FLOPS 2024
Wed 15 - Fri 17 May 2024 Kumamoto, Japan

Welcome to the website of the 17th International Symposium on Functional and Logic Programming (FLOPS 2024). FLOPS 2024 is co-sponsored by Special Interest Group on Programming and Programming Languages (SIG-PPL), Japan Society for Software Science and Technology (JSSST), in cooperation with ACM SIGPLAN.

About FLOPS

FLOPS aims to bring 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. The scope includes all aspects of the design, semantics, theory, applications, implementations, and teaching of declarative programming. FLOPS specifically aims to promote cross-fertilization between theory and practice and among different styles of declarative programming.

Previous FLOPS meetings were held at Fuji Susono (1995), Shonan Village (1996), Kyoto (1998), Tsukuba (1999), Tokyo (2001), Aizu (2002), Nara (2004), Fuji Susono (2006), Ise (2008), Sendai (2010), Kobe (2012), Kanazawa (2014), Kochi (2016), Nagoya (2018), Akita online (2020), and Kyoto online (2022).

Schedule Overview (Tentative)

Wed 15 May Thu 16 May Fri 17 May
9:30 – 17:30
Keynote talk and research talks
9:30 – 12:00
Keynote talk and research talks

14:00 – evening
Excursion and Banquet
9:30 – around 17
Keynote talks and research talks

Highlights

Accepted Papers

Title
A Complete Dependency Pair Framework for Almost-Sure Innermost Termination of Probabilistic Term Rewriting
FLOPS 2024
An ML-Style Module System for Cross-Stage Type Abstraction in Multi-Stage Programming
FLOPS 2024
Declarative Pearl: Rigged Contracts
FLOPS 2024
DeepLLM: Casting Dialog Threads into Logic Programs
FLOPS 2024
Grants4Companies: Applying declarative methods for recommending and reasoning about business grants in the Austrian public administration (System description)
FLOPS 2024
Inferring Non-Failure Conditions for Declarative Programs
FLOPS 2024
Language-parameterized Proofs for Functional Languages with Subtyping
FLOPS 2024
MetaOCaml: Ten Years Later (System Description)
FLOPS 2024
Practical Constant-Time Memory Management for Functional Programming
FLOPS 2024
System Description: ACGtk: A Toolkit for Developing and Running Abstract Categorial Grammars
FLOPS 2024
System Description: A theorem-prover for subregular systems: The Language Toolkit and its interpreter, plebby
FLOPS 2024
[System description paper] A Constraint-based Mathematical Modeling Library in Prolog with Answer Constraint Semantics
FLOPS 2024
[System Description] Rhyme: A Data-Centric Multi-Paradigm Query Language based on Functional Logic Metaprogramming
FLOPS 2024
Tabulation with Zippers
FLOPS 2024
Term Evaluation Systems with Refinements: First-Order, Second-Order, and Contextual Improvement
FLOPS 2024

Call for Papers

FLOPS solicits original papers in all areas of declarative programming:

  • functional, logic, functional-logic programming, rewriting systems, formal methods and model checking, program transformations and program refinements, developing programs with the help of theorem provers or SAT/SMT solvers, verifying properties of programs using declarative programming techniques;
  • foundations, language design, implementation issues (compilation techniques, memory management, run-time systems, etc.), applications and case studies.

FLOPS promotes cross-fertilization among different styles of declarative programming. Therefore, research papers must be written to be understandable by a wide audience of declarative programmers and researchers. In particular, each submission should explain its contributions in both general and technical terms, clearly identifying what has been accomplished, explaining why it is significant for its area, and comparing it with previous work. Submission of system descriptions and declarative pearls are especially encouraged.

Submission

Submissions should fall into one of the following categories:

  • Regular research papers: they should describe new results and will be judged on originality, correctness, and significance.
  • System descriptions: they should describe a working system and will be judged on originality, usefulness, and design.
  • Declarative pearls: new and excellent declarative programs or theories with illustrative applications.

System descriptions and declarative pearls must be explicitly marked as such in the title.

Submissions must be unpublished and not submitted for publication elsewhere. Work that already appeared in unpublished or informally published workshops proceedings may be submitted. Authors must follow Springer’s Code of Conduct. See also the ACM SIGPLAN Republication Policy. At least one author of each accepted paper should plan to attend the conference in person to present the work: there will be no general facility for online or pre-recorded presentation (but we will do our best to accommodate visa issues and similar unavoidable obstacles).

Submissions must be written in English and can be up to 15 pages excluding references, though system descriptions and pearls are typically shorter. The formatting has to conform to Springer’s guidelines. Regular research papers should be supported by proofs and/or experimental results. In case of lack of space, this supporting information should be made accessible otherwise (e.g., a link to an anonymized web page or an appendix, which does not count towards the page limit). However, it is the responsibility of the authors to guarantee that their paper can be understood and appreciated without referring to this supporting information; reviewers may simply choose not to look at it when writing their review.

Papers should be submitted electronically at https://easychair.org/conferences/?conf=flops2024.

Reviewing process

FLOPS 2024 will employ a light double-blind reviewing process; reviewers will not see author names until they submit a review. To facilitate this, submitted papers must adhere to two rules:

  • author names and institutions must be omitted, and
  • references to authors’ own related work should be in the third person (e.g., not “We build on our previous work…” but rather “We build on the work of…”).

The purpose of this process is to help the reviewers come to an initial judgement about the paper without bias, not to make it impossible for them to discover the authors if they were to try. Nothing should be done in the name of anonymity that weakens the submission or makes the job of reviewing the paper more difficult (e.g., important background references should not be omitted or anonymized). In addition, authors should feel free to disseminate their ideas or draft versions of their paper as they normally would. For instance, authors may post drafts of their papers on the web or give talks on their research ideas.

Publication

The proceedings will be published by Springer International Publishing in the Lecture Notes in Computer Science (LNCS) series.

Springer LNCS logo

We expect to invite the authors of four to seven of the best papers to submit an extended version of their FLOPS paper to a special issue which will appear in the journal Science of Computer Programming (SCP).

Important dates

All deadlines are Anywhere on Earth (AoE = UTC-12).

  • Abstract due: Wed 6th Dec 2023
  • Submission deadline: Wed 13th Dec 2023
  • Notifications: Fri 26th Jan 2024
  • Final versions due: Wed 28th Feb 2024

Dates

This program is tentative and subject to change.

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Wed 15 May

Displayed time zone: Osaka, Sapporo, Tokyo change

09:20 - 09:30
OpeningFLOPS 2024
09:30 - 10:30
Invited TalkFLOPS 2024
Chair(s): Jeremy Gibbons Department of Computer Science, University of Oxford
09:30
60m
Keynote
Algebraic Connection between Logic Programming and Machine Learning
FLOPS 2024
10:30 - 11:00
Coffee breakFLOPS 2024
11:00 - 12:00
Program AnalysisFLOPS 2024
Chair(s): François Fages Inria Saclay - Ile de France
11:00
30m
Talk
Inferring Non-Failure Conditions for Declarative Programs
FLOPS 2024
Michael Hanus Kiel University
11:30
30m
Talk
Practical Constant-Time Memory Management for Functional Programming
FLOPS 2024
Chun Kit Lam Hong Kong University of Science and Technology, Lionel Parreaux HKUST (The Hong Kong University of Science and Technology)
12:00 - 14:00
14:00 - 15:30
RewritingFLOPS 2024
Chair(s): Matteo Cimini University of Massachusetts Lowell
14:00
30m
Talk
System Description: ACGtk: A Toolkit for Developing and Running Abstract Categorial Grammars
FLOPS 2024
Maxime Guillaume Yseop/INRIA, Sylvain Pogodalla LORIA/INRIA Lorraine, Vincent Tourneur LORIA/INRIA Nancy
14:30
30m
Talk
Term Evaluation Systems with Refinements: First-Order, Second-Order, and Contextual Improvement
FLOPS 2024
Koko Muroya RIMS, Kyoto University, Makoto Hamana Gunma University, Japan
15:00
30m
Talk
A Complete Dependency Pair Framework for Almost-Sure Innermost Termination of Probabilistic Term Rewriting
FLOPS 2024
Jan-Christoph Kassing RWTH Aachen, Research Group Computer Science 2, Stefan Dollase RWTH Aachen, Research Group Computer Science 2, Jürgen Giesl RWTH Aachen University
15:30 - 16:00
Coffee breakFLOPS 2024
16:00 - 17:30
MetaprogrammingFLOPS 2024
Chair(s): Michael Hanus Kiel University
16:00
30m
Talk
MetaOCaml: Ten Years Later (System Description)
FLOPS 2024
Oleg Kiselyov Tohoku University
16:30
30m
Talk
An ML-Style Module System for Cross-Stage Type Abstraction in Multi-Stage Programming
FLOPS 2024
Takashi Suwa Graduate School of Informatics, Kyoto University, and National Institute of Informatics, Atsushi Igarashi Kyoto University
17:00
30m
Talk
[System Description] Rhyme: A Data-Centric Multi-Paradigm Query Language based on Functional Logic Metaprogramming
FLOPS 2024
Supun Abeysinghe Purdue University, Tiark Rompf Purdue University

Thu 16 May

Displayed time zone: Osaka, Sapporo, Tokyo change

09:30 - 10:30
Invited TalkFLOPS 2024
Chair(s): Oleg Kiselyov Tohoku University
09:30
60m
Keynote
Verse: A New Functional Logic Language
FLOPS 2024
Lennart Augustsson Epic Games
10:30 - 11:00
Coffee breakFLOPS 2024
11:00 - 12:00
AlgebraFLOPS 2024
Chair(s): Lennart Augustsson Epic Games
11:00
30m
Talk
Tabulation with Zippers
FLOPS 2024
Marcos Viera University of the Republic, Uruguay, Alberto Pardo Universidad de la Republica, Uruguay, João Saraiva HASLab/INESC TEC, University of Minho
11:30
30m
Talk
Declarative Pearl: Rigged Contracts
FLOPS 2024
Alexander Vandenbroucke Standard Chartered, Tom Schrijvers KU Leuven
12:00 - 14:00
14:00 - 20:00
Excursion and banquetFLOPS 2024

Fri 17 May

Displayed time zone: Osaka, Sapporo, Tokyo change

09:30 - 10:30
Invited TalkFLOPS 2024
Chair(s): Shin-ya Katsumata National Institute of Informatics
09:30
60m
Keynote
Verification of Refactoring in Answer Set Programming
FLOPS 2024
Yuliya Lierler University of Nebraska
10:30 - 11:00
Coffee breakFLOPS 2024
11:00 - 12:00
ProofsFLOPS 2024
Chair(s): Koko Muroya RIMS, Kyoto University
11:00
30m
Talk
Language-parameterized Proofs for Functional Languages with Subtyping
FLOPS 2024
Seth Galasso University of Massachusetts Lowell, Matteo Cimini University of Massachusetts Lowell
11:30
30m
Talk
System Description: A theorem-prover for subregular systems: The Language Toolkit and its interpreter, plebby
FLOPS 2024
Dakotah Lambert Université Jean Monnet
12:00 - 13:30
15:00 - 15:30
Coffee breakFLOPS 2024
15:30 - 16:30
Invited TalkFLOPS 2024
Chair(s): Naohiko Hoshino Sojo University
15:30
60m
Keynote
Continuations from Three Angles
FLOPS 2024
Youyou Cong Tokyo Institute of Technology
16:30 - 16:40
ClosingFLOPS 2024