Table 1.

Semantic Web of Things (SWoT) for Environmental Sensing [10,12,83,84].

Ref.	Sensing Framework	Semantic Formalism	Explainability	Domain
[91]	Custom	Simple taxonomy	Visual interface	Smart City
[92]	Custom	Ontology	No	Smart City
[94]	Custom	Ontology (SOSA, SSN)	Visual interface	Smart City
[97]	Custom	Relational database	Visual interface	Traffic
[98]	Custom	Ontology (O&M)	Visual interface	Traffic
[99]	None	Out of the scope	Visual interface	Agri-food
[100]	None	Out of the scope	No	Emotions
[101]	None	Out of the scope	No	Education
[102]	Custom	Relational database	Visual interface	e-Health
[103]	None	Out of the scope	No	Fatigue detection
[96]	LSM	Ontology (SSN)	Visual interface	cross-domain
[84]	SWoT4CPS	Ontology (SSN), rules	No	cross-domain