MATria: a unified centrality algorithm

Autor: Trevor Cickovski, Vanessa Aguiar-Pulido, Giri Narasimhan
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: BMC Bioinformatics, Vol 20, Iss S11, Pp 1-9 (2019)
Druh dokumentu: article
ISSN: 1471-2105
DOI: 10.1186/s12859-019-2820-7
Popis: Abstract Background Computing centrality is a foundational concept in social networking that involves finding the most “central” or important nodes. In some biological networks defining importance is difficult, which then creates challenges in finding an appropriate centrality algorithm. Results We instead generalize the results of any k centrality algorithms through our iterative algorithm MATRIA, producing a single ranked and unified set of central nodes. Through tests on three biological networks, we demonstrate evident and balanced correlations with the results of these k algorithms. We also improve its speed through GPU parallelism. Conclusions Our results show iteration to be a powerful technique that can eliminate spatial bias among central nodes, increasing the level of agreement between algorithms with various importance definitions. GPU parallelism improves speed and makes iteration a tractable problem for larger networks.
Databáze: Directory of Open Access Journals
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