dantzig-wolfe

Code and data for "Do Language Models Know Which Constraints Belong Together?": zero-marginal groups in Dantzig-Wolfe reformulation, the JointDW search, and the experiments on MIPLIB-NL, rich models and benchmark instances.

Column generation for minimum-cost multicommodity flow with path- and tree-based Dantzig-Wolfe decompositions

Research code for integrated railroad blocking: DG-CGM matheuristics, ARC/DW benchmarks, 190 instances, and reproducible experiments.

Log-driven LLM tuning of SCIP for mixed-integer optimization, with solver-log analysis, scalar-feedback baselines, and a reproducible 215-instance benchmark.