--- title: "Top Operations Research conferences (CORE A*/A) 2024–2026" description: "10 conferences rated A* or A by the CORE ICORE2026 ranking are listed for Operations Research; OpenAlex lists 2,420 papers from 2024–2026 for them. The largest are SODA (631), GECCO (504) and ESA (350)." url: https://scholar4ai.com/proceedings/categories/operations-research markdown_url: https://scholar4ai.com/proceedings/categories/operations-research.md license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/) share_text: "10 conferences rated A* or A by the CORE ICORE2026 ranking are listed for Operations Research; OpenAlex lists 2,420 papers from 2024–2026 for them. The largest are SODA (631), GECCO (504) and ESA (350). (as of 2026-11-02)" data_url: https://scholar4ai.com/data/rankings.json updated: 2026-11-02T12:20:52+09:00 window: 2026-10-04 to 2026-11-02 source: OpenAlex (CC0) --- # Operations Research conference proceedings: CORE A* and A conferences, 2024–2026 The conferences rated A* or A by the CORE Conference Rankings (ICORE2026) that relate to operations research: ICAPS, CP, SAT, SODA, ESA, APPROX/RANDOM, ALENEX, GECCO, PPSN and FOGA. A conference can be listed under several categories. Ranks are those of the CORE Conference Rankings, edition ICORE2026 (portal.core.edu.au), applied to every year shown. Papers are the works OpenAlex lists for the conference's proceedings, or for the issues of a conference-linked journal that publishes its papers (such as PACMPL, PVLDB or ACM TOG), by publication year; workshops, companion volumes, posters and Findings are left out. A paper counts once for each institution and country among its authors' affiliations as OpenAlex assigns them; papers without affiliations in OpenAlex count for none. For conferences published in book series that OpenAlex files as one source (LNCS, LIPIcs, SIAM and IOS Press proceedings), the papers are found by DOI: those of the volumes with the conference's title in Crossref, or LIPIcs DOIs, which name the conference. Conferences without DOIs (PMLR, USENIX, OpenReview) are listed without counts. A dash (–) for a year means OpenAlex has no papers of the conference for it yet: the proceedings are not published or indexed yet, or the conference did not meet that year (some meet every other year). 2026 counts what OpenAlex had indexed by 2026-11-02. All conferences: https://scholar4ai.com/proceedings.md · Operations Research journals dashboard: https://scholar4ai.com/categories/operations-research.md ## Key findings - 10 conferences rated A* or A by the CORE ICORE2026 ranking are listed for Operations Research; OpenAlex lists 2,420 papers from 2024–2026 for them. - The largest are SODA (631), GECCO (504) and ESA (350). - The most-cited paper is “New Bounds for Matrix Multiplication: from Alpha to Omega” (SODA, 2024), with 100 citations. ## Conferences *CORE A* and A conferences for Operations Research: papers per publication year, 2024–2026 (–: not in OpenAlex yet)* | Conference | Name | Rank | Field | 2024 | 2025 | 2026 | 2024–2026 | |---|---|---|---|---:|---:|---:|---:| | [SODA](https://scholar4ai.com/proceedings/soda.md) | ACM/SIAM Symposium on Discrete Algorithms | A* | Theory of computation | 193 | 193 | 245 | 631 | | [ICAPS](https://scholar4ai.com/proceedings/icaps.md) | International Conference on Automated Planning and Scheduling | A* | Artificial intelligence | 82 | 51 | 91 | 224 | | [GECCO](https://scholar4ai.com/proceedings/gecco.md) | Genetic and Evolutionary Computations | A | Artificial intelligence | 181 | 170 | 153 | 504 | | [ESA](https://scholar4ai.com/proceedings/esa.md) | European Symposium on Algorithms | A | Theory of computation | 78 | 123 | 149 | 350 | | [PPSN](https://scholar4ai.com/proceedings/ppsn.md) | Parallel Problem Solving from Nature | A | Machine learning | 101 | – | 165 | 266 | | [APPROX/RANDOM](https://scholar4ai.com/proceedings/approx-random.md) | International Workshop on Approximation Algorithms for Combinatorial Optimization Problems and International Conference on Randomization and Computation | A | Theory of computation | 51 | 76 | 61 | 188 | | [CP](https://scholar4ai.com/proceedings/cp.md) | International Conference on Principles and Practice of Constraint Programming | A | Artificial intelligence | 18 | 15 | 62 | 95 | | [SAT](https://scholar4ai.com/proceedings/sat.md) | International Conference on Theory and Applications of Satisfiability Testing | A | Artificial intelligence, Theory of computation | 16 | 18 | 45 | 79 | | [ALENEX](https://scholar4ai.com/proceedings/alenex.md) | Workshop on Algorithm Engineering and Experiments | A | Theory of computation | 18 | 19 | 19 | 56 | | [FOGA](https://scholar4ai.com/proceedings/foga.md) | Foundations of Genetic Algorithms | A | Artificial intelligence | – | 27 | – | 27 | ## Most-cited papers *Most-cited papers of these conferences, 2024–2026 (citations counted by OpenAlex)* | # | Citations | Title | Conference | Published | |---:|---:|---|---|---| | 1 | 100 | [New Bounds for Matrix Multiplication: from Alpha to Omega](https://doi.org/10.1137/1.9781611977912.134) | SODA | 2024-01-01 | | 2 | 67 | [SayNav: Grounding Large Language Models for Dynamic Planning to Navigation in New Environments](https://doi.org/10.1609/icaps.v34i1.31506) | ICAPS | 2024-05-30 | | 3 | 54 | [On the Prospects of Incorporating Large Language Models (LLMs) in Automated Planning and Scheduling (APS)](https://doi.org/10.1609/icaps.v34i1.31503) | ICAPS | 2024-05-30 | | 4 | 52 | [LLMatic: Neural Architecture Search Via Large Language Models And Quality Diversity Optimization](https://doi.org/10.1145/3638529.3654017) | GECCO | 2024-07-08 | | 5 | 44 | [Mutational Fuzz Testing for Constraint Modeling Systems](https://doi.org/10.4230/lipics.cp.2024.29) | CP | 2024-01-01 | | 6 | 40 | [Runtime Analyses of NSGA-III on Many-Objective Problems](https://doi.org/10.1145/3638529.3654218) | GECCO | 2024-07-08 | | 7 | 36 | [More Asymmetry Yields Faster Matrix Multiplication](https://doi.org/10.1137/1.9781611978322.63) | SODA | 2025-01-01 | | 8 | 29 | [LLM Guided Evolution - The Automation of Models Advancing Models](https://doi.org/10.1145/3638529.3654178) | GECCO | 2024-07-08 | | 9 | 26 | [Breaking the 3/4 Barrier for Approximate Maximin Share](https://doi.org/10.1137/1.9781611977912.4) | SODA | 2024-01-01 | | 10 | 24 | [Large-Scale Benchmarking of Metaphor-Based Optimization Heuristics](https://doi.org/10.1145/3638529.3654122) | GECCO | 2024-07-08 | ## Cite this page Scholar4AI. (2026). Operations Research conference proceedings: CORE A* and A conferences, 2024–2026. Journal and Conference Research Rankings. Retrieved November 2, 2026, from https://scholar4ai.com/proceedings/categories/operations-research ```bibtex @misc{scholar4ai-proceedings-categories-operations-research, author = {{Scholar4AI}}, title = {Operations Research conference proceedings: CORE A* and A conferences, 2024–2026}, year = {2026}, howpublished = {\url{https://scholar4ai.com/proceedings/categories/operations-research}}, urldate = {2026-11-02}, note = {Journal and Conference Research Rankings; data from OpenAlex (CC0); licensed CC BY-NC 4.0} } ``` License: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/).