Hypothesizing Device Mechanisms: Opening Up the Black Box

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,...

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Main Author: Doyle, Richard James
Language:en_US
Published: 2004
Subjects:
Online Access:http://hdl.handle.net/1721.1/6839
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author Doyle, Richard James
author_facet Doyle, Richard James
author_sort Doyle, Richard James
collection MIT
description 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.
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spelling mit-1721.1/68392019-04-12T08:32:27Z Hypothesizing Device Mechanisms: Opening Up the Black Box Doyle, Richard James causal reasoning theory formation qualitative reasoning smodeling 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. 2004-10-20T20:01:02Z 2004-10-20T20:01:02Z 1988-06-01 AITR-1047 http://hdl.handle.net/1721.1/6839 en_US AITR-1047 213 p. 19331119 bytes 7483468 bytes application/postscript application/pdf application/postscript application/pdf
spellingShingle causal reasoning
theory formation
qualitative reasoning
smodeling
Doyle, Richard James
Hypothesizing Device Mechanisms: Opening Up the Black Box
title Hypothesizing Device Mechanisms: Opening Up the Black Box
title_full Hypothesizing Device Mechanisms: Opening Up the Black Box
title_fullStr Hypothesizing Device Mechanisms: Opening Up the Black Box
title_full_unstemmed Hypothesizing Device Mechanisms: Opening Up the Black Box
title_short Hypothesizing Device Mechanisms: Opening Up the Black Box
title_sort hypothesizing device mechanisms opening up the black box
topic causal reasoning
theory formation
qualitative reasoning
smodeling
url http://hdl.handle.net/1721.1/6839
work_keys_str_mv AT doylerichardjames hypothesizingdevicemechanismsopeninguptheblackbox