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Artificial Intelligence and Soft Computing: Behavioral ... - Arteimi.info

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Is-a<br />

Is-a<br />

Is-a<br />

Protozoa<br />

Bacteria<br />

Is-a<br />

Living<br />

organism<br />

Is-a Is-a Is-a<br />

Is-a<br />

Arthropod<br />

Annelida<br />

Porifera<br />

i ) The monotonic / absolute links will be denoted by ‘’ , whereas<br />

default links will be denoted by ‘ ------>’ .<br />

ii ) Nodes in the graph denote either constants / predicates. No links<br />

should point towards a constant. The monotonic edges <strong>and</strong> their<br />

negations may point away from a constant.<br />

iii) A link p→q denotes the predicate Q(p), when p is constant; otherwise<br />

it denotes<br />

∀X (p(X) q(X)) ,<br />

Biological<br />

mass<br />

Is-a<br />

Nonliving<br />

organism<br />

Is-a<br />

Invertebrate Vertebrate<br />

Fig. 8.7: The Is-a hierarchy of biological species.<br />

Mollusca

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