1. A normalization system, comprising: a processor; a memory communicatively coupled to the processor, the memory having stored therein computer-executable instructions to implement the system, including: an interface component that processes questions posed by users, the questions corresponding to a heterogeneous knowledge base; a dialog component that requests users to reformulate questions based upon a cost-benefit analysis; a normalization component that applies a utility model that predicts accuracy results to provide a regularized understanding of the knowledge base based on at least one of the processed questions or the reformulated questions; and an answer composer component that employs the predicted accuracy of results to generate answers to the processed questions.