Publications & Pre-Prints

2026

1. RL & Post-Training

   

   GOPO: Policy Optimization using Ranked Rewards

   Dwaipayan Saha^*, Kyuseong Choi^*, Woojeong Kim^* , and 2 more authors

   In Submission, 2026

   arXiv Bib

   @article{choi2026gopopolicyoptimizationusing,
     title = {GOPO: Policy Optimization using Ranked Rewards},
     author = {Saha, Dwaipayan and Choi, Kyuseong and Kim, Woojeong and Agarwal, Anish and Dwivedi, Raaz},
     year = {2026},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     journal = {In Submission},
   }

2. Kernels & ML

   

   Manifold Random Features

   Dwaipayan Saha^*, Ananya Parashar^*, Derek Long^* , and 1 more author

   In Submission, 2026

   arXiv Bib

   @article{parashar2026manifoldrandomfeatures,
     title = {Manifold Random Features},
     author = {Saha, Dwaipayan and Parashar, Ananya and Long, Derek and Choromanski, Krzysztof},
     year = {2026},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     journal = {In Submission},
   }

2025

1. Foundation Models

   

   TabImpute: Accurate and Fast Zero-Shot Missing-Data Imputation with a Pre-Trained Transformer

   Jacob Feitelberg, Dwaipayan Saha, Kyuseong Choi , and 3 more authors

   AI for Tabular Data Workshop @ EurIPS, 2025

   arXiv Bib

   @article{feitelberg2025tabimputeaccuratefastzeroshot,
     title = {TabImpute: Accurate and Fast Zero-Shot Missing-Data Imputation with a Pre-Trained Transformer},
     author = {Feitelberg, Jacob and Saha, Dwaipayan and Choi, Kyuseong and Ahmad, Zaid and Agarwal, Anish and Dwivedi, Raaz},
     year = {2025},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     journal = {AI for Tabular Data Workshop @ EurIPS},
   }

2. Stat & CI

   

   Synthetic Blips: Generalizing Synthetic Controls for Dynamic Treatment Effects+

   Anish Agarwal, Sukjin Han, Dwaipayan Saha , and 2 more authors

   2025

   arXiv Bib

   @article{agarwal2025syntheticblipsgeneralizingsynthetic,
     title = {Synthetic Blips: Generalizing Synthetic Controls for Dynamic Treatment Effects+},
     author = {Agarwal, Anish and Han, Sukjin and Saha, Dwaipayan and Syrgkanis, Vasilis and Yoon, Haeyeon},
     year = {2025},
     archiveprefix = {arXiv},
     primaryclass = {econ.EM},
   }

2023

1. TCS & GT

   Prophet Inequalities for Subadditive Combinatorial Auctions

   Dwaipayan Saha^*, and Ananya Parashar^*

   2023

   arXiv Bib

   @article{saha2023prophet,
     title = {Prophet Inequalities for Subadditive Combinatorial Auctions},
     author = {Saha, Dwaipayan and Parashar, Ananya},
     year = {2023},
     archiveprefix = {arXiv},
     primaryclass = {cs.GT},
   }