1. An event analysis method, comprising: identifying sequences of one or more events based on event records ( 20 ) describing the events; determining respective distance values representing distances between ones of the sequences, wherein the determining comprises determining a respective distance value for each of one or more pairs of the sequences based on comparisons between constituent events of the respective sequences of the pair; constructing a configuration of points in a target metric space based on the distance values, wherein each of the points represents a respective one of the sequences; and presenting a visual representation of the configuration on a display.