Identification of core sub-team on scientific collaboration networks with Shapley method

Identifying the core sub-teams that drive productivity in scientific collaboration networks is essential for research evaluation and team management. However, existing methods typically rank individual researchers by bibliometric impact or select structurally cohesive clusters, but rarely account fo...

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Main Authors: Lixin Zhou, Chen Liu, Xue Song
Format: Article
Language:English
Published: PeerJ Inc. 2025-07-01
Series:PeerJ Computer Science
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Online Access:https://peerj.com/articles/cs-3048.pdf
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author Lixin Zhou
Chen Liu
Xue Song
author_facet Lixin Zhou
Chen Liu
Xue Song
author_sort Lixin Zhou
collection DOAJ
description Identifying the core sub-teams that drive productivity in scientific collaboration networks is essential for research evaluation and team management. However, existing methods typically rank individual researchers by bibliometric impact or select structurally cohesive clusters, but rarely account for both collaboration patterns and joint scientific output. To address this limitation, we propose a novel two-dimensional framework that integrates network topology with research performance to identify core sub-teams. Specifically, we measure each sub-team’s marginal structural contribution using the Shapley value and quantify its collective impact using a sub-team H-index. To efficiently identify high-contributing sub-teams, we employ the Monte Carlo Tree Search algorithm, along with an approximation strategy to estimate Shapley values under computational constraints. We evaluate our method on 61 real-world scientific collaboration teams from Web of Science and Baidu Scholar data. Experimental results validate the effectiveness of our method in identifying core sub-teams, with the highest collaborative and citation impact. The proposed method offers a valuable analytical tool for research managers and funding agencies seeking to locate high-impact collaborative clusters, and it provides a generalizable framework for studies requiring the integration of structural and performance-based indicators in network analysis.
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spelling doaj-art-ceadec0cf4804881a4199ff3dfbcbb642025-08-20T03:58:49ZengPeerJ Inc.PeerJ Computer Science2376-59922025-07-0111e304810.7717/peerj-cs.3048Identification of core sub-team on scientific collaboration networks with Shapley methodLixin Zhou0Chen Liu1Xue Song2School of Intelligent Emergency Management, University of Shanghai for Science and Technology, Shanghai, ChinaSchool of Intelligent Emergency Management, University of Shanghai for Science and Technology, Shanghai, ChinaBusiness School, University of Shanghai for Science and Technology, Shanghai, ChinaIdentifying the core sub-teams that drive productivity in scientific collaboration networks is essential for research evaluation and team management. However, existing methods typically rank individual researchers by bibliometric impact or select structurally cohesive clusters, but rarely account for both collaboration patterns and joint scientific output. To address this limitation, we propose a novel two-dimensional framework that integrates network topology with research performance to identify core sub-teams. Specifically, we measure each sub-team’s marginal structural contribution using the Shapley value and quantify its collective impact using a sub-team H-index. To efficiently identify high-contributing sub-teams, we employ the Monte Carlo Tree Search algorithm, along with an approximation strategy to estimate Shapley values under computational constraints. We evaluate our method on 61 real-world scientific collaboration teams from Web of Science and Baidu Scholar data. Experimental results validate the effectiveness of our method in identifying core sub-teams, with the highest collaborative and citation impact. The proposed method offers a valuable analytical tool for research managers and funding agencies seeking to locate high-impact collaborative clusters, and it provides a generalizable framework for studies requiring the integration of structural and performance-based indicators in network analysis.https://peerj.com/articles/cs-3048.pdfScientific collaboration networksShapley value analysisCore sub-teamMCTS
spellingShingle Lixin Zhou
Chen Liu
Xue Song
Identification of core sub-team on scientific collaboration networks with Shapley method
PeerJ Computer Science
Scientific collaboration networks
Shapley value analysis
Core sub-team
MCTS
title Identification of core sub-team on scientific collaboration networks with Shapley method
title_full Identification of core sub-team on scientific collaboration networks with Shapley method
title_fullStr Identification of core sub-team on scientific collaboration networks with Shapley method
title_full_unstemmed Identification of core sub-team on scientific collaboration networks with Shapley method
title_short Identification of core sub-team on scientific collaboration networks with Shapley method
title_sort identification of core sub team on scientific collaboration networks with shapley method
topic Scientific collaboration networks
Shapley value analysis
Core sub-team
MCTS
url https://peerj.com/articles/cs-3048.pdf
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AT chenliu identificationofcoresubteamonscientificcollaborationnetworkswithshapleymethod
AT xuesong identificationofcoresubteamonscientificcollaborationnetworkswithshapleymethod