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1 Janelia Publications

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    Zlatic LabCardona Lab
    05/09/17 | Semiparametric spectral modeling of the Drosophila connectome.
    Priebe CE, Park Y, Tang M, Athreya A, Lyzinski V, Vogelstein JT, Qin Y, Cocanougher B, Eichler K, Zlatic M, Cardona A
    arXiv. 2017 May 9:1705.03297

    We present semiparametric spectral modeling of the complete larval Drosophila mushroom body connectome. Motivated by a thorough exploratory data analysis of the network via Gaussian mixture modeling (GMM) in the adjacency spectral embedding (ASE) representation space, we introduce the latent structure model (LSM) for network modeling and inference. LSM is a generalization of the stochastic block model (SBM) and a special case of the random dot product graph (RDPG) latent position model, and is amenable to semiparametric GMM in the ASE representation space. The resulting connectome code derived via semiparametric GMM composed with ASE captures latent connectome structure and elucidates biologically relevant neuronal properties.

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