• (Invitied) When the model is no longer trustworthy: a distribution-free optimization approach, National Taiwan University,Taiwan, September 2011. link
  • (InvitedPortfolio selection under model uncertainty : a penalized moment-based optimization approach  [ 1st Place in the CORS Paper Competition ] CORS 2011 Saint John's, Canada 
  • Market Price-Based Convex Risk Measures: A Distribution-Free Optimization Approach, Optimization Days 2011, Montréal (Québec) Canada 
  • (InvitedRobust Portfolio Selection with Adjustable Ambiguity Aversion, INFORMS 2010, Austin, Texas, USA  
  • A Semidefinite Approach for Robust Option Pricing Bounds
    , ISMP 2009, Chicago, USA.
  • (InvitedFace Lattice Computation Under Symmetry, CORS-INFORMS 2009, Toronto, Canada.