Compressing network populations with modal networks reveal structural diversity
Abstract Analyzing relational data consisting of multiple samples or layers involves critical challenges: How many networks are required to capture the variety of structures in the data? And what are the structures of these representative networks? We describe efficient nonparametric methods derived...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-06-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-023-01270-5 |
| _version_ | 1797795669564456960 |
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| author | Alec Kirkley Alexis Rojas Martin Rosvall Jean-Gabriel Young |
| author_facet | Alec Kirkley Alexis Rojas Martin Rosvall Jean-Gabriel Young |
| author_sort | Alec Kirkley |
| collection | DOAJ |
| description | Abstract Analyzing relational data consisting of multiple samples or layers involves critical challenges: How many networks are required to capture the variety of structures in the data? And what are the structures of these representative networks? We describe efficient nonparametric methods derived from the minimum description length principle to construct the network representations automatically. The methods input a population of networks or a multilayer network measured on a fixed set of nodes and output a small set of representative networks together with an assignment of each network sample or layer to one of the representative networks. We identify the representative networks and assign network samples to them with an efficient Monte Carlo scheme that minimizes our description length objective. For temporally ordered networks, we use a polynomial time dynamic programming approach that restricts the clusters of network layers to be temporally contiguous. These methods recover planted heterogeneity in synthetic network populations and identify essential structural heterogeneities in global trade and fossil record networks. Our methods are principled, scalable, parameter-free, and accommodate a wide range of data, providing a unified lens for exploratory analyses and preprocessing large sets of network samples. |
| first_indexed | 2024-03-13T03:21:30Z |
| format | Article |
| id | doaj.art-bb24eb7b820c400cb527508963dd9b2b |
| institution | Directory Open Access Journal |
| issn | 2399-3650 |
| language | English |
| last_indexed | 2024-03-13T03:21:30Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj.art-bb24eb7b820c400cb527508963dd9b2b2023-06-25T11:19:28ZengNature PortfolioCommunications Physics2399-36502023-06-016111010.1038/s42005-023-01270-5Compressing network populations with modal networks reveal structural diversityAlec Kirkley0Alexis Rojas1Martin Rosvall2Jean-Gabriel Young3Institute of Data Science, University of Hong KongDepartment of Computer Science, University of HelsinkiIntegrated Science Lab, Department of Physics, Umea UniversityDepartment of Mathematics and Statistics, University of VermontAbstract Analyzing relational data consisting of multiple samples or layers involves critical challenges: How many networks are required to capture the variety of structures in the data? And what are the structures of these representative networks? We describe efficient nonparametric methods derived from the minimum description length principle to construct the network representations automatically. The methods input a population of networks or a multilayer network measured on a fixed set of nodes and output a small set of representative networks together with an assignment of each network sample or layer to one of the representative networks. We identify the representative networks and assign network samples to them with an efficient Monte Carlo scheme that minimizes our description length objective. For temporally ordered networks, we use a polynomial time dynamic programming approach that restricts the clusters of network layers to be temporally contiguous. These methods recover planted heterogeneity in synthetic network populations and identify essential structural heterogeneities in global trade and fossil record networks. Our methods are principled, scalable, parameter-free, and accommodate a wide range of data, providing a unified lens for exploratory analyses and preprocessing large sets of network samples.https://doi.org/10.1038/s42005-023-01270-5 |
| spellingShingle | Alec Kirkley Alexis Rojas Martin Rosvall Jean-Gabriel Young Compressing network populations with modal networks reveal structural diversity Communications Physics |
| title | Compressing network populations with modal networks reveal structural diversity |
| title_full | Compressing network populations with modal networks reveal structural diversity |
| title_fullStr | Compressing network populations with modal networks reveal structural diversity |
| title_full_unstemmed | Compressing network populations with modal networks reveal structural diversity |
| title_short | Compressing network populations with modal networks reveal structural diversity |
| title_sort | compressing network populations with modal networks reveal structural diversity |
| url | https://doi.org/10.1038/s42005-023-01270-5 |
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