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Fast Algorithms for Stackelberg Prediction Game with Least Squares Loss

ICML 2021 · Learning theory and algorithms › Combinatorial and search optimization · approach: Decision-focused optimization · 1 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
reformulate SPG-LS as a single SDP instead of bisection over many SDPsSPG-LS · synthetic regression (m=2n, n=1000)wall-clock time: 988.675 s to 45.984 sHelped
reduce single SDP to SOCP via congruence transformations and generalized Schur complement (ablation)single SDP reformulation · synthetic regression (m=2n, n=2000)wall-clock time: 438.487 s to 0.536 sHelped
reduce single SDP to SOCP (ablation)single SDP reformulation · blog datasetwall-clock time vs single SDP: SOCP takes about 1/50 the time of single SDPHelped
SOCP reformulation vs bisectionSPG-LS · synthetic regression, up to (m,n)=(1000,2000)speedup over bisection: up to 20,000+ times fasterHelped
single SDP reformulation vs bisectionSPG-LS · blog datasetwall-clock time: single SDP takes about 1/20 the time of bisectionHelped
SOCP and single SDP achieve best average MSE vs bisection and ridge regressionSPG-LS · red wine and blog datasets (10-fold CV)average MSENo clear effect

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