LION15 Springer LNCS Proceedings Published

LION15 Proceedings comprised of revised selected papers presented at the conference have been published as an Springer LNCS volume and are accessible via



The 15th Learning and Intelligent Optimization (LION) conference is planned to
take place as a physical virtual conference on June 20-25, 2021 online

The 2021 LION Organization is closely monitoring the ongoing COVID-19 situation. The safety and well-being of all conference participants is our top priority. After studying and evaluating the announcements, guidance, and news released by relevant national departments, we are prepared decided to convert LION15 into an all-digital conference experience. The dates of the conference will remain the same.

The 15th Learning and Intelligent Optimization Conference

June 20-25, 2021 (Athens, Greece)

The large variety of heuristic algorithms for hard optimization problems raises numerous interesting and challenging issues. Practitioners using heuristic algorithms for hard optimization problems are confronted with the burden of selecting the most appropriate method, in many cases through expensive algorithm configuration and parameter tuning. Scientists seek theoretical insights and demand a sound experimental methodology for evaluating algorithms and assessing strengths and weaknesses. This effort requires a clear separation between the algorithm and the experimenter, who, in too many cases, is "in the loop" as a motivated intelligent learning component. LION deals with designing and engineering ways of "learning" about the performance of different techniques, and ways of using past experience about the algorithm behavior to improve performance in the future. Intelligent learning schemes for mining the knowledge obtained online or offline can improve the algorithm design process and simplify the applications of high-performance optimization methods. Combinations of different algorithms can further improve the robustness and performance of the individual components.

This meeting explores the intersections and uncharted territories between machine learning, artificial intelligence, energy, mathematical programming and algorithms for hard optimization problems. The main purpose of the event is to bring together experts from these areas to discuss new ideas and methods, challenges and opportunities in various application areas, general trends and specific developments. We are excited to be bringing the LION conference in Greece for the third time.

Conference Program

LION15 conference program is now available via this link.

Important Dates

All deadlines are Anywhere on Earth (AoE = UTC-12h).

Submission deadline February 15, 2021 March 15, 2021 April 15 (firm)
Author notification March 31, 2021 April 31, 2021 May 15, 2021 May 31
Registration opens May 20, 2021 June 1, 2021
Conference June 20-25, 2021
Submission of camera-ready papers, source files, formatted according to Springer's LNCS guidelines July 25, 2021

Conference Organization

General Chair Panos Pardalos Center for Applied Optimization, University of Florida, USA
Technical Program Committee Chair Dimitris E. Simos SBA Research, Austria & Graz University of Technology, Austria & NIST, USA
Local Organizing Committee Chair Ilias Kotsireas CARGO Lab, Wilfrid Laurier University, Canada

The LION15 conference organization is a joint partnership of the Center for Applied Optimization of University of Florida, USA, the MATRIS research group of SBA Research, Ausria and the CARGO lab of Wilfrid Laurier University, Canada.


Interested in participating in or sponsoring LION15?

If you would like to be alerted about the call for papers, the call for contests and special sessions, and additional organization details please contact the Conference Chairs. You can find their emails in their respective websites.

Photo Credit

Elias Tyligadas.