20th International Symposium on
Principles and Practice of Declarative Programming

PPDP 2018

Frankfurt am Main, Germany, 3-5 September 2018

Overview of PPDP 2018

The 20th International Symposium on Principles and Practice of Declarative Programming will take place 3-5 September 2018 in Frankfurt am Main, Germany.

PPDP 2018 is a forum that brings together researchers from the declarative programming communities, including those working in the functional, logic, answer-set, and constraint handling programming paradigms. The goal is to stimulate research in the use of logical formalisms and methods for analyzing, performing, specifying, and reasoning about computations, including mechanisms for concurrency, security, static analysis, and verification.

Submissions are invited on all topics from principles to practice, from foundations to applications. Topics of interest include, but are not limited to

  • Language Design: domain-specific languages; interoperability; concurrency, parallelism, and distribution; modules; probabilistic languages; reactive languages; database languages; knowledge representation languages; languages with objects; language extensions for tabulation; metaprogramming.
  • Implementations: abstract machines; interpreters; compilation; compile-time and run-time optimization; memory management.
  • Foundations: types; logical frameworks; monads and effects; semantics.
  • Analysis and Transformation: partial evaluation; abstract interpretation; control flow; data flow; information flow; termination analysis; resource analysis; type inference and type checking; verification; validation; debugging; testing.
  • Tools and Applications: programming and proof environments; verification tools; case studies in proof assistants or interactive theorem provers; certification; novel applications of declarative programming inside and outside of CS; declarative programming pearls; practical experience reports and industrial application; education.

PPDP 2018 will be held in Frankfurt am Main, Germany. Previous symposia were held at Namur (Belgium), Edinburgh (UK), Siena (Italy), Canterbury (UK), Madrid (Spain), Leuven (Belgium), Odense (Denmark), Hagenberg (Austria), Coimbra (Portugal), Valencia (Spain), Wroclaw (Poland), Venice (Italy), Lisboa (Portugal), Verona (Italy), Uppsala (Sweden), Pittsburgh (USA), Florence (Italy), Montréal (Canada), and Paris (France).
They can be browsed at the DBLP Computer Science Bibliography.

Continuing a friendly tradition, PPDP 2018 will be co-located with the 28th International Symposium on Logic-Based Program Synthesis and Transformation (LOPSTR 2018).

PPDP 2018 is in cooperation with ACM SIGPLAN

ACM        SIGPLAN           

Program Committee

  • Peter Thiemann, Universität Freiburg, Germany (Program Chair)
  • Further members will be announced soon

Important Dates

Abstract submission: TBA
Paper submission: TBA
Notification: TBA
Symposium: 3-5 September, 2018

Call for Papers

The Call for Papers can be viewed or downloaded as

Submission Categories & Guidelines

Submission Categories

Submissions can be made in three categories: regular Research Papers, System Descriptions, and Experience Reports.

Submissions of Research Papers must present original research which is unpublished and not submitted elsewhere. They must not exceed 12 pages ACM style 2-column (including figures, but excluding bibliography). Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions). Research papers will be judged on originality, significance, correctness, clarity, and readability.

Submission of System Descriptions must describe a working system whose description has not been published or submitted elsewhere. They must not exceed 10 pages and should contain a link to a working system. System Descriptions must be marked as such at the time of submission and will be judged on originality, significance, usefulness, clarity, and readability.

Submissions of Experience Reports are meant to help create a body of published, refereed, citable evidence where declarative programming such as functional, logic, answer-set, constraint programming, etc., is used in practice. They must not exceed 6 pages. Experience Reports must be marked as such at the time of submission and need not report original research results. They will be judged on significance, usefulness, clarity, and readability.

Possible topics for an Experience Report include, but are not limited to:

  • insights gained from real-world projects using declarative programming
  • comparison of declarative programming with conventional programming in the context of an industrial project or a university curriculum
  • curricular issues encountered when using declarative programming in education
  • real-world constraints that created special challenges for an implementation of a declarative language or for declarative programming in general
  • novel use of declarative programming in the classroom
  • programming pearl that illustrates a nifty new data structure or programming technique.

At least one author of each accepted submission will be expected to attend and present their paper at the conference.

Submission Guidelines

The submission guidlines will follow soon.


We plan to publish the proceedings in the ACM Digital Library.


Program Chair

Peter Thiemann
Department of Computer Science
University of Freiburg

Local Organiser

David Sabel
Computer Science Institute
Goethe-University Frankfurt am Main