Self-adaptive behaviours in the context of Component-based Architecture are generally designed based on past monitoring events, configurations (component assemblies) as well as behavioural programs defining the adaptation logics and invariant properties.
An estimated 30% of participants enrolled in the project should agree to participate in this component, based on past primary care experiences described in the literature [ 32, 33].
Therefore, we selected the following key PM2.5 chemical components based on past source-apportionment studies in NYC (e.g., Ito et al. 2004; Lall and Thurston 2006; Qin et al. 2006) and recent health effects studies discussed in the introductory remarks: EC, OC, Ni, V, zinc (Zn), SO4, selenium (Se), Br, NO3, and Na+.
A crucial question to address is how to estimate the time between requests, α i, for each component of type i, based on past data.
DM uses the fourth component known as Machine Learning Engine (MLE), to predict future requests based on past workloads.
These are based on past volatility.
That estimate is based on past experience.
(Based on past experience, it is a big advantage).
"I have to make that assumption, based on past history".
It simply makes an educated guess based on past spending.
