Calls for Papers

Special Issue for the 2026 INFORMS Optimization Society Conference (IOS 2026)

Submission Deadline July 31, 2026

This special issue of the INFORMS Journal on Optimization will highlight advances in mathematical optimization associated to the refereed proceedings of the 2026 INFORMS Optimization Society conference (IOS 2026) held in Atlanta, USA. The IOS conference is the flagship meeting for the INFORMS Optimization Society, bringing together academics and practitioners to share new ideas in optimization theory, applications, and software. For complete details on IOS 2026, please see the the conference website.

The refereed proceedings option at IOS was created with the goal of providing a new outlet for members of the community. In the first edition, at IOS 2024, researchers were able to receive constructive reviewer feedback and highlight their work to others. The second edition, offered at IOS 2026, offered high-quality fast-turnaround reviews that could inform improvements for a later journal submission.

This special issue aims to collect high-quality papers that build on the strong submissions to the IOS 2026 refereed track. As with IOS 2026 itself, the special issue aims to highlight contributions coming from all corners of optimization, including (but not limited to) algorithmic, structural, and computational contributions to continuous, discrete, stochastic, and applied optimization.

Submissions must follow the IJOO submission guidelines, including the Conference Proceedings Policy, and will undergo the standard rigorous peer review process of the journal. Submissions will be limited to authors who submitted (regardless of final decision) to the IOS 2026 refereed proceedings. Authors are encouraged to consider reviewer feedback when making updates to their conference submissions.

Guest Editors

• Güzin Bayraksan – Professor, Integrated Systems Engineering Department,
  Ohio State University, USA
• Aleksandr Kazachkov – Assistant Professor, Department of Industrial and Systems Engineering,
  University of Florida, USA
• Zhaosong Lu – Professor, Department of Industrial and Systems Engineering
  University of Minnesota, USA
• Joseph Paat – Associate Professor, Sauder School of Business
  University of British Columbia, Canada

Timeline

• Call for Papers Issued: March 20, 2026
• Submission Deadline: July 31, 2026
• First Round of Reviews Completed: October 28, 2026
• Second Submission: December 30, 2026
• Secound Round of Reviews Completed: March 30, 2027
• Publication of Special Issue: Summer 2027 (subject to journal schedule)

Special Issue on Recent Advances in Mixed Integer Programming: Contributions from the MIP Workshop Series

Submission Closed (Deadline expired November 30, 2025)

This special issue will highlight recent theoretical and computational advances in mixed integer linear and nonlinear programming (MIP), reflecting the depth and breadth of research presented at the 2025 MIP Workshop (in Minneapolis) and its European counterpart (in Clermont-Ferrand). The MIP Workshop series has long been a focal point for the integer programming community, bringing together leading researchers to share breakthroughs in algorithm design, polyhedral theory, complexity analysis, and emerging application areas.

The special issue aims to collect high-quality papers that extend or build on work presented at these workshops, with a particular emphasis on novel methodology, insightful theoretical contributions, and innovative applications in discrete optimization.

Submissions will undergo the standard rigorous peer review process of the journal. Submissions will be limited to authors who presented a talk, flash talk, or poster at either of the two above-mentioned 2025 MIP workshops. Please, find the submission guidelines here. 

Guest Editors

• Claudia D’Ambrosio – CNRS Directrice de Recherche and Professeure Charg´ee de Cours,
  LIX, ´Ecole Polytechnique, France
• Jean-Philippe Richard – Professor, Department of Industrial and Systems Engineering,
  University of Minnesota, USA

Timeline

• Call for Papers Issued: July 2025
• Submission Deadline: November 30, 2025
• First Round of Reviews Completed: February 28, 2025
• Second Submission: April 30, 2026
• Secound Round of Reviews Completed: June 30, 2026
• Publication of Special Issue: Late 2026 (subject to journal schedule)