Call for Papers

The Twenty-Fourth Conference on Principles and Practice of Constraint Programming (CP 2018) will take place in Lille, France, 27-31 August 2018.

The CP conference series concerns all aspects of computing with constraints, including: theory, algorithms, environments, languages, models, systems, and applications.

The CP 2018 programme will include presentations of high-quality scientific papers and tutorials on both theory and applications. Invited talks will describe important topics relevant to the field. There are also workshops and a doctoral program for students.


The conference features a main Technical Track and various thematic tracks, which include:

Papers are submitted to individual tracks. Submissions that relate not only to CP technology but to constraint solving in general, and that are of potential interest to the CP community, are invited. The thematic tracks, in particular, are intended to reach out to researchers beyond the CP community. Each track has a dedicated chair and subcommittee to ensure that reviewers have the relevant domain expertise.

Important dates

All deadlines are AoE

  • 12 April 2018 - Abstract submission
  • 21 April 2018 - Paper submission
  • 15-19 May 2018 - Author response period
  • 1 June 2017 - Notification
  • 15 June 2018 - Camera-ready

Submissions Instructions

Paper submission is via EasyChair (CP 2018). Each submission should be directed to the Main Technical Track or to one of the seven themed tracks.

Length and format

There are two paper categories: long papers (15 LNCS pages + references) and short papers (8 LNCS pages + references). Short papers will be reviewed according to the same standards of quality as full papers and are eligible for the best paper prizes. Presentation time at the conference will be the same for long and short papers.

Papers should be submitted in the form of a PDF file following Springer’s LNCS formatting guidelines. Submissions exceeding the respective page limit or improperly formatted will be rejected without review.

Anonymous Submission

Reviewing is double blind, meaning that authors and reviewers are anonymous to each other. For this reason, submitted papers should not contain author names, affiliations, or links to identifying web sites. References should be cited in such a way as not to reveal the authorship of the paper.

Multiple Submission

A given paper must be submitted to exactly one track. In rare circumstances, the Program Chair may move a submission to another, more suitable track.

Submissions should not have appeared in, be accepted for, or be under review for another peer-reviewed conference or journal, with the exception of papers submitted to IJCAI 2018 (see below). Submissions that have appeared at workshops or other meetings of lower status than a conference are allowed, as are submissions which have only appeared in conferences in highly shortened form (e.g., abstracts).

Papers already submitted to the IJCAI 2018 main track may be submitted to CP 2018. However, if a paper is accepted by IJCAI (notification date 16 April), it must be promptly withdrawn from CP prior to the full paper deadline of midnight 18 April.


Accepted papers (in all tracks) will appear in conference proceedings published by Springer in the Lecture Notes in Computer Science (LNCS) series. The proceedings will be available at the time of the conference.

Authors of certain outstanding accepted papers will be offered two publication options: (a) publication in the conference proceedings and, if desired, submission of an extended version to a special issue of Journal of Artificial Intelligence Research; (b) publication of an abstract in the conference proceedings, and publication of an extended version of the paper in Constraints after the conference. In option (b), the original paper will be made available on the conference website at the time of the conference. Option (b) differs from the “fast track” option of some previous conferences in that the extended paper is published after the conference, to allow adequate time for peer review.

Other Informations

Questions about the paper submission process may be addressed to the Program Chair John Hooker.