Research

Recent awards

• Howard Rosenbrock Prize, for best paper in Optimization and Engineering in 2021.
• Best paper at CPAIOR 2021.
• Winner of COIN-OR Cup 2018.

 

Research projects and topics

• C3.AI.DTI project "AI techniques for power systems under cyberattacks". (Co-PI, my part 2M SEK). 

Collaboration between KTH, UC Berkely, Caltech, EPRI. My part of the project focuses on mixed-integer optimization techniques for AI systems.  

• Autonomous coordination and control of smart converters for sustainable power systems. (PI, Digital Futures, 2M SEK )

• Mixed-Integer optimization for machine learning and artificial intelligence.  

• Decomposition techniques for mixed-integer nonlinear optimization.   

• Strong convex relaxations.

• Strong and comptationally efficient mixed-integer formulations of disjunctive programs.

• SHOT solver (open source softwate for nonlinear mixed-integer optimization). Collaboration with Åbo Akademi University Finland and GAMS Software GmbH Germany.

 

Recorded presentations 

1. Between steps: Intermediate relaxations between big-M and convex hull formulations 

• Paper (Best paper award)       
• CPAIOR 2021 presentation 
• Presentation slides (cpaior_2021_kronqvist.pdf)          

           2. Disjunctive cut strengthening for convex mixed-integer optimization

• Full paper  (Best paper award)     
• Presentation
• Presentation slides (disjunctive-cut-strengthening.pdf)