On Fri, Nov 02, 2007 at 06:56:18PM -0400, Benjamin Goertzel wrote: > > I think the main problems you'll find with this kind of system are as > follows. > > The difficulties with the NLP part.. > > -- Reference resolution > -- Semantic disambiguation, esp. of words besides nouns and verbs > -- Preposition disambiguation > > The difficulties with the reasoning part.. > > > -- Propagating uncertainty usefully thru logical reasoning steps (I think > we've solved this once with PLN, though) > -- Inference control! ... choosing what inferences to do, which is only > a problem when you have a very large KB > -- Contextual understanding. Most propositions parsed out of text will > have validity only in a certain context, but the context is left implicit > and > needs to be inferred.
OK, no argment there. I've aleady started bumping into some of these, in a limited way. > I think that many people who have started down the path you're on, have > realized this fact, and have wound up spending their research careers > working on one of the AGI-hard subsidiary problems I've mentioned, > or other similar ones ;-) And so I suspected. But I am hoping that, perhaps, with things like agisim, opencog, one can start putting together a modular, engineered platform where many of these difficulaties are walled off into blocks of code where the algorithms can be toyed with, cut-pasted-replaced. Maybe. Out of curiosity, how would you rank the "IQ" of your current code? After a few weekends of hacking, and about 3KLoc of code, I can get the following squeezed out of the opencyc kb: cyc-net> who is lincoln Abe Lincoln is a famous person. He is a thing that exists in time. He is a male person, who is a famous person. Abe Lincoln is a man. He is an ethnic Caucasian. He is an United States president, who is a historical figure. Abe Lincoln is an One of the presidents of the United States. He is a dead organism. cyc-net> what is copper? I know of several things named "copper". They are: There's copper, the copper, which is an orangeish thing. There's copper, copper, which is a mineral. cyc-net> who is betsy ross I've never heard of betsy ross. Tell me about him. cyc-net> who is macbeth I've never heard of macbeth. Tell me about him. cyc-net> who is lucy liu Lucy Liu is a female person. She is a television actor. These are the result of very very direct reasoning, very low cpu usage (under 2 seconds, except for Lincoln, which had to weed out 20 things named "Lincoln County") and yet, its vaguely comparable to something that a 6-7-8-9-year-old might produce. Where is the developmental jump? At the pre-teen level? --linas ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?member_id=8660244&id_secret=60658634-0a8135
