Page 130 - DCAP506_ARTIFICIAL_INTELLIGENCE

Artificial Intelligence

Notes 12. A ............................. is a particular class whose elements are themselves classes.
13. A ............................. is a set of ordered pairs so one relation is a subset of another.
14. ............................. of default values appears when one element or class is an instance of a
class.
15. Every slot has a domain and ............................. .

9.3 Summary

 Weak Slot and Filler Structures facilitates attribute values to be improved speedily where
declarations are indexed by the entities and binary predicates are indexed by first argument.
 Weak Slot and Filler Structure permits ease of deliberation as it embraces features of
object oriented programming.
 In semantic nets, The information is accumulated by interconnecting nodes with labeled
arcs.

 The view that spreading activation out of two nodes and locating their intersection locates
relationships between objects.
 Partitioned Semantic Networks permit for propositions to be made without assurance to
truth and expressions to be measured.
 Basic idea of extended semantic net is to break network into spaces which comprise groups
of nodes and arcs and consider each space as a node.

 A frame is a compilation of attributes or slots and related values that portray some actual
world entity.

 Frames on their own are not mainly useful but frame systems are a powerful manner of
encoding information to sustain reasoning.

9.4 Keywords

Filler: A filler is a value that a slot can take — could be a numeric, string (or any data type) value
or a pointer to a different slot.
Frame: A frame is a compilation of attributes or slots and related values that portray some actual
world entity.
Slot: A slot is an attribute value pair in its simplest outline.

9.5 Review Questions

1. Construct Semantic Net representations of the following:
(a) Dave is Welsh, Dave is a Lecturer.
(b) Paul lent his new Frank Zappa CD to his best friend.

2. Represent the following in partitioned semantic networks:
(a) Every player kicked a ball.
(b) All players like the referee.

(c) Andrew believes that there is a fish with lungs.

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