Applied Semantic Web Technologies

70  ◾  Mariela Rico et al.

generally missing in the representation of that entity. When ontologies are devel-

oped without this consideration, it is impossible for a matching process to detect

whether those terms are equivalent or not. In such cases, improving matching strat-

egies or techniques is not useful because the conicts relate to incomplete represen-

tations in the ontologies to be matched.

e treatment of incomplete information has been widely addressed in data-

base research [11]. e most common technique is to model missing data with a

pseudo-description called a null to denote missing information. Another approach

[30] based on possibility theory provides an explicit distinction between incom-

pleteness due to data unavailability a ...