ICFP 2021
Sun 22 - Sat 28 August 2021

The OCaml Users and Developers Workshop brings together industrial users of OCaml with academics and hackers who are working on extending the language, type system, and tools. Previous editions have been co-located with ICFP 2012 in Copenhagen, ICFP 2013 in Boston, ICFP 2014 in Gothenburg, ICFP 2015 in Vancouver, ICFP 2016 in Nara, ICFP 2017 in Oxford, ICFP 2018 in St Louis, ICFP 2019 in Berlin, and was virtual for ICFP 2020, following the OCaml Meetings in Paris in 2010 and 2011.

OCaml 2021 will be a virtual workshop, co-located with ICFP 2021.

Please contact the PC Chair (Frédéric Bour) for any questions.

Dates
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Fri 27 Aug

Displayed time zone: Seoul change

16:00 - 17:30
Session 1OCaml at OCaml
Chair(s): Youyou Cong Tokyo Institute of Technology
16:00
30m
Talk
GopCaml: A Structural Editor for OCaml
OCaml
Kiran Gopinathan National University of Singapore
File Attached
16:30
30m
Talk
OCaml and Python: Getting the Best of Both Worlds
OCaml
Laurent Mazare Jane Street
17:00
30m
Talk
Adapting the OCaml ecosystem for Multicore OCaml
OCaml
Sudha Parimala Segfault Systems, Enguerrand Decorne Tarides, Sadiq Jaffer Opsian and OCaml Labs, Tom Kelly OCaml Labs, KC Sivaramakrishnan IIT Madras
File Attached
18:00 - 19:30
Session 2OCaml at OCaml
Chair(s): Tim McGilchrist Tarides
18:00
30m
Talk
Deductive Verification of Realistic OCaml Code
OCaml
Carlos Pinto NOVA LINCS & Universidade da Beira Interior, Portugal, Mário Pereira NOVA LINCS & DI -- Nova School of Science and Technology, Simão Melo de Sousa NOVA LINCS & Universidade da Beira Interior, Portugal
18:30
20m
Talk
Parafuzz: Coverage-guided Property Fuzzing for Multicore OCaml programs
OCaml
Sumit Padhiyar Indian Institue Of Technology, Madras, Adharsh Kamath National Institute of Technology Karnataka, Surathkal, India, KC Sivaramakrishnan IIT Madras
Media Attached File Attached
18:50
20m
Talk
Wibbily Wobbly Timey Camly
OCaml
Di Long Li The Australian National University, Gabriel Radanne Inria
19:10
20m
Talk
Leveraging Formal Specifications to Generate Fuzzing Suites
OCaml
Nicolas Osborne Tarides, Clément Pascutto Tarides, Université Paris-Saclay, CNRS, ENS Paris-Saclay, LMF
22:00 - 23:30
KeynoteOCaml at OCaml
Chair(s): Anil Madhavapeddy University of Cambridge, UK
22:00
60m
Keynote
25 years of OCaml
OCaml
Xavier Leroy Collège de France
23:30 - 01:00
Session 4OCaml at OCaml
Chair(s): Raja Boujbel OCamlPro
23:30
30m
Talk
Experiences with Effects
OCaml
Thomas Leonard OCaml Labs, Craig Ferguson Tarides, Patrick Ferris OCaml Labs, Sadiq Jaffer Opsian and OCaml Labs, Tom Kelly OCaml Labs, KC Sivaramakrishnan IIT Madras, Anil Madhavapeddy University of Cambridge, UK
File Attached
00:00
30m
Talk
Opam-bin: Binary Packages with Opam
OCaml
File Attached
00:30
30m
Talk
Love: a readable language interpreted by a blockchain
OCaml

Sat 28 Aug

Displayed time zone: Seoul change

01:30 - 03:00
Session 5OCaml at OCaml
Chair(s): Ashish Agarwal
01:30
30m
Talk
From 2n+1 to n
OCaml
Nandor Licker University of Cambridge, Timothy M. Jones University of Cambridge, UK
File Attached
02:00
20m
Talk
Property-Based Testing for OCaml through Coq
OCaml
Paaras Bhandari University of Maryland, College Park, Leonidas Lampropoulos University of Maryland, College Park
02:20
20m
Talk
Safe Protocol Updates via Propositional Logic
OCaml
Michael O'Connor Jane Street

Call for Presentations

The submission deadline has been extended to Thursday 27th May.

Scope

Presentations and discussions 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 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.

Presentations

Presentations will be held in the online format. Each presentation comprise a prerecorded presentation and an interactive live Q&A session after the talk. Each talk will be re-translated three times in different time zones. Session chairs and volunteers will assist the authors in preparing and casting the presentation. Each presentation will be made available through the ocaml.org website.

Submission

To submit a presentation, please register a description of the talk (about 2 pages long) at https://ocaml2021.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.

Camera ready presentations

A pre-recorded versions of accepted presentation shall be provided before August, 13th. Volunteers will provide technical assistance to authors as well as provide necessary feedback and ensure that all videos match our quality standards.

Important dates

  • Thursday 27th May (any time zone): Abstract submission deadline (extended)
  • Friday 18th July: Author notification
  • Friday 27th August: OCaml Workshop

ML family workshop

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. There is an overlap between the two workshops, and we have occasionally transferred presentations from one to the other in the past. Authors who feel their submission fits both workshops are encouraged to mention it at submission time and/or contact the Program Chairs.

Call for Volunteers

The OCaml Workshop will be held virtually. We are looking for volunteers to fill the role of session host. The role is described in details below. We are asking prospective Organizing Committee members to contact the Committee chair (frederic.bour@lakaban.net).

Session Hosts

On August 27, the session hosts will assist session chairs in streaming the pre-recorded videos as well as helping and moderating the Q&A sessions. They will also be responsible for security and be ready to react to potential threats and wrongdoers.

This year there will be only one broadcast for each session, but the workshop day will be quite long. There will be six sessions, lasting one hour and a half, as well as a one hour keynote.

Duties

  • Moderating the text chats
  • Controlling microphones in the video-conferencing
  • Watching for the time
  • Performing sound checks
  • Welcoming and otherwise guiding participants

Accepted Presentations

Title
25 years of OCaml
OCaml
A Multiverse of Glorious Documentation
OCaml
File Attached
Adapting the OCaml ecosystem for Multicore OCaml
OCaml
File Attached
Binary Analysis Platform (BAP). Using Universal Algebra and Tagless-Final Style for Developing Representation-Agnostic Frameworks
OCaml
File Attached
Continuous Benchmarking for Ocaml Projects
OCaml
Deductive Verification of Realistic OCaml Code
OCaml
Digodoc and Docs
OCaml
Experiences with Effects
OCaml
File Attached
From 2n+1 to n
OCaml
File Attached
GopCaml: A Structural Editor for OCaml
OCaml
File Attached
Leveraging Formal Specifications to Generate Fuzzing Suites
OCaml
Love: a readable language interpreted by a blockchain
OCaml
OCaml and Python: Getting the Best of Both Worlds
OCaml
Opam-bin: Binary Packages with Opam
OCaml
File Attached
Parafuzz: Coverage-guided Property Fuzzing for Multicore OCaml programs
OCaml
Media Attached File Attached
Probabilistic resource limits, or: Programming with interrupts in OCaml
OCaml
Property-Based Testing for OCaml through Coq
OCaml
Safe Protocol Updates via Propositional Logic
OCaml
Semgrep, a fast, lightweight, polyglot, static analysis tool to find bugs
OCaml
File Attached
Wibbily Wobbly Timey Camly
OCaml