Sorry, an error occurred while loading the content.

chapter 8 (knowledge base) exercise question about representation

Expand Messages
• Hello, I have tried to do exercise of chapter 8 and found it is more difficult than previous chapters. I have listed my answer and my consideration about one
Message 1 of 4 , Dec 9, 2003
• 0 Attachment
Hello,
I have tried to do exercise of chapter 8 and found it is more
difficult than previous chapters.
I have listed my answer and my consideration about one exercise.
Could you give me your ideas?

8.2 a.Water boils at 100 degrees.
My answer:
All e belong(e,Boil(Water)) <==> Temperature(Water) = 100
My consideration:
1. after reading General Ontology about Events. Is the represenation
correct?

8.2 b. The water in John's water bottle is frozen.
My answer:
Some x, Some y, Belong(x,Water)^In(x,y)^Type(y)=bottle^owner(y)
=John^Purpose(y)=Water
My consideration:
1. I think "bottle" is a category word, it is countable, so "bottle"
can't be used to especially pointed to this John's water bottle.
Therefore variable "y" is added. Is it right?
2. I think it is not necessary to give a name to the object in the
John's water bottle. Therefore variable "x" is added. Is it right?
3. How to represent the "water bottle"?
I have used Type(y)=bottle^Purpose(y)=Water. Does better
represetation exists, and how?
4. I don't know it is suitable to use "variable like x, y" when
represent fact not rule. How about your idea?

8.2 d All liquid has a freezing point.
My first answer:
All x, Status(x) = liquid ==> some m, (FreezingPoint(x) = Centigrade
(m))
My second answer:
All x, Some e, belong(e,Status(x) = liquid) ==> some m, (FreezingPoint
(x) = Centigrade(m))

My consideration:
1. I think that the first answer is wrong, because it restricts the
pre-condition and it is different from the statement.
2. I don't know the predicate "FreezingPoint" is too long,
like "VerySmallBearBrain". How do you think about it?

Thank you for your attention.
kind regards/chenyu
• Please unsubscribe me from yor database ... Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard
Message 2 of 4 , Dec 9, 2003
• 0 Attachment
Please unsubscribe me from yor database

Do you Yahoo!?
Protect your identity with Yahoo! Mail AddressGuard
• Fidelis Temu wrote:Please unsubscribe me from yor database ... Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard Yahoo!
Message 3 of 4 , Dec 10, 2003
• 0 Attachment

Fidelis Temu <fideldor@...> wrote:
Please unsubscribe me from yor database

Do you Yahoo!?
Protect your identity with Yahoo! Mail AddressGuard

To unsubscribe from this group, send an email to:
aima-talk-unsubscribe@yahoogroups.com

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

Do you Yahoo!?
New Yahoo! Photos - easier uploading and sharing
• Please unsubscribe me from this user group __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the Signing Bonus Sweepstakes
Message 4 of 4 , Jan 6, 2004
• 0 Attachment
Please unsubscribe me from this user group

__________________________________
Do you Yahoo!?
Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes
http://hotjobs.sweepstakes.yahoo.com/signingbonus
Your message has been successfully submitted and would be delivered to recipients shortly.