Complexity of Computing the Shapley Value in Games with Externalities

Authors: Oskar Skibski2244-2251

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Reproducibility Variable Result LLM Response
Research Type Theoretical In this paper, we fill a gap in the literature by determining what is the complexity of computing all the five extensions of the Shapley value in games represented as embedded and weighted MC-nets. Specifically, we show that only two out of five extensions can be computed in polynomial time for embedded MC-nets and only one can be computed in polynomial time for weighted MC-nets (unless P = NP). For all other values we show that computation is #P-complete (see Table 1). Interestingly, our results are strongly based on graph theory techniques.
Researcher Affiliation Academia Oskar Skibski Institute of Informatics, University of Warsaw, Poland oskar.skibski@mimuw.edu.pl
Pseudocode No The paper describes algorithmic approaches (e.g., dynamic programming) but does not include structured pseudocode or algorithm blocks.
Open Source Code No The paper does not mention releasing open-source code for the described methodology.
Open Datasets No This is a theoretical paper and does not use datasets for training.
Dataset Splits No This is a theoretical paper and does not discuss data splits for validation.
Hardware Specification No This is a theoretical paper and does not mention any hardware specifications used for experiments.
Software Dependencies No This is a theoretical paper and does not mention any specific software dependencies with version numbers.
Experiment Setup No This is a theoretical paper and does not describe an experimental setup with hyperparameters or training settings.