サージェントインタビューでロバスト制御理論の研究について語った部分の締め括り。 Evans and Honkapohja: Parts of your description of robustness remind us of calibration. Are there connections? Sargent: I believe there are, but they are yet to be fully exploited. Robust versions of dynamic estimation problems have been formulated. In these problems, the decision maker does not use standard maximum likelihood estimators for his approximatin