39th Workshop on (Constraint and Functional) Logic Programming (WLP 2025)

September 24, 2025 in Évora, Portugal

Workshop at Declare 2025 (September 24-26, 2025 in Évora, Portugal)
and co-located with

Call for Papers WLP 2025

General

The Workshops on (Constraint) Logic Programming are the annual meeting of the German Society of Logic Programming Gesellschaft für Logische Programmierung e.V. (GLP) and brings together researchers interested in logic programming, constraint programming, answer set programming, and related areas like databases and artificial intelligence (not only from Germany).

The workshops provide a forum for exchanging ideas on declarative programming, especially logic, constraint logic and functional logic programming, nonmonotonic reasoning and knowledge representation, and facilitate interactions between research in theoretical foundations and in the design and implementation of logic-based programming systems.

The technical program of the workshop will include invited talks, presentations of refereed papers, and system demonstrations.

Previous WLP editions: WLP 2024 (Würzburg, Germany), WLP 2023 (Berlin, Germany), WLP 2022 (Trier, Germany), WLP 2021 (Berlin, Germany), WLP 2020 (Bamberg, Germany), WLP 2019 (Cottbus, Germany), WLP 2018 (Berlin, Germany), WLP 2017 (Würzburg, Germany), WLP 2016 (Leipzig, Germany), WLP 2015 (Dresden, Germany), WLP 2014 (Lutherstadt Wittenberg, Germany), WLP 2013 (Kiel, Germany), WLP 2012 (Bonn, Germany), WLP 2011 (Vienna, Austria), WLP 2010 (Cairo, Egypt), WLP 2009 (Potsdam, Germany), WLP 2008 (Dresden, Germany), WLP 2007 (Würzburg, Germany), WLP 2006 (Vienna, Austria), WLP 2005 (Ulm, Germany), WLP 2004 (Potsdam, Germany), WLP 2002 (Dresden, Germany), WLP 2001 (Kiel, Germany), WLP 2000 (Berlin, Germany), WLP 1999 (Würzburg, Germany), WLP 1998 (Vienna, Austria), WLP 1997 (Munich, Germany), WLP 1995 (Vienna, Austria)

Important Dates

submission opens: May 1, 2025
submission closes: July 18th, 2025
notification: August 2025
early registration deadline: August 2025
final version due: August 2025
workshop: September 24, 2025

Topics

Contributions are welcome on all theoretical, experimental, and application aspects of logic programming (LP) and constraint programming (CP), including, but not limited to the following areas (the order does not reflect any priorities):

Logic Programming and Extensions

foundations of CP and LP
constraint solving and optimisation
functional logic programming, objects
dynamics, updates, states, transactions
interaction of CP and LP with other formalisms like agents, XML, JAVA
parallelism and concurrency
complexity and expressive power
program analysis, program transformation, program verification, meta programming

Knowledge Representation and Nonmonotonic Reasoning

deductive databases, data mining
rule-based systems
abductive and inductive logic programming
answer-set programming
semantics and proof-theoretical investigations

Application of Logic Programming

logic programming in production, management, environment, education, medicine, internet, etc.
CP/LP for Semantic Web applications and reasoning on the Semantic Web
data modelling for the Web, semistructured data, and Web query languages

Implementation of Systems

system descriptions, comparisons, evaluations
benchmarks
implementation techniques
software techniques and programming support (e.g., types, modularity, design patterns, debugging, testing, systematic program development).

PC Chair

Sibylle Schwarz, Hochschule für Technik, Wirtschaft und Kultur Leipzig

Program Committee (to be confirmed)

Slim Abdennadher, German University in Cairo, Egypt
Salvador Abreu, University of Évora, Portugal
Stefan Brass, University of Halle-Wittenberg, Germany
Ulrich Geske, University of Potsdam, Germany
Michael Hanus, CAU Kiel, Germany
Petra Hofstedt, Brandenburg University of Technology Cottbus, Germany
Ulrich John, IU International University of Applied Sciences, Germany
Dietmar Seipel, Julius-Maximilians-Universität Würzburg, Germany
Hans Tompits, Vienna University of Technology, Austria
Janis Voigtländer, University of Bonn, Germany
Mario Wenzel, University of Halle, Germany

Submission Details

Authors are invited to submit papers in the following categories:

extended abstract (no longer than 12 pages including figures and references) or
system description (no longer than 6 pages, excluding references)

via the EasyChair submission website for WLP 2025.

Papers must describe original work, be written and presented in English, and must not substantially overlap with papers that have been published or that are simultaneously submitted to a journal, conference, or workshop with refereed proceedings. However, work that already appeared in unpublished or informally published workshops proceedings may be submitted, too.

Workshop languages are German and English.

Proceedings (to be confirmed)

All accepted papers will be published as a technical report and made available electronically at the workshop. As for previous events, it is planned to publish selected papers as post-conference proceedings.

Registration, Travel

refer to Declare 2025

Sibylle Schwarz | HTWK Leipzig