155/2022/1422394
https://doi.org/10.1155/2022/1422394
Publikováno v:
SN Applied Sciences, Vol 3, Iss 5, Pp 1-24 (2021)
Abstract Considering the complexities and challenges in the classification of multiclass and imbalanced fault conditions, this study explores the systematic combination of unsupervised and supervised learning by hybridising clustering (CLUST) and opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53e5c0be6ab180cf444d38548d0ccd15
https://doaj.org/article/25cd3287350c421c875504043f9f0977
https://doaj.org/article/25cd3287350c421c875504043f9f0977
Autor:
Ransmond Opoku Berchie, Richard Baidoo, Osei Yaa Oforiwaa-Amanfo, Nana Kena Frempong, Benjamin Abijah
Publikováno v:
Applied Mathematical Sciences. 15:189-200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::799d7097e7ef0ae98a1adefc2f97a3df
https://doi.org/10.12988/ams.2021.914276
https://doi.org/10.12988/ams.2021.914276