Measuring Intrinsic Quality of Human Decisions

Tamal T. Biswas


Research on judging decisions made by fallible (human) agents is not as much advanced as research on finding optimal decisions, and on supervision of AI agents´ decisions by humans. Human decisions are often influenced by various factors, such as risk, uncertainty, time pressure, and depth of cognitive capability, whereas decisions by an AI agent can be effectively optimal without these limitations. The concept of `depth´, a well-defined term in game theory (including chess), does not have a clear formulation in decision theory. To quantify ´depth´ in decision theory, we can configure an AI agent of supreme competence to `think´ at depths beyond the capability of any human, and in the process collect evaluations of decisions at various depths. One research goal is to create an intrinsic measure of the depth of thinking required to answer certain test questions, toward a reliable means of assessing their difficulty apart from item-response statistics. We relate the depth of cognition by humans to depths of search, and use this information to infer the quality of decisions made, so as to judge the decision-maker from his decisions. Our research extends the model of Regan and Haworth to quantify depth, plus related measures of complexity and difficulty, in the context of chess. We use large data from real chess tournaments and evaluations from chess programs (AI agents) of strength beyond all human players. We then seek to transfer the results to other decision-making fields in which effectively optimal judgements can be obtained from either hindsight, answer banks, or powerful AI agents. In some applications, such as multiple-choice tests, we establish an isomorphism of the underlying mathematical quantities, which induces a correspondence between various measurement theories and the chess model. We provide results toward the objective of applying the correspondence in reverse to obtain and quantify measure of depth and difficulty for multiple-choice tests, stock market trading, and other real-world applications.


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Paper Citation

in Harvard Style

T. Biswas T. (2015). Measuring Intrinsic Quality of Human Decisions . In Doctoral Consortium - DCAART, (ICAART 2015) ISBN , pages 40-51

in Bibtex Style

author={Tamal T. Biswas},
title={Measuring Intrinsic Quality of Human Decisions},
booktitle={Doctoral Consortium - DCAART, (ICAART 2015)},

in EndNote Style

JO - Doctoral Consortium - DCAART, (ICAART 2015)
TI - Measuring Intrinsic Quality of Human Decisions
SN -
AU - T. Biswas T.
PY - 2015
SP - 40
EP - 51
DO -