Class � MIT context aware reading group

Greg Detre

Wednesday, December 11, 2002

 

re-reading Lenat, Bouquet & Serafini and McCarthy

 

PLC � valid formulae

LMS/MCS � logical consequences

 

Cyc

what are the 12d missing?

relation between contexts

implicit in the distance

 

goals???

defining a context is different from building a context aware system

systems have goals

 

Ted:

syntactic + semantic

sensor � what it gives vs what it means

you have to turn them into symbols

but they have different meaning in different situations

and so different statements in cyc will be relevant

sensors can be seen as making assertions

you need to make a lot of assertions about your sensors though

it shouldn�t boil down to the knowledge engineering

no learning

experimental pocket of hypothetical assertions that it adds + withdraws

what do you have to do to leverage Cyc???

what module do we attach??? e.g. to get it to help with pervasive computing

 

Ted: learning = recording to predict

no, learning is about getting to the essence, it�s a distortion

formal logic is bad for a big mess of analogue sensors

clustering in connectionist system for concept formation

 

proposal � adaptive UIs

Sesame � learning from what�s on the screen

Programming by demonstration/example

missing � analysis of the power of that approach

 

context � what it means depends on what resolution you�re talking about

context is implicitly contained in any learning system