Proportional Selection in Networks

Speaker(s)

Tomasz Wąs

Affiliation

University of Oxford

Language of the talk

English

Date

Nov. 6, 2025, noon

Information about the event

seminar online

Seminar

Seminar Algorithmic Economics

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We address the problem of selecting k representative nodes from a network, aiming to simultaneously achieve two objectives: identifying the most influential nodes and ensuring that the selection proportionally reflects the diversity within the network. We propose a general approach to accomplish this by combining ideas from network science and computational social choice. Notably, our algorithms depend only on the connections between nodes and do not utilize any additional information that would explicitly identify groups of nodes. We analyze them theoretically, and demonstrate their effectiveness through a series of experiments.

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