US Patent 8494941 Feature-based similarity measure for market instruments

In one embodiment, first, second, and third inputs are received. The first input specifies a first market instrument and the second input specifies start and end dates of a first time series for the first market instrument. The third input specifies a feature set computer and the values of zero or more parameters thereof. A first feature set of the first market instrument is determined by applying the feature set computer to the first time series. A second feature set of a second market instrument is determined by applying the feature set computer to a second time series for the second market instrument, where the second time series is bounded by the start and end dates. The second feature set is correlated to the first feature set to determine a similarity score for the second market instrument, where the similarity score is a measure of the relationship between the second market instrument and the first market instrument.