#13000Two styles of performing inference in semantic networks are presented and compared. Path-based inference allows an arc or a path of arcs between two given nodes to be inferred from the existence of another specified path between the same two nodes.
tech,0-4-T78-1031,ak
relational calculus notation
</term>
.
<term>
Node-based inference
</term>
allows a structure of
<term>
nodes
#13043Path-based inference rules may be written using a binary relational calculus notation. Node-based inference allows a structure of nodes to be inferred from the existence of an instance of a pattern of node structures.
model,8-5-T78-1031,ak
rules
</term>
can be constructed in a
<term>
semantic network
</term>
using a variant of a
<term>
predicate
#13074Node-based inference rules can be constructed in a semantic network using a variant of a predicate calculus notation.
tech,0-6-T78-1031,ak
predicate calculus notation
</term>
.
<term>
Path-based inference
</term>
is more efficient , while
<term>
node-based
#13085Node-based inference rules can be constructed in a semantic network using a variant of a predicate calculus notation. Path-based inference is more efficient, while node-based inference is more general.
tech,7-6-T78-1031,ak
inference
</term>
is more efficient , while
<term>
node-based inference
</term>
is more general . A method is described
#13092Path-based inference is more efficient, while node-based inference is more general.