1. A method comprising: receiving a request to determine which fields, of a plurality of fields in a data set, are interdependent; determining different levels of interdependence between different pairs of fields of the plurality of fields at least in part by: for each pair of the different pairs of fields, scaling a divergence score that measures how divergent values are in fields of the pair based at least in part on a maximum divergence score for the fields; in response to the request, identifying a group of fields as interdependent based at least in part on the levels of interdependence; wherein the method is performed by one or more computing devices.