@article{NohadaniSharma, author = {Nohadani, Omid and Sharma, Kartikey}, title = {Optimization under Connected Uncertainty}, series = {INFORMS Journal on Optimization}, volume = {4}, journal = {INFORMS Journal on Optimization}, number = {3}, doi = {10.1287/ijoo.2021.0067}, pages = {326 -- 346}, abstract = {Robust optimization methods have shown practical advantages in a wide range of decision-making applications under uncertainty. Recently, their efficacy has been extended to multiperiod settings. Current approaches model uncertainty either independent of the past or in an implicit fashion by budgeting the aggregate uncertainty. In many applications, however, past realizations directly influence future uncertainties. For this class of problems, we develop a modeling framework that explicitly incorporates this dependence via connected uncertainty sets, whose parameters at each period depend on previous uncertainty realizations. To find optimal here-and-now solutions, we reformulate robust and distributionally robust constraints for popular set structures and demonstrate this modeling framework numerically on broadly applicable knapsack and portfolio-optimization problems.}, language = {en} } @article{KruserSharmaHolletal., author = {Kruser, Jacqueline M. and Sharma, Kartikey and Holl, Jane L. and Nohadani, Omid}, title = {Identifying Patterns of Medical Intervention in Acute Respiratory Failure: A Retrospective Observational Study}, series = {Critical Care Explorations}, volume = {5}, journal = {Critical Care Explorations}, number = {10}, doi = {10.1097/CCE.0000000000000984}, pages = {p e0984}, language = {en} }