Results 81 to 90 of about 4,509 (203)
Prediction of stock prices with automated reinforced learning algorithms
Expert Systems, Volume 42, Issue 2, February 2025.Abstract Predicting stock price movements remains a major challenge in time series analysis. Despite extensive research on various machine learning techniques, few models have consistently achieved success in automated stock trading. One of the main challenges in stock price forecasting is that the optimal model changes over time due to market dynamics.
Said Yasin +2 more
wiley +1 more source
The Enhanced EWMA Control Chart with Autocorrelation
Jurnal Teknologi, 2014 Control charts are effective tool with regard to improving process quality and productivity, Shewhart control charts are efficiently good at detecting large shifts in a given process but very slow in detecting small and moderate shifts, such problem could be tackled through design of sensitizing rules.
Farouk, Abbas Umar, Mohamad, Ismail
openaire +2 more sources
Designing an efficient adaptive EWMA model for normal process with engineering applications
Ain Shams Engineering JournalStability in process parameters is required to ensure the quality of the finished item. Control charts, as one of the critical parts of statistical process monitoring (SPM), have seen widespread use across many disciplines for detecting and responding to
Zahid Rasheed +5 more
doaj +1 more source
A Fuzzy EWMA Attribute Control Chart to Monitor Process Mean
Information, 2018 Conventional control charts are one of the most important techniques in statistical process control which are used to assess the performance of processes to see whether they are in- or out-of-control.
Muhammad Zahir Khan +4 more
doaj +1 more source
EnergiesThe inevitability of faults arises due to prolonged exposure of photovoltaic (PV) power plants to intricate environmental conditions. Therefore, fault diagnosis of PV power plants is crucial to ensure the continuity and reliability of power generation ...
Jun Su +4 more
doaj +1 more source
Journal of Control Science and Engineering, 2016 An online robust fault detection method is presented in this paper for VAV air handling unit and its implementation. Residual-based EWMA control chart is used to monitor the control processes of air handling unit and detect faults of air handling unit ...
Haitao Wang
doaj +1 more source
Evaluation of the Run-Length Distribution for a Combined Shewhart-EWMA Control Chart [PDF]
, 2007 A simple algorithm is introduced for computing the run length distribution of a monitoring scheme combining a Shewhart chart with an Exponentially Weighted Moving Average control chart.
Capizzi, Giovanna, Masarotto, Guido
core +1 more source
Eyes wide shut? The US house market bubble through the lense of statistical process control [PDF]
, 2012 While most economists agree that the recent worldwide financial crises evolved as a consequence of the US house price bubble, the related literature yet failed to deliver a consensus on the question when exactly the bubble started developing.
Berlemann, Michael +2 more
core +2 more sources
Enhancing Risk-Adjusted EWMA Control Chart Utilizing Artificial Neural Networks
Journal of Statistical Theory and Applications (JSTA)This study focuses on implementing a quality framework to improve patient quality and safety in healthcare. Evaluating the performance of healthcare services, especially under different patient health conditions poses significant challenges.
Abdullah Ali H. Ahmadini +3 more
doaj +1 more source
On detecting jumps in time series: Nonparametric setting [PDF]
Motivated by applications in statistical quality control and signal analysis, we propose a sequential detection procedure which is designed to detect structural changes, in particular jumps, immediately.
Pawlak, Mirek +2 more
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