Riverbed Technology, Inc.

Erez Shalom Armoza

Nicole Andree M Shoblom

Karthikeyan Thennamanallur Ponnusamy

Robyn A Zamora

Christopher O'Malley

A set of devices may be monitored and a subset of the set of devices which is experiencing a problem may be determined. A cardinality of the subset of the set of devices may be divided by a cardinality of the set of devices to obtain a ratio. An expected distribution over a set of attribute values may be determined by multiplying the ratio with a count of devices corresponding to each attribute value. An observed distribution over the set of attribute values may be determined by counting devices which are experiencing the problem corresponding to each attribute value. A probability value may be determined which represents a probability that the expected distribution matches the observed distribution. A report may be generated which includes attributes and the associated probability values, where an attribute is included in the report if the corresponding probability is less than a threshold.

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Espinhal, Portugal

Erez Shalom Armoza