Building plans for household tasks from distributed knowledge
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United States of America Patent
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May 6, 2008
Grant Date -
Jan 25, 2007
app pub date -
Dec 6, 2005
filing date -
Jul 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and a method are disclosed that provide plans for autonomous machines such as humanoid robots to perform indoor task. Human subjects contribute plans to a knowledge database. Information in the knowledge database is pre-processed to identify task steps and characterize them as action-object pairs, from which a plan database is created. A discriminative technique uses hierarchical agglomerative clustering to select an existing plan from the plan database. A generative technique formulates new plans from the plan database using first-order Markov chains, and may take into account information about the operational environment. Experimentation and evaluation by human subjects confirm the efficacy of both techniques.
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Family
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