Applied Semantic Web Technologies

216  ◾  Dae-Ki Kang

a nominal odor attribute of the AGARICUS-LEPIOTA mushroom data set of the

University of California at Irvine (UCI; Blake and Merz, 1998).

Hierarchical groupings of attribute values (AVTs) are common in the biological

sciences. For example, the Gene Ontology Consortium is developing hierarchical

taxonomies for describing many aspects of macromolecular sequences, structures,

and functions (Ashburner et al., 2000). Undercoer et al. (2003) developed a hier-

archical taxonomy that captures features that are observable or measurable by the

target of an attack or by a system of sensors acting on behalf of a target. Several

ontologies ...