I am a second-year Ph.D. student in the Department of Applied Mathematics and Statistics at Johns Hopkins University, advised by Prof. Amitabh Basu. My research interests include integer programming, convex analysis, and discrete geometry.

📝 Preprints

• Sample Complexity of Algorithm Selection Using Neural Networks and Its Applications to Branch-and-Cut

  Hongyu Cheng, Sammy Khalife, Barbara Fiedorowicz, and Amitabh Basu. Preprint, 2024.

• Learning Cut Generating Functions for Integer Programming

  Hongyu Cheng and Amitabh Basu. Preprint, 2024.

📚 Publications

• Neural Networks with Linear Threshold Activations: Structure and Algorithms

  Sammy Khalife, Hongyu Cheng, Amitabh Basu. Mathematical Programming, 2024.

💬 Talks

• Sample Complexity of Learning Cut Generating Functions

  2024 INFORMS Annual Meeting. Seattle, Washington, October 2024.

• A Data-Driven Approach to Cut Generating Function Selection

  25th International Symposium on Mathematical Programming (ISMP). Montreal, Canada, July 2024.

📖 Teaching

Johns Hopkins University

• EN.553.665 Introduction to Convexity (Fall 2022, 2023, 2024, Spring 2024). Recitation notes.
• EN.553.766 Combinatorial Optimization (Spring 2023)
• EN.553.762 Nonlinear Optimization II (Spring 2023)
• EN.553.385 Numerical Linear Algebra (Spring 2022)

🎖 Honors and Awards

• Duncan Research Fund, Summer 2024

• JHU MINDS Data Science Fellowship, Summer 2024