# What is heavy hitter analysis?

I have some data on the number of times each of my machines turned off (due to an error) in a particular time period. There are about 6 different classes of machines being used to construct a total population of 50 machines. I wanted to analyze the stability of the 6 classes of machine relative to each other.

An acquaintance suggested that I could do some heavy-hitter analysis during a brief chat to determine if some machines are shutting down more than others. Can someone tell me how to systematically perform this analysis or if there is a formal name for this kind of analysis?

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I've never heard of this before, but perhaps this presentation will be of some help. "Frequent item analysis" seems to be the formal name. –  Matt Parker Jun 11 '11 at 19:10

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