14. A system comprising: a processor; a module configured to control the processor to conduct a dialog exchange between an automated dialog system and a user, the dialog exchange including at least two dialog system prompts and two user input opportunities; and a module configured to determine whether a probability threshold is exceeded that relates to a prediction that continuing the dialog exchange with the user will converge and succeed to a stage consistent with the user's intent or diverge and fail, wherein determining whether the probability threshold is exceeded is based, at least in part, training data on multiple dialog turns in a corpus of dialogs tagged for success or failure after at least two dialog prompts and two user inputs.
14. A system comprising: a processor; a module configured to control the processor to conduct a dialog exchange between an automated dialog system and a user, the dialog exchange including at least two dialog system prompts and two user input opportunities; and a module configured to determine whether a probability threshold is exceeded that relates to a prediction that continuing the dialog exchange with the user will converge and succeed to a stage consistent with the user's intent or diverge and fail, wherein determining whether the probability threshold is exceeded is based, at least in part, training data on multiple dialog turns in a corpus of dialogs tagged for success or failure after at least two dialog prompts and two user inputs. 17. The system of claim 14 , wherein if the probability threshold is succeeded, further dialog is conducted with the user.