Abstract: In one embodiment, a device filters data usage metrics regarding a plurality of network nodes by one or more data characteristics, to form filtered metrics. The device applies an anomaly detector to the filtered metrics. The device distinguishes, based on an output of the anomaly detector, abnormal, unusual, and normal data usage among the filtered metrics. The device provides display data to a user interface indicative of the abnormal, unusual, and normal data usage among the filtered metrics.

Abstract: In one embodiment, a device filters data usage metrics regarding a plurality of network nodes by one or more data characteristics, to form filtered metrics. The device applies an anomaly detector to the filtered metrics. The device distinguishes, based on an output of the anomaly detector, abnormal, unusual, and normal data usage among the filtered metrics. The device provides display data to a user interface indicative of the abnormal, unusual, and normal data usage among the filtered metrics.

Abstract: In one embodiment, a method comprises: determining, by a network device, a time gap between first and second wireless sessions by a mobile network device in an identified wireless region of a wireless cellular data network, based on first detecting an abnormal closing of the first wireless session based on a first call data record (CDR) generated based on data from a packet gateway (PGW), and second detecting an opening of the second wireless session consecutively following the first wireless session based on a second CDR generated based on data from the PGW; aggregating time gaps for respective first and second wireless sessions; generating a time-based connection quality score for the identified wireless region based on the time gaps; and causing a second mobile network device destined for the identified wireless region to mitigate against poor connection quality in the identified wireless region based on the time-based connection quality score.

Abstract: In one embodiment, a method comprises: determining, by a network device, a time gap between first and second wireless sessions by a mobile network device in an identified wireless region of a wireless cellular data network, based on first detecting an abnormal closing of the first wireless session based on a first call data record (CDR) generated based on data from a packet gateway (PGW), and second detecting an opening of the second wireless session consecutively following the first wireless session based on a second CDR generated based on data from the PGW; aggregating time gaps for respective first and second wireless sessions; generating a time-based connection quality score for the identified wireless region based on the time gaps; and causing a second mobile network device destined for the identified wireless region to mitigate against poor connection quality in the identified wireless region based on the time-based connection quality score.