Results 11 to 20 of about 513,249 (211)
A null model for microbial diversification [PDF]
Proceedings of the National Academy of Sciences, 2017 Significance When evolutionary histories of closely related microorganisms are reconstructed, the lineages often cluster into visibly recognizable groups. However, we do not know if these clusters represent fundamental units of bacterial diversity, such as “species,” nor do we know the nature of evolutionary and ecological forces that
Timothy J. Straub, Olga Zhaxybayeva
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A null model for Pearson coexpression networks [PDF]
PLOS ONE, 2013 Abstract Gene coexpression networks inferred by correlation from high-throughput profiling such as microarray data represent a simple but effective technique for discovering and interpreting linear gene relationships. In the last years several approach have been proposed to tackle the problem of deciding when the resulting correlation ...
Gobbi, Andrea, Jurman, Giuseppe
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Null Model and Community Structure in Multiplex Networks [PDF]
Scientific Reports, 2018 AbstractThe multiple relationships among objects in complex systems can be described well by multiplex networks, which contain rich information of the connections between objects. The null model of networks, which can be used to quantify the specific nature of a network, is a powerful tool for analysing the structural characteristics of complex systems.
Zhai, Xuemeng +7 more
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A null model for Dunbar’s circles [PDF]
Physica A: Statistical Mechanics and its Applications, 2020 7 pages, 2 figures, 1 ...
Jiménez-Martín, Manuel +3 more
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Hyper-Null Models and Their Applications
Entropy, 2023 Null models are crucial tools for investigating network topological structures. However, research on null models for higher-order networks is still relatively scarce. In this study, we introduce an innovative method to construct null models for hypergraphs, namely the hyperedge swapping-based method.
Yujie Zeng +3 more
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Null Models for Formal Contexts [PDF]
Information, 2020 Null model generation for formal contexts is an important task in the realm of formal concept analysis. These random models are in particular useful for, but not limited to, comparing the performance of algorithms. Nonetheless, a thorough investigation of how to generate null models for formal contexts is absent.
Maximilian Felde +2 more
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A matrix model for the null-brane [PDF]
Journal of High Energy Physics, 2006 26 pages, LaTeX; references ...
Robbins, Daniel, Sethi, Savdeep
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The “Null-A” superintegrability for monomial matrix models
Annals of Physics, 2023 We find that superintegrability (character expansion) property persists in the exotic sector of the monomial non-Gaussian matrix model, with potential $\Tr X^r$, in pure phase, where the naive partition function $\langle 1 \rangle$ vanishes. The role of the (anomaly-corrected) partition function is played by $\left\langleχ_ρ\right\rangle$ -- the Schur ...
Barseghyan, S., Popolitov, A.
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A niche for null models in adaptive resource management [PDF]
Ecology and Evolution, 2022 AbstractAs global systems rapidly change, our collective ability to predict future ecological dynamics will become increasingly important for successful natural resource management. By merging stakeholder objectives with system uncertainty, and by adapting actions to changing systems and knowledge, adaptive resource management (ARM) provides a rigorous
David N. Koons +6 more
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Null models for gene enrichment in plasmids [PDF]
Proceedings of the National Academy of Sciences, 2021 The recent article by Che et al. (1) presents an analysis of a dataset of 14,029 plasmids. I enjoyed the paper but have some concerns about its analysis. While it is clear that more conjugative plasmids carry antimicrobial resistance (AMR) genes, it is unclear whether this is simply because conjugative plasmids tend to carry more genes in general ...
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