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[return to "Cyc: History's Forgotten AI Project"]
1. blueye+Fp[view] [source] 2024-04-17 22:46:18
>>iafish+(OP)
Cyc is one of those bad ideas that won't die, and which keeps getting rediscovered on HN. Lenat wasted decades of his life on it. Knowledge graphs like Cyc are labor intensive to build and difficult to maintain. They are brittle in the face of change, and useless if they cannot represent the underlying changes of reality.
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2. mindcr+5r2[view] [source] 2024-04-18 17:35:03
>>blueye+Fp
They are brittle in the face of change, and useless if they cannot represent the underlying changes of reality.

FWIW, KG's don't have to be brittle. Or, at least they don't have to be as brittle as they've historically been. There are approaches (like PROWL[1]) to making graphs probabilistic so that they're asserting subjective beliefs about statements, instead of absolute statements. And then the strength of those beliefs can increase or decrease in response to new evidence (per Bayes Theorem). Probably the biggest problem with this stuff is that it tends to be crazy computationally expensive.

Still, there's always the chance of an algorithmic breakthrough or just hardware improvements bringing some of this stuff into the real of practical.

[1]: https://www.pr-owl.org/

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