Methods, systems, apparatuses, and computer program products are provided for reconstructing network activity. A network activity monitor is configured to monitor network activity for various network entities. Based on the monitoring, a set of features may be obtained for each network entity. A determination may be made for a number of vertices suitable for describing the sets of features in a multidimensional space. In some implementations, the vertices may define a convex hull in the multidimensional space. Each of the vertices may be assigned a different usage pattern that represents a certain type of network usage types. Reconstructed network activity for a particular network entity may be represented as a weighted combination of the usage patterns. Based on the reconstruction, a network anomaly may be detected, a network may be modified, and/or an alert may be generated.
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