Geography Reference
In-Depth Information
10.5.2
Incorporating Semantics
In this study, semantics about hazards relate mostly to two perspectives: natural
phenomena and related human activities. Incorporating semantics of hazard-related
events sourced from web texts describes weather-related topics as well as infor-
mation about the human side of hazards.
A hazard ontology
is developed for
this case study (Fig.
10.5
). Two main upper-level classes are constructed for
the ontology,
Object
and
Happening. Object
consists of three subclasses,
Place,
Fig. 10.5
A partial view of the classes in the hazard ontology
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