The international Workshop on Functional and (constraint) LogicProgramming (WFLP) aims at bringing together researchers, students, and practitioners interested in functional programming, logic programming,and their integration. WFLP has a reputation for being a lively andfriendly forum, and it is open for presenting and discussing work inprogress, technical contributions, experience reports, experiments, reviews, and system descriptions. 

The 28th International Workshop on Functional and (Constraint) Logic Programming (WFLP 2020) will be organized by the University of Bologna, Italy, as part of Bologna Federated Conference on Programming Languages 2020 and it will be held entirely on-line due to the coronavirus pandemic.

Previous WFLP editions were WFLP 2019 (Brandenburgische TechnischeUniversität Cottbus, Germany), WFLP 2018 (Frankfurt am Main, Germany),WFLP 2017 (Würzburg, Germany), WFLP 2016 (Leipzig, Germany),WFLP 2014 (Wittenberg, Germany), WFLP 2013 (Kiel, Germany),WFLP 2012 (Nagoya, Japan), WFLP 2011 (Odense, Denmark),WFLP 2010 (Madrid, Spain), WFLP 2009 (Brasilia, Brazil), WFLP 2008 (Siena,Italy), WFLP 2007 (Paris, France), WFLP 2006 (Madrid, Spain), WCFLP2005 (Tallinn, Estonia), WFLP 2004 (Aachen, Germany), WFLP 2003(Valencia, Spain), WFLP 2002 (Grado, Italy), WFLP 2001 (Kiel, Germany),WFLP 2000 (Benicassim, Spain), WFLP'99 (Grenoble, France), WFLP'98 (BadHonnef, Germany), WFLP'97 (Schwarzenberg, Germany), WFLP'96 (Marburg,Germany), WFLP'95 (Schwarzenberg, Germany), WFLP'94 (Schwarzenberg,Germany), WFLP'93 (Rattenberg, Germany), and WFLP'92 (Karlsruhe,Germany).

Submission Guidelines

Submission is via Easychair submission website for WFLP 2020:

https://easychair.org/conferences/?conf=wflp2020

Authors are invited to submit papers in the following categories:

• Regular research paper
• Work-in-progress report
• System description

Regular research papers must describe original work, be written and presented in English, and must not substantially overlap with papers that have been formally published or that are simultaneously submittedto a journal, conference, or workshop with formal proceedings. They will be judged on the basis of significance, relevance, correctness, originality, and clarity. For work-in-progress reports and system descriptions, less formal rules apply, and presentation-only submissions (talk and discussion, but no paper in the formal proceedings) are possible. Please contact the PC chair with any questions.

All submissions must be formatted in the Lecture Notes in Computer Science style. Submissions cannot exceed 15 pages including references but excluding well-marked appendices not intended for publication. Reviewers are not required to read the appendices, and thus papers should be intelligible without them. However, all submissions (especially work-in-progress reports and system descriptions) may be considerably shorter than 15 pages.

List of Topics

The topics of interest cover all aspects of functional and logic programming. They include (but are not limited to):

• Functional programming
• Logic programming
• Constraint programming
• Deductive databases, data mining
• Extensions of declarative languages, objects
• Multi-paradigm declarative programming
• Foundations, semantics, non-monotonic reasoning, dynamics
• Parallelism, concurrency
• Program analysis, abstract interpretation
• Program and model manipulation
• Program transformation, partial evaluation, meta-programming
• Specification
• Verification
• Debugging
• Testing
• Knowledge representation, machine learning
• Interaction of declarative programming with other formalisms
• Implementation of declarative languages
• Advanced programming environments and tools
• Software techniques for declarative programming
• Applications

The primary focus is on new and original research results, but submissions describing innovative products, prototypes under development, application systems, or interesting experiments (e.g., benchmarks) are also encouraged. Survey papers that present some aspects of the above topics from a new perspective, and experience reports are also welcome.

Papers must be written and presented in English. Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions).

Committees

Program Committee

• Sergio Antoy (Portland State University, USA)
• Demis Ballis (University of Udine, Italy)
• Moreno Falaschi (Università di Siena, Italy)
• Michael Hanus (University of Kiel, Germany) (Co-Chair)
• Herbert Kuchen (University of Muenster, Germany)
• Dale Miller (INRIA and LIX/Ècole Polytechnique)
• Claudio Sacerdoti Coen (University of Bologna, Italy) (Co-Chair)
• Konstantinos Sagonas (Uppsala University, Sweden)
• Enrico Tassi (INRIA, France)Janis Voigtländer (University of Duisburg-Essen, Germany)
• Johannes Waldmann (HTWK Leipzig, Germany)

Organizing committee

• Claudio Sacerdoti Coen (University of Bologna, Italy)