arXiv Machine Learning

ENFORCE: Nonlinear Constrained Learning with Adaptive-depth Neural Projection

arXiv Machine Learning
Sep 23

CAffNet: Hard Constraint-Affine Neural Networks

arXiv:2605.24437v2 Announce Type: replace Abstract: We present a novel framework for embedding hard constraint satisfaction into neural network (NN) architectures, specifically feedforward neural net...

By Yang Zhao, Jungeun Lee, Jeong hwan Jeon, Sze Zheng Yong
arXiv Machine Learning
Oct 3

HUANet: Hard-Constrained Unrolled ADMM for Constrained Convex Optimization

HUANet is a deep neural network architecture that unrolls the Alternating Direction Method of Multipliers (ADMM) into a trainable model for accelerating parametric constrained convex optimization. It embeds a hard‑constrained neural network in each ADMM iteration, using a differentiable correction stage to enforce affine equalities of the primal subproblem. The method also incorporates first‑order optimality conditions into a self‑supervised training loss, and numerical experiments on benchmark problems and a control application demonstrate its effectiveness in speeding up constrained convex optimization.

By Trinh Tran, Binh Nguyen, Truong X. Nghiem
arXiv Machine Learning
Oct 28

Constraint Learning by Optimizing over Trained Neural Networks: A Pragmatic Tutorial

The article "Constraint Learning by Optimizing over Trained Neural Networks: A Pragmatic Tutorial" discusses the emerging paradigm of embedding trained machine learning models, particularly neural networks, into optimization problems. It explains how constraints can be learned from data or objectives approximated to simplify models, while addressing challenges of size and speed. The tutorial offers practical guidance and demonstrates benefits through a case study that shows smaller, sparser networks can improve efficiency.

By Jiaxiao Fang, Thiago Serra
arXiv Machine Learning
Jun 15

Neural Slack Variables for Shape Constraints

arXiv:2606. 13803v1 Announce Type: new Abstract: Enforcing functional inequality constraints such as monotonicity and convexity in neural networks is a fundamental challenge in many industrial and scientific applications.

By Ruben Wiedemann, Antoine Jacquier, Lukas Gonon
arXiv AI
Oct 15

Constraint-Aware Influence Estimation in Deep Constrained Learning

The paper introduces the Directional Influence Function (DIF), a new estimator for measuring how training samples affect the solution of constrained learning problems. DIF incorporates constraints directly by formulating optimality conditions as a variational inequality, thereby avoiding the bias seen in classical influence functions. Experiments on constrained linear regression and fairness‑constrained CNNs show that DIF accurately predicts changes in test loss and aligns closely with actual retraining results.

By Xin Wang (Jeff), R. Tyrrell Rockafellar (Jeff), Xuegang (Jeff), Ban