FLOPS 2026 – Call for Participation

The 18th International Symposium on Functional and Logic Programming

May 26-28, Tsukuba, Japan

`https://functional-logic.org/events/flops/2026/`

Welcome to the 18th International Symposium on Functional and Logic
Programming (FLOPS 2026) on May 26-May 28, 2026 in Tsukuba, Japan.

FLOPS 2026 is co-sponsored by Special Interest Group on Programming
and Programming Languages (SIG-PPL), Japan Society for Software
Science and Technology (JSSST).

FLOPS brings together practitioners, researchers and implementers of
declarative programming, to discuss mutually interesting results and
common problems: theoretical advances, their implementations in
language systems and tools, and applications of these systems in
practice. FLOPS specifically aims to promote cross-fertilization
between theory and practice and among different styles of declarative
programming.

Venue

FLOPS 2026 will take place at the University of Tskukuba. Tsukuba is
about 60km from central Tokyo, and easily reachable via public
transport from both Haneda and Narita airports.

Tsukuba is Japan’s science and technology city. Yet, it preserves
its rich traditions and local heritage with attractions such as
Mt. Tsukuba and Tsukubasan Shrine.

Registration

You can register for FLOPS 2026 here:

https://functional-logic.org/events/flops/2026/registration/

Early-bird registration fee (until Apr 25) is 50000¥/20000¥ for
students - roughly 275€, 325$, 240£ as of February 19.

Registration includes an excursion and a banquet on May 27. Extra
banquet tickets are available.

Program

Keynote speakers:

Kazunori Ueda, Waseda Univerity
Fritz Henglein, University of Copenhagen
Gabriele Keller, Utrecht University

Tutorial:

Jesse Alama, Scheming in Lean

Accepted papers:

Li, F., Gupta, G.: Computing Supported Models via Transformation to
Stable Models
Miyazawa, O., Nishizaki, S.: Matrix Coeffect: A Coeffect Calculus
for Handling Interdependent Information
Arntzenius, M., Willsey, M.: Finite Functional Programming or,
LAMBDA: the Ultimate Predicate
Lam, C.: Optimizing Mesh Booleans by Being Lazy (System Description)
Zhou, N., Jiang, C., Bierlee, H., Stuckey, P.: Dynamic Programming
and Tabled Logic Programming for Encoding Single-Constant
Multiplication into SAT (Declarative Pearl)
Bohrer, R.: Demonic Dynamic Logic Programming
Morihata, A.: Test Your Polymorphic Functions with Boolean Values
Kiselyov, O.: More Fun with Monoids (Declarative Pearl)
Boyland, P., Hyatt, S., Dewey, K., Hardekopf, B.: Breccia: A
Functional DSL Compiled to Egglog for Test Input Generation
Cabo, Q., Scholz, S.: Finding Programming Faults Even When Large
Parts of the Code have Disappeared
Maieli, R., Acclavio, M.: Probabilistic Linear Logic Programming
with an application to Bayesian Networks computations
Tudor, A., Arias, J., Gupta, G.: Automatic Knowledge Gap Detection
and Plan Validation Using Counterfactual Justifications
Hemann, J., Pfingsten, B.: Visualizing miniKanren Search with a
Fine-Grained Small-Step Semantics
Coltharp, N., Libby, S., Israel, L., Li, Y.: Unifying Hindsight and
Foresight: Lazy Cost Analysis as Functional Logic Programming