Matchset-based automatic root cause analysis including determining a first fault scenario is to be subsumed by a second fault scenario

摘要

A set of observed symptoms of a physical system is received. The set of observed symptoms is matched with a database of fault scenarios to generate a plurality of matched fault scenarios, wherein the database of fault scenarios comprises combinations of symptoms and corresponding root cause identifiers. The plurality of matched fault scenarios are refined. It is determined whether a first fault scenario of the plurality of matched fault scenarios is to be subsumed by a second fault scenario. In response to a determination that the first fault scenario of the plurality of matched fault scenarios is to be subsumed by a second fault scenario, the second fault scenario is included in the plurality of matched fault scenarios, the first fault scenario is deprioritized, or both. The plurality of matched fault scenarios as potential root causes is output.