Asymmetric information measures: how to extract knowledge from an expert so that the expert's effort is minimal
by Hung T. Nguyen, Vladik Kreinovich, Elizabeth Kamoroff
International Journal of Automation and Control (IJAAC), Vol. 2, No. 2/3, 2008

Abstract: Knowledge acquisition is when we ask experts questions, and put the answers into a computer system. Since this is a very time-consuming task, it is desirable to minimise the effort of an expert. As a crude estimate for this effort, we can take a number of binary (yes-no) questions that we ask. The procedure that minimises this number is binary search. This approach does not take into account that people often feel more comfortable answering 'yes' than answering 'no'. So, to make our estimates more realistic, we will take into consideration that for a negative answer the effort is bigger. This paper describes a procedure that minimises the effort of an expert. We also estimate the effort of this 'optimal' search procedure.

Online publication date: Mon, 22-Dec-2008

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