~/talk

Synthesizing MILP Constraints for Efficient and Robust Optimization

Talkat PLDI 2023 · 2023-06-17..06-21· [machine-learning]
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name:Chao Wang
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slides:none on file

Proposes a syntax-guided synthesis pipeline that generates MILP encodings from arbitrary Boolean-linear specs, implementing an extensible DSL, iterative decomposition to add decision variables, and over-/under-approximation checks to prune candidates. Prototype uses Lingride and Z3, runs on benchmarks from operations research, ML and Q&A posts, and reports synthesis times of seconds–minutes, DSL strengthening needed for ~70% of problems, and overall solver runtimes roughly matching or improving manual encodings (≈9% median speedup). conx-based splitting reduces relaxation size.

AI-written summary · about

  1. 0:00Paper introduction
  2. 0:22Mixed integer linear programming
  3. 1:57MILP vs SMT solvers
  4. 2:39Linearizing logical constraints
  5. 3:21Synthesizing MILP constraints
  6. 4:25Protein folding example
  7. 5:50Proposed method overview
  8. 6:34DSL variable strengthening
  9. 9:05Pruning synthesis candidates
  10. 9:48Selecting high-quality constraints
  11. 11:35Experimental evaluation
  12. 13:43Summary and contributions
  13. 14:13Q&A
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