Call for Participation: Functional and Logic Programming (FLOPS, May 26-28, Tsukuba)

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

Further information about the conference and local arrangements is
available on the conference website.