Control charts are generally use in quality control processes, especially in the industrial
sector, because they are helpful to increase productivity. However, control charts can also …

Dengue hemorrhages fever (DHF) is an infectious disease epidemic in the community. DHF
is caused by a virus that is transmitted through the bite of mosquitoes Aedes sp. The aim of …

In time series data, sometimes an extreme value is found and becomes an outlier. In this
paper, a procedure to detect and remove the effect of outlier are discussed to obtain a more …

Numerous issues arise from stochastic processes with temporal and spatial index
parameters. From 2020, Covid-19 has occurred worldwide. Combining time series with …

The nonstationary in time series data may be caused by the existence of intervention,
outliers, and heteroscedastic effects. The outliers can represent an intervention so that it …

Extreme events in a time series model can be detected when the precise timing of the event,
known as the intervention, is known. When the exact timing of an event is unknown, it is …

Peatlands serve as vital carbon reservoirs, exhibiting two stability condi-tions. In a stable
state, they absorb CO2 with slow decomposition. In contrast, an unstable state causes faster …

Control charts are often used in quality control processes, especially in the industrial sector
because of their significant benefits in increasing industrial production. However, control …

Peatlands serve as vital carbon reservoirs, exhibiting two stability conditions. In a stable
state, they absorb CO2 with slow decomposition. In contrast, an unstable state causes faster …

Abstract Dengue Hemorrhagic Fever (DHF) is a mosquito-borne infection caused by the
dengue virus, primarly found in the tropics and sub-tropics. The Indonesian country is a …