CFP

ALENEX26: SIAM Symposium on Algorithm Engineering and Experiments

Hyatt Regency Vancouver

Vancouver, Canada, January 11-12, 2026

Conference website	https://www.siam.org/conferences-events/siam-conferences/alenex26/
Submission link	https://easychair.org/conferences/?conf=alenex26
Abstract registration deadline	July 18, 2025
Submission deadline	July 18, 2025

Topics: algorithm engineering algorithms data structures experimental analysis of algorithms

ALENEX 2026 Call for Papers

About the Conference

The aim of ALENEX is to provide a forum for the presentation of original research in the design, implementation, and experimental evaluation of algorithms and data structures. Typical submissions will include an extensive experimental analysis of nontrivial algorithmic results, ideally bridging the gap between theory and practice. We also invite submissions that address methodological issues and standards in the experimental evaluation of algorithms and data structures.

We welcome submissions on a broad range of topics within algorithm engineering and the experimental analysis of algorithms and data structures, including but not limited to the following:

Combinatorial optimization and mathematical programming, including scheduling and resource allocation problems
Computational biology and bioinformatics
Data science and data management, including databases
Design and analysis of application-inspired exact, approximation, randomized, streaming, and learning-augmented algorithms
Graph and hypergraph algorithms, including problems arising in network science and complex networks
String algorithms and data structures
Computational geometry
Interaction between algorithms and modern computing platforms, including challenges arising from memory hierarchies, accelerators, and novel memory technologies
Parallel and distributed computing, including algorithms, architectures, distributed systems, and all parallelism ranging from instruction-level and multi-core all the way to clouds and Exascale computing
Machine learning and statistical methods for solving combinatorial problems
Other applications arising from security, computational finance, computational chemistry/physics, quantum computing, etc.

Proceedings will be posted online in January 2026. ALENEX is supported by SIAM.

Since researchers in all fields are approaching the problem of learning detailed information about the performance of particular algorithms, we expect that interesting synergies will develop between the co-located conferences.

The following conferences will be held jointly:

Important Dates

Full Paper Submission: July 18, 2025

Author Notification: August 30, 2025

AE submission (for accepted papers): September 6, 2025

AE author notification: October 8, 2025

Camera ready submission: October 15, 2025

Program Committee Chairs

Simon J. Puglisi (University of Helsinki)

Nate Veldt (Texas A&M University)

Program Committee

Aydin Buluc (Lawrence Berkeley National Laboratory, U.S.)

Sarah Cannon (Claremont McKenna College, U.S.)

Laxman Dhulipala (University of Maryland, U.S.)

Jonas Ellert (ENS Paris, France)

S M Ferdous (Pacific Northwest National Laboratory, U.S.)

Assefaw Gebremedhin (Washington State University, U.S.)

Yan Gu (UC Riverside, U.S.)

Inge Li Gørtz (Technical University of Denmark, Denmark)

Christian Komusiewicz (University of Jena, Germany)

Quanquan C. Liu (Princeton University, U.S.)

Joel Mackenzie (University of Queensland, Australia)

Prashant Pandey (Northeastern University, U.S.)

Frank Sommer (TU Wien, Austria)

Sabine Storandt (University of Konstanz, Germany)

David Tench (Lawrence Berkeley National Laboratory, U.S.)

Helen Xu (Georgia Institute of Technology, U.S.)

Steering Committee Chair

Martin Farach-Colton, New York University, U.S.

Steering Committee

Kathrin Hanauer (University of Vienna, Austria)

Solon Pissis (CWI, Netherlands)

Julian Shun (Massachusetts Institute of Technology, U.S.)

Paolo Ferragina (University of Pisa, Italy)

Alex Pothen (Purdue University, U.S.)

Helen Xu (Georgia Institute of Technology, U.S.)

How to Participate

Format

Submissions must be PDF, formatted according to the double column macro posted here. (Note that there is also a single column macro, but ALENEX uses the double-column one.) Submissions must not exceed 10 pages, excluding front matter (title and abstract), references, and a clearly marked appendix (further described below).

Content

Papers should begin with the title of the paper as well as a short abstract, which can be on a separate first page, which will not be counted toward the 10-page limit. This should be followed by the main body of the paper that begins with a precise statement of the problem considered, a succinct summary of the results obtained (emphasizing the significance, novelty, and potential impact of the research), and a clear comparison with related work. The remainder of the paper should provide sufficient details to allow the program committee to evaluate the validity, quality, and relevance of the contribution. Clarity of presentation is very important; the entire paper should be written carefully, taking into consideration that it will be read and evaluated by both experts and non-experts, often under tight time constraints.

Appendix and Additional data

All details needed to verify the results must be provided. Supporting materials, including proofs of theoretical claims and experimental details, that do not fit in the 10 page limit should be given in an appendix. However, the authors should include in the main part specific pointers to the relevant locations in the appendix. The appendix will be read by the program committee members and subreviewers at their discretion and will not be published as part of the proceedings. Thus, the paper without the appendix should be able to stand on its own. Experimental and implementation results (independent of paper type) must be reproducible and verifiable. Authors are encouraged to put accompanying software and relevant data, in a repository accessible to the reviewers. Authors are asked to indicate which of the supporting materials will remain publicly available if their papers are accepted.

Double-blind

ALENEX will employ a lightweight double-blind reviewing process. Submissions should not reveal the identity of the authors in any way. In particular, authors' names, affiliations, and email addresses should not appear at the beginning or in the body of the submission. Authors should ensure that any references to their own related work is in the third person (e.g., not "We build on our previous work ..." but rather "We build on the work of ..."). Particular care needs to be taken with accompanying software or data, which need to be linked anonymously (for example, via a DropBox folder, anonymous GitHub repository, or the like). Upon registering a submission, the authors will declare conflicts of interest with PC members. The purpose of lightweight double-blind reviewing is to help PC members and external reviewers come to an initial judgment about the paper without bias, not to make it impossible for them to discover the authors if they were to try. Authors should feel free to disseminate their ideas or draft versions of their paper as they normally would. For example, authors may post drafts of their papers on the web, submit them to arXiv, and give talks on their research ideas. We encourage authors with further questions on double-blind reviewing to contact the PC chairs.

Previous or Simultaneous Submissions

Results previously published or accepted for publication in the proceedings of another conference cannot be submitted. Simultaneous submissions of the results to another conference with published proceedings are not allowed. Exempted are workshops and conferences without formal proceedings, but possibly with handouts containing short abstracts. Results that have already been accepted (with or without revision) for publication in a journal at the time of their submission to the symposium are not allowed. A paper submitted to a journal but not yet accepted for publication can be submitted to the symposium. In such cases, the authors must mention this on the front page of the submission and clearly identify the status of the journal submission at the date of the full paper submission deadline.

Accepted Papers

Final proceedings versions of accepted papers must use the same double column formatting macro as the submissions. The title and abstract should be incorporated into the main body of the paper. Title, abstract, and body of the paper altogether must not exceed 12 pages, followed by unlimited references. If any supporting material (including complete proofs of theoretical claims and experimental details) does not fit in the specified limit, then the full version of the paper containing this information must be referenced in the conference version and made available at a public repository, such as arXiv, by the time the final version is submitted. Where applicable, we encourage the authors to make accompanying software and/or data publicly accessible, with proper references in the paper.

The ALENEX PC may invite the authors of the 2-3 best accepted papers to submit longer versions to be considered for publication in the journal Algorithmica.

Artifact Evaluation

To verify and facilitate reproducibility of the results described in ALENEX papers, we encourage authors of accepted papers to submit their artifacts (e.g. code and data) for Artifact Evaluation (AE). The artifact submission deadline for accepted papers will be Sep. 6. A separate committee will examine the artifacts, with notification by Oct. 8. Participation in artifact evaluation is not mandatory and will not influence paper acceptance. However, AE results will be considered when inviting top papers for journal publication. Papers that pass Artifact Evaluation will be awarded SIAM badges for availability and reproducibility, which will be printed directly on the papers giving the readers greater confidence in the results presented in them. Participation in the AE phase will not be made public except for the papers that receive badges.

The EasyChair submission site is available:

https://easychair.org/my/conference?conf=alenex26

Proceedings

The proceedings will be posted online in mid-January 2026.

Acceptance Notification

The Program Committee chairs will distribute acceptance notices and final paper submission instructions to authors of accepted papers in late August 2025.

SIAM will distribute a follow-up notice in early October 2025; a list of accepted papers will be posted at this time.

For questions, please contact ALENEX’26 co-chairs, Simon Puglisi (simon.puglisi@ helsinki.fi) and Nate Veldt (nveldt@tamu.edu).