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  "Package": "fabisearch",
  "Title": "Change Point Detection in High-Dimensional Time Series Networks",
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  "Authors@R": "c(person(\"Martin\", \"Ondrus\", email = \"mondrus@ualberta.ca\", role = c(\"aut\", \"cre\")), person(\"Ivor\", \"Cribben\", email = \"cribben@ualberta.ca\", role = \"aut\"))",
  "Description": "Implementation of the Factorized Binary Search\n(FaBiSearch) methodology for the estimation of the number and\nthe location of multiple change points in the network (or\nclustering) structure of multivariate high-dimensional time\nseries. The method is motivated by the detection of change\npoints in functional connectivity networks for functional\nmagnetic resonance imaging (fMRI) data. FaBiSearch uses\nnon-negative matrix factorization (NMF), an unsupervised\ndimension reduction technique, and a new binary search\nalgorithm to identify multiple change points.  It requires\nminimal assumptions. Lastly, we provide interactive,\n3-dimensional, brain-specific network visualization capability\nin a flexible, stand-alone function. This function can be\nconveniently used with any node coordinate atlas, and nodes can\nbe color coded according to community membership, if\napplicable. The output is an elegantly displayed network laid\nover a cortical surface, which can be rotated in the\n3-dimensional space. The main routines of the package are\ndetect.cps(), for multiple change point detection, est.net(),\nfor estimating a network between stationary multivariate time\nseries, net.3dplot(), for plotting the estimated functional\nconnectivity networks, and opt.rank(), for finding the optimal\nrank in NMF for a given data set. The functions have been\nextensively tested on simulated multivariate high-dimensional\ntime series data and fMRI data. For details on the FaBiSearch\nmethodology, please see Ondrus et al. (2021)\n<arXiv:2103.06347>. For a more detailed explanation and applied\nexamples of the fabisearch package, please see Ondrus and\nCribben (2022), preprint.",
  "URL": "https://github.com/mondrus96/FaBiSearch",
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