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Approximating the Shapley Value without Marginal Contributions. (arXiv:2302.00736v5 [cs.LG] UPDATED)
cs.LG updates on arXiv.org arxiv.org
The Shapley value, which is arguably the most popular approach for assigning
a meaningful contribution value to players in a cooperative game, has recently
been used intensively in explainable artificial intelligence. Its
meaningfulness is due to axiomatic properties that only the Shapley value
satisfies, which, however, comes at the expense of an exact computation growing
exponentially with the number of agents. Accordingly, a number of works are
devoted to the efficient approximation of the Shapley value, most of them
revolve …
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