I work at AlibabaíŽs . Previously, I was a postdoctoral associate working with at MITíŽs . In 2017, I finished my Ph.D. in Operations Research under the supervision of at Columbia University.
íP E-commerce Applications, Healthcare Operations, Supply-chain Management.
íP Approximation and Online Algorithms, Stochastic Modeling and Optimization.
íP The Lingering of Gradients:
How to Reuse Gradients over Time.
with Zeyuan Allen-Zhu and David Simchi-Levi.
(A short version appeared in NIPS 2018)
íP Inventory Balancing with
with Wang Chi Cheung, Will Ma and David Simchi-Levi.
Papers under Review/Revision
íP Prophet Inequality with
Correlated Arrival Probabilities, with Application to Two Sided Matchings. 
with Van-Anh Truong.
íP Dynamic Optimization of
Mobile Push Advertising Campaigns. 
with Van-Anh Truong, Shenghuo Zhu and Qiong Zhang.
íP Advance Service
Reservations with Heterogeneous Customers. 
with Clifford Stein and Van-Anh Truong.
(minor revision in Management Science)
íP Approximation Algorithms
for Product Framing and Pricing. 
with Guillermo Gallego, Anran Li and Van-Anh Truong.
(minor revision in Operations Research)
íP Online Advance Admission
Scheduling for Services, with Customer Preferences. 
with David Bank and Van-Anh Truong.
íP Integrated Scheduling and
Capacity Planning with Considerations for PatientsíŽ Length-of-Stays.
with Brett Anderson, Nan Liu and Van-Anh Truong.
(minor revision in Production and Operations Management)
Published and Accepted Journal Papers
íP Wang, Xinshang, Van-Anh Truong. 2018. Multi-priority online scheduling with cancellations. Operations Research 66(1) 104-122. 
íP Levi, Retsef, Robin Roundy, Van Anh Truong, Xinshang Wang. 2017. Provably near-optimal balancing policies for multi-echelon stochastic inventory control models. Mathematics of Operations Research 42(1) 256-276.