An event clustering system includes an extraction engine in communication with a managed infrastructure. A sigalizer engine that includes one or more of an NMF engine, a k-means clustering engine and a topology proximity engine. The sigalizer engine determines one or more common characteristics or features from events that includes one or more event parameters. The sigalizer engine uses the common features of events to produce clusters of events relating to the failure or errors in the managed infrastructure. Membership in a cluster indicates a common factor of the events that is a failure or an actionable problem in the physical hardware managed infrastructure directed to supporting the flow and processing of information. Each of an event parameter is converted into a numerical representation.