OCaml Users and Developers Workshop 2017

Oxford, UK
31 May 2017
Abstract submission deadline (any timezone)
28 Jun 2017
Author notification
08 Sep 2017
OCaml Workshop

OCaml 2017 will open with an invited talk by three frequent contributors that recently became maintainers of the OCaml implementation: David Allsopp (video), Florian Angeletti (video), and Sébastien Hinderer (video).

Due to the high number of high-quality submissions, we had to have more posters than in previous editions to fit a one-day schedule.

Call for presentations (past)


Presentations and discussions will focus on the OCaml programming language and its community. We aim to solicit talks on all aspects related to improving the use or development of the language and its programming environment, including, for example (but not limited to):

  • compiler developments, new backends, runtime and architectures

  • practical type system improvements, such as (but not limited to) GADTs, first-class modules, generic programming, or dependent types

  • new library or application releases, and their design rationales

  • tools and infrastructure services, and their enhancements

  • prominent industrial or experimental uses of OCaml, or deployments in unusual situations.


It will be an informal meeting with no formal proceedings. The presentation material will be available online from the workshop homepage. The presentations may be recorded, and made available at a later time.

The main presentation format is a workshop talk, traditionally around 20 minutes in length, plus question time, but we also have a poster session during the workshop -- this allows to present more diverse work, and gives time for discussion. The program committee will decide which presentations should be delivered as posters or talks.


To submit a presentation, please register a description of the talk (about 2 pages long) at https://icfp-ocaml17.hotcrp.com/ providing a clear statement of what will be provided by the presentation: the problems that are addressed, the solutions or methods that are proposed.

LaTeX-produced PDFs are a common and welcome submission format. For accessibility purposes, we ask PDF submitters to also provide the sources of their submission in a textual format, such as .tex sources. Reviewers may read either the submitted PDF or the text version.

ML family workshop and post-proceedings

The ML family workshop, held on the previous day, deals with general issues of the ML-style programming and type systems, focuses on more research-oriented work that is less specific to a language in particular (OCaml). There is an overlap between the two workshops, and we have occasionally transferred presentations from one to the other in the past. The authors who feel their submission fits both workshops are encouraged to mention it at submission time and/or contact the Program Chairs.

We are planning to publish combined post-proceedings and to invite interested authors of selected presentations to expand their abstracts for inclusion.

Questions and contact

Please send any questions to the chair: Gabriel Scherer <gabriel.scherer@gmail.com>

All Presentations

Title Authors Resources
A B-tree library for OCaml Tom Ridge Link Slides
A memory model for multicore OCaml Stephen Dolan, KC Sivaramakrishnan Link
Component-based Program Synthesis in OCaml Zhanpeng Liang, Kanae Tsushima Link
Extending OCaml's open Runhang Li, Jeremy Yallop Link Video
Genspio: Generating Shell Phrases In OCaml Sebastien Mondet Link Video Slides
Owl: A General-Purpose Numerical Library in OCaml Liang Wang Link Video Slides
ROTOR: First Steps Towards a Refactoring Tool for OCaml Reuben N. S. Rowe, Simon Thompson Link Slides
Testing with Crowbar Stephen Dolan, Mindy Preston Link
Tezos: the OCaml Crypto-Ledger Benjamin Canou, Grégoire Henry, Pierre Chambart, Fabrice Le Fessant, Arthur Breitman Link
The State of the OCaml Platform: September 2017 Anil Madhavapeddy Link Video Slides
Wodan: a pure OCaml, flash-aware filesystem library Gabriel de Perthuis Link
ocamli: interpreted OCaml John Whitington Link
mSAT: An OCaml SAT Solver Bury Guillaume Link
Tyre – Typed Regular Expressions Gabriel Radanne Link
Jbuilder: a modern approach to OCaml development Jeremie Dimino, Mark Shinwell

Workshop Details

Program Committee
Ashish Agarwal (Solvuu, USA), François Bobot (CEA, France), Frédéric Bour (OCaml Labs, France), Cristiano Calcagno (Facebook, UK), Louis Gesbert (OcamlPro, France), Sébastien Hinderer (INRIA, France), Atsushi Igarashi (Kyoto University, Japan), Oleg Kiselyov (Tohoku University, Japan), Julia Lawall (INRIA/LIP6, France), Sam Lindley (The University of Edinburgh, UK), Louis Mandel (IBM Research, USA), Zoe Paraskevopoulou (Princeton University, USA), Gabriel Scherer (Northeastern University, USA)

Some Videos

Extending OCaml's `open`
Speaker: Runhang Li
Genspio: Generating Shell Phrases in OCaml
Speaker: Sebastien Mondet
Owl: A General-Purpose Numerical Library in OCaml
Speaker: Liang Wang
State of the OCaml Platform 2017
Anil Madhavapeddy