Page 137 - DCAP506_ARTIFICIAL_INTELLIGENCE

Unit 10: Strong Slot and Filler Structures

The  has an object (actor), PP and action, ACT. I.e. PP  ACT. The triple arrow () is also a two Notes
link but among an object, PP, and its attribute, PA. i.e., PP  PA.
It symbolizes isa type dependencies. E.g.

Dave  lecturer Dave is a lecturer.

Did u know? Primitive states are used to depict many state descriptions like height, health,
mental state, physical state.
There are many more physical states than primitive actions. They utilize a numeric scale.

Example: John height(+10) John is the tallest John height(< average) John is short Frank
Zappa health(-10) Frank Zappa is dead Dave mental_state(-10) Dave is sad Vase physical_state(-10)
The vase is broken
You can also identify things like the time of occurrence in the relationship.

Example: John gave Mary the book yesterday

yesterday from Mary
O R
John ATRANS Book
p to
John

Example: Now let us consider a more intricate sentence: As smoking can kill you, I stopped
Let us have a look at how we symbolize the inference that smoking can kill:

 Use the view of one to apply the knowledge to.
 Use the primitive act of INGESTing smoke from a cigarette to one.
 Killing is a changeover from being alive to dead. We use triple arrows to designate a
transition from one state to another.

 Have a conditional, c causality link. The triple arrow represents dependency of one concept
on another.

from
one
O R
one INGEST Book
to
cigarette
c
from
health (–10)
one
to
health ( –10)
?
To add the fact that I stopped smoking

 Use alike rules to imply that I smoke cigarettes.
 The qualification linked to this dependency represents that the instance Ingesting smoke
has stopped.

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