Machine learning methods for constructing probabilistic Fermi-LAT catalogs

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Fig. 1.

Correlation matrix of features for the associated sources in the 3FGL catalog. The 500MeV_Index is defined in Eq. (3). The hardness ratios (HR12, HR23, etc.) are defined in Eq. (2). All other features are taken directly from the 3FGL catalog (see text for the description of labels).

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