Zobrazeno 1 - 10
of 1 886
pro vyhledávání: '"exponentially weighted moving average"'
Publikováno v:
International Journal of Quality & Reliability Management, 2023, Vol. 41, Issue 9, pp. 2421-2433.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJQRM-08-2022-0257
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Time-based surveys often experience missing data due to several reasons, like non-response or data collection limitations. Imputation methods play an essential role in incorporating these missing values to secure the accuracy and reliability
Externí odkaz:
https://doaj.org/article/3e4cc3241f1146298db2cee74decb01a
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Pulse rate (PR) and respiratory rate (RR) are two of the most important vital signs. Monitoring them would benefit from easy-to-use technologies. Hence, wearable devices would, in principle, be ideal candidates for such systems. The neck, al
Externí odkaz:
https://doaj.org/article/07b08e6b1d814d879e82008c9afe11a5
Publikováno v:
Cogent Business & Management, Vol 11, Iss 1 (2024)
A significant amount of historical returns is needed for the generalized autoregressive conditional heteroscedasticity (GARCH) models to be calibrated. Newer cryptocurrencies, such as non-fungible tokens (NFTs), have relatively limited data to create
Externí odkaz:
https://doaj.org/article/0b3c6f0b2b934d24b6e99ce141b40987
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Control charts have been used to monitor product manufacturing processes for decades. The exponential distribution is commonly used to fit data in research related to healthcare and product lifetime. This study proposes an exponentially weig
Externí odkaz:
https://doaj.org/article/a4a6e0a2cb7b463ea5b24c09007555a9
Publikováno v:
Frontiers in Sports and Active Living, Vol 6 (2024)
ObjectiveQuantifying and managing the matches and training loads of players is important for injury prevention. As rugby union is a full-contact sport and frequent contact injuries occur, it might also be important to quantify and manage players’ c
Externí odkaz:
https://doaj.org/article/e0c51039a15c443ca5a86e6ea0b42b85
Publikováno v:
AIMS Mathematics, Vol 8, Iss 12, Pp 30075-30101 (2023)
Statistical process control is a procedure of quality control that is widely used in industrial processes to enable monitoring by using statistical techniques. All production processes are faced with natural and unnatural variations. To maintain the
Externí odkaz:
https://doaj.org/article/225f3d93a9214c7a8df89ecae37df0d7
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract This research designed a distribution-free mixed exponentially weighted moving average-moving average (EWMA-MA) control chart based on signed-rank statistic to effectively identify changes in the process location. The EWMA-MA charting statis
Externí odkaz:
https://doaj.org/article/5e7fde80eda94ee084b6d0eac961d9ff
Autor:
Pei-Hsi Lee, Shih-Lung Liao
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract In recent years, deep learning methods have been widely used in combination with control charts to improve the monitoring efficiency of complete data. However, due to time and cost constraints, data obtained from reliability life tests are o
Externí odkaz:
https://doaj.org/article/6ab1ca3c9be44ffa8b7c93a424b440b0
Autor:
Lin Xiao, Arash Sioofy Khoojine
Publikováno v:
Energies, Vol 17, Iss 23, p 5852 (2024)
Investigating the stability of and fluctuations in the energy market has long been of interest to researchers and financial market participants. This study aimed to analyze the Chinese energy market, focusing on its volatility and response to financi
Externí odkaz:
https://doaj.org/article/984de9508dec4a138359c3a977b7a19b