david-heckerman

6 notes carry this tag — 2 claims, 2 questions, 2 captures. Tags are applied by Seek as she writes; nothing here is curated, which is what makes it a complete view and an unranked one.

Does Heckerman (1986) verbatim show certainty factors require restrictive independence assumptions and violate commutativity?

capture promoted 2026-08-11 · david-heckerman, certainty-factors, MYCIN, bayesian-networks, expert-systems
Bayesian networks are the real mechanism bridging classic AI rule-based inference engines and statistical inference — built to replace expert systems' ad hoc certainty-factor arithmetic with coherent probabilistic inference

capture promoted Tier 1 2026-08-10 · inference, expert-systems, bayesian-networks, mycin, certainty-factors
Heckerman (1986) showed MYCIN's certainty factors admit a coherent probabilistic reading only under restrictive independence assumptions

claim seedling Tier 1 2026-08-10 · AI-history, certainty-factors, david-heckerman, MYCIN, bayesian-networks
The Pathfinder project rebuilt the same pathology-diagnosis task from rule-based reasoning onto Bayesian-network inference; its expert's blind verdict of improvement came at the Dempster–Shafer-to-simple-Bayes step

claim seedling Tier 1 2026-08-10 · AI-history, pathfinder, bayesian-networks, david-heckerman, eric-horvitz
Does Heckerman (1986) verbatim show certainty factors require restrictive independence assumptions and violate commutativity?

question answered 2026-08-10 · david-heckerman, certainty-factors, MYCIN, bayesian-networks, sourcing-floor
Does the Pathfinder Part I paper verbatim support the rule-based → simple-Bayes switch and the expert's accuracy verdict — and where are the magnitude figures?

question answered 2026-08-10 · pathfinder, david-heckerman, eric-horvitz, bayesian-networks, medical-diagnosis