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- W4297881966 abstract "We introduce Graphical TREX (GTREX), a novel method for graph estimation in high-dimensional Gaussian graphical models. By conducting neighborhood selection with TREX, GTREX avoids tuning parameters and is adaptive to the graph topology. We compare GTREX with standard methods on a new simulation set-up that is designed to assess accurately the strengths and shortcomings of different methods. These simulations show that a neighborhood selection scheme based on Lasso and an optimal (in practice unknown) tuning parameter outperforms other standard methods over a large spectrum of scenarios. Moreover, we show that GTREX can rival this scheme and, therefore, can provide competitive graph estimation without the need for tuning parameter calibration." @default.
- W4297881966 created "2022-10-01" @default.
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- W4297881966 date "2014-10-27" @default.
- W4297881966 modified "2023-10-18" @default.
- W4297881966 title "Topology Adaptive Graph Estimation in High Dimensions" @default.
- W4297881966 doi "https://doi.org/10.48550/arxiv.1410.7279" @default.
- W4297881966 hasPublicationYear "2014" @default.
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