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Nov 7, 2017 at 18:24 comment added HEITZ ID variables that identify a particular training example should never be used as predictors.
Nov 7, 2017 at 14:04 comment added hm6 many phone numbers and account numbers do not have a one to one relationship instead they are connected and form networks. the shape and changes in a network can be a signal to fraud. However, without IDs model can not understand their connectivity.
Nov 6, 2017 at 23:48 history answered HEITZ CC BY-SA 3.0