Heart Health Risk Assessment System: A Nonintrusive Proposal Using Ontologies and Expert Rules

Algorithm 2

Two examples of personalized expert rules.

𝑅_𝑃1:

 Person(?𝑝) ∧

 performsActivity(?𝑝,“𝐶𝑦𝑐𝑙𝑖𝑛𝑔”) ∧

 exceeds(?𝑝.ℎ𝑟_𝑐𝑢𝑟𝑟𝑒𝑛𝑡,200) ∧

 hasContext(?𝑝, “𝑇𝑟𝑎𝑖𝑛𝑖𝑛𝑔”)

 ⇒  set(“𝑇𝑟𝑎𝑖𝑛𝑖𝑛𝑔”.𝑎𝑙𝑎𝑟𝑚_𝑙𝑒𝑣𝑒𝑙=“𝑀𝑒𝑑𝑖𝑢𝑚”)

 ⇒  set(“𝑇𝑟𝑎𝑖𝑛𝑖𝑛𝑔”.𝑐𝑜𝑚𝑚𝑒𝑛𝑡=“𝑅𝑒𝑑𝑢𝑐𝑒𝑠𝑝𝑒𝑒𝑑𝑡𝑜20𝑘𝑚/ℎ𝑑𝑢𝑟𝑖𝑛𝑔10𝑚𝑖𝑛𝑠.”)

𝑅_𝑃2:

 Elderly(?𝑝) ∧

 performsActivity(?𝑝,“𝑆𝑡𝑎𝑖𝑟_𝐶𝑙𝑖𝑚𝑏𝑖𝑛𝑔”) ∧

 exceeds(?𝑝.ℎ𝑟_𝑐𝑢𝑟𝑟𝑒𝑛𝑡,120) ∧

 hasContext(?𝑝,?𝑐) ∧

 MedicalContext(?𝑐)

 ⇒  set(𝑐.𝑎𝑙𝑎𝑟𝑚_𝑙𝑒𝑣𝑒𝑙=“𝑀𝑒𝑑𝑖𝑢𝑚”)

 ⇒  set(𝑐.𝑎𝑙𝑎𝑟𝑚.𝑐𝑜𝑚𝑚𝑒𝑛𝑡=“𝐶𝑙𝑖𝑚𝑏𝑡ℎ𝑒𝑠𝑡𝑎𝑖𝑟𝑠𝑠𝑙𝑜𝑤𝑒𝑟𝑛𝑒𝑥𝑡𝑡𝑖𝑚𝑒”)