Bounding convex relaxations of process models from below by tractable black-box sampling

Y Song, H Cao, C Mehta, KA Khan - Computers & Chemical Engineering, 2021 - Elsevier
Several chemical engineering applications demand global optimization of nonconvex
process models, including safety verification and determination of thermodynamic equilibria …

Comparison of MINLP formulations for global superstructure optimization

J Burre, D Bongartz, A Mitsos - Optimization and engineering, 2023 - Springer
Superstructure optimization is a powerful but computationally demanding task that can be
used to select the optimal structure among many alternatives within a single optimization. In …

Tighter McCormick relaxations through subgradient propagation

J Najman, A Mitsos - Journal of Global Optimization, 2019 - Springer
Tight convex and concave relaxations are of high importance in deterministic global
optimization. We present a method to tighten relaxations obtained by the McCormick …

Algorithms, analysis and software for the global optimization of two-stage stochastic programs

R Kannan - 2018 - dspace.mit.edu
Optimization models in the chemical process industries often include uncertain model
parameters due to uncertainties in market forces and the environment, use of reduced-order …

Learning to accelerate the global optimization of quadratically-constrained quadratic programs

R Kannan, H Nagarajan, D Deka - arXiv preprint arXiv:2301.00306, 2022 - arxiv.org
We learn optimal instance-specific heuristics for the global minimization of nonconvex
quadratically-constrained quadratic programs (QCQPs). Specifically, we consider …

[PDF][PDF] Deterministic global flowsheet optimization for the design of energy conversion processes

D Bongartz, A Mitsos - 2020 - lirias.kuleuven.be
Die vorliegende Arbeit entstand während meiner Zeit als wissenschaftlicher Mitarbeiter am
Lehrstuhl für Systemverfahrenstechnik (SVT) der RWTH Aachen. Mein Dank gilt zuallererst …

一类局域性资源受限项目调度问题的新0-1 混合线性优化模型

苏志雄, 乞建勋, 邹鑫, 魏汉英, 魏亚锋 - 中国管理科学, 2023 - zgglkx.com
资源受限项目调度问题(简称RCPSP) 是最具代表性且难解的项目调度问题之一,
其经典问题以“资源全局受限” 为特征. 本文从新的视角考虑资源受限的特征 …

[PDF][PDF] Learning to Accelerate Partitioning Algorithms for the Global Optimization of Nonconvex Quadratically-Constrained Quadratic Programs

R Kannan, H Nagarajan, D Deka - Learning, 2022 - rohitkannan.github.io
• Baltean-Lugojan et al.[BLBMT19] use neural networks (NNs) to decide how to construct
cheap outer-approximations of SDP relaxations of QCQPs that retain their strength• Ghaddar …

Norm-optimal iterative learning control in an integer-valued control domain

F Arnold, R King - International Journal of Control, 2023 - Taylor & Francis
Formulating a control design for integer-valued inputs might be advantageous over, for
example, rounding strategies based on a real-valued solution. However, the speed of …

New pseudo polynomial algorithms for a partial resource-constrained project scheduling problem

H Wei, Z Su, J Qi - Journal of Industrial and Management …, 2023 - aimsciences.org
The resource-constrained project scheduling problem (RCPSP) aims to arrange activities to
be processed by limit renewable resources. In real life, not all resources are constrained, nor …