I agree that not all knowledge in a mind needs to be grounded. 
 
However, I think that a mind needs to have a LOT of grounded knowledge, in order to learn to reason usefully.  It can then transfer some of the thinking-ability (and some of the concrete relationships) learned on the grounded domains, to help it think about its ungrounded knowledge...
 
ben g
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, February 04, 2004 3:23 AM
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Subject: RE: [agi] WordNet and NARS

Ben said:

 

> However, we need to remember that the knowledge in an AGI should be *experientially grounded*. 

> . . . but it needs to turn this "knowledge" into knowledge by crosslinking a decent fraction of it with

> perceptual and procedural patterns . . .

 

Can a color-blind man understand �yellow?�  Perhaps not in the same way a normal person can.  But he could easily know more about yellow than many.  Its wavelength, its history of use in fine arts, its psychological impact, and so on.  He could even effectively use yellow in graphics, perhaps with a tool to identify yellow with a special texture.    

 

So, even though the color-blind (or an AI entity) never actually �sees� yellow, he can �experience� yellow by way of external knowledge.  Perhaps the limit to this �grounding by knowledge� phenomenon is very high. Maybe as Ben says, the grounding can be by �procedural patterns.�  WordNet type knowledge (implemented in a system such as NARS) could be a link to human knowledge.

 

A yellow filter in the sights of a target rifle makes the target-sight image more distinct in low light.  While I have never experienced it myself, the book in which I found this information is a standard reference for Olympic caliber competitors.  So as a NARS based intelligence, I give this belief �f� and �c� values of .99 :-)  

 

Kevin Copple

 


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