The Shapley Value of Tuples in Query Answering

نویسندگان

چکیده

We investigate the application of Shapley value to quantifying contribution a tuple query answer. The is widely known numerical measure in cooperative game theory and many applications for assessing player coalition game. It has been established already 1950s, theoretically justified by being very single wealth-distribution that satisfies some natural axioms. While this investigated several areas, it received little attention data management. study context conjunctive aggregate queries defining corresponding games. provide algorithmic complexity-theoretic results on computation Shapley-based contributions answers; hard cases we present approximation algorithms.

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ژورنال

عنوان ژورنال: Logical Methods in Computer Science

سال: 2021

ISSN: ['1860-5974']

DOI: https://doi.org/10.46298/lmcs-17(3:22)2021