The space navigation system is a case in point. I listened to a talk by Peter Norvig in which he talked about looking at the moton of the heavens in an empirical way. Let's imagine angels and crystal spheres and see where we get. He rather decried Newton and the apple. In fact the apple story isn't true. Newton investigated gravity after discussion with Halley of comet fame. Newton was not generous enough to admit this and came up the "*apple*" story. In fact there is a 7th parameter - the planet's mass. This is needed when you think about the effect that a planet has on the others. Adams and Leverrier discovered Neptune in 1846 by looking at irregularities in the orbit of Uranus.
Copernicus came up with the Heliocentric theory because Ptolomy's epicycles were so cumbersome. In fact a planet can be characterised by 6 things. Its major axis, its eccentricity, the plane of its orbit, the angle of the major axis and the position in orbit - time. These parameters are constant unless a third body is present. How do we get to Saturn? Cassini had a series of encounters. We view each encounter by calculating first a solar orbit and then a Venusian/Terrestrial/Jovian orbit. Deep in an encounter a planet is the main influence. 3 body problems are tricky and we do a numerical computation with time steps. We have to work out first of all the series of encounters and then the effects of inaccuracies. We need to correct, for example *before* we encounter a planet. How does this fit in with AGI? Well Peter I don't think you empirical approach will get you to Saturn. There is the need for theoretical knowledge. How is this knowledge represented in AGI? It is represented in an abstract mathematical form, a form which describes a general planet and incorporates the inverse square law. What in fact we need to know about space navigation is whether our system incorporates these abstract definitions. I would view AGI as something which will understand an abstract definition. This is something a little meta mathematical. It understands ellipses and planets in general and wants to know how this knowledge is incorporated in our system. In fact I would view AGI as something checking on the integrity of other programs. *Abstract Language* * * By this I mean an abstract grammatical description of a language, gender and morphology. This is vital. I don't think our Peter has ever learnt Spanish even, at least not properly. We can find out what morphology a word has once we have a few examples if*f* we have a morphological description built in. - Ian Parker > A narrow "embedded" system, like say a DMV computer network is not an AGI. > But that doesn't mean an AGI could not perform that function. In fact, AGI > might arise out of these systems needing to become more intelligent. And an > AGI system, that same AGI software may be used for a DMV, a space > navigation > system, IRS, NASDAQ, etc. it could adapt. .. efficiently. There are some > systems that tout multi-use now but these are basically very narrow AI. AGI > will be able to apply it's intelligence across domains and should be able > to > put its feelers into all the particular subsystems. Although I foresee some > types of standard interfaces perhaps into these narrow AI computer > networks; > some sort of intelligence standards maybe, or the AGI just hooks into the > human interfaces... > > An AGI could become a God but also it could do some useful stuff like run > everyday information systems just like people with brains have to perform > menial labor. > > John > > > > > > ------------------------------------------- > agi > Archives: https://www.listbox.com/member/archive/303/=now > RSS Feed: https://www.listbox.com/member/archive/rss/303/ > Modify Your Subscription: > https://www.listbox.com/member/?&; > Powered by Listbox: http://www.listbox.com > ------------------------------------------- agi Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: https://www.listbox.com/member/?member_id=8660244&id_secret=8660244-6e7fb59c Powered by Listbox: http://www.listbox.com
