The 15th Learning and Intelligent Optimization Conference

June 20-25, 2021 (Athens, Greece)

Call for Papers

Paper Format

Please prepare your paper in English using the Lecture Notes in Computer Science (LNCS) template, which is available here. Papers must be submitted in PDF.

Types of Submissions

When submitting a paper to LION15, authors are required to select one of the following three types of papers:

Topics of Interest

LION15 welcomes high quality submissions on the broad topics of machine learning, artificial intelligence, energy, mathematical programming, optimization (models, algorithms and applications) and heuristics. Additionally, more specialized, submission topics for long and short papers may include, but are not limited to:

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

Submission System

All papers must be submitted using EasyChair at


  1. Conference proceedings will be published by Springer-Verlag in Lecture Notes in Computer Science.
    LION series LNCS published proceedings:

    The submission instructions for the LION 15 LNCS post-proceedings volume, will be uploaded on the conference webpage asap.
    Volume Editors: Dimitris E. Simos, Panos M. Pardalos, Ilias S. Kotsireas

  2. Revised selected papers of LION15 will be published in a special issue of Annals of Mathematics and Artificial Intelligence.
    LION series AMAI special issues published:

    Guest editorial: revised selected papers from the LION12 conference

    • Ilias S. Kotsireas
    • Panos M. Pardalos
    Annals of Mathematics and Artificial Intelligence, volume 88, pages 1–2 (2020)

    The AMAI Editorial Office enforces strict quality control on all submissions, before these are released to any special issue guest editors, and therefore, submission not abiding by the guidelines, are returned to the Authors. All submission will undergo a rigorous refereeing process, up to the AMAI standards.
    General submissions guidelines for AMAI:

    LION 15 AMAI Special Issue

    Guest Editors: Dimitris E. Simos (Austria), Panos M. Pardalos (United States), Ilias S. Kotsireas (Canada)

    Submission Deadline: November 30, 2021

    Notification Deadline: February 28, 2021

    LION 15 AMAI Special Issue manuscript submission:
    Select "LION15" as the article type when prompted in the pull-down menu. For any inquiries please contact the special issue Guest Editors.