16. The data processing system of claim 15, which further comprises: said first processor means coupled to said second processor means, for receiving said new value for said adaptive probability weighting factor and computing a recognition means choice confidence factor in said data processing system, as a product of said character form confidence factor, said field type confidence factor, and said new value for said adaptive probability weighting factor, times a difference between said first confidence value and said second confidence value.
17. The data processing system of claim 16, which further comprises: a manual monitoring and correcting station in said data processing system, which houses said accumulator means and second processor means; display means in said manual station, coupled to said selection means, for presenting said document image and said first guess character to an operator; and input means in said manual station for receiving a corrected character from said operator, to substitute for said first guess character.