I describe an approach to forming hypotheses about hidden mechanism configurations within devices given external observations and a vocabulary of primitive mechanisms. An implemented causal modelling system called JACK constructs explanations for why a second piece of toast comes out lighter, why the slide in a tire gauge does not slip back inside when the gauge is removed from the tire, and how in a refrigerator a single substance can serve as a heat sink for the interior and a heat source for the exterior. I report the number of hypotheses admitted for each device example, and provide empirical results which isolate the pruning power due to different constraint sources.
| Identifer | oai:union.ndltd.org:MIT/oai:dspace.mit.edu:1721.1/6839 |
| Date | 01 June 1988 |
| Creators | Doyle, Richard James |
| Source Sets | M.I.T. Theses and Dissertation |
| Language | en_US |
| Detected Language | English |
| Format | 213 p., 19331119 bytes, 7483468 bytes, application/postscript, application/pdf |
| Relation | AITR-1047 |
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