ICFP 2022
Sun 11 - Fri 16 September 2022 Ljubljana, Slovenia

Update: submit proposals for Friday demos and/or discussions here!

The Haskell Symposium presents original research on Haskell, discusses practical experience and future development of the language, and promotes other forms of declarative programming.

The Haskell Symposium will be held in same format as ICFP 2022: most likely, as a hybrid event The dates for the symposium are 15-16 September, 2022.

Note: this website has the same content as this one.

Topics of interest include:

  • Language design, with a focus on possible extensions and modifications of Haskell as well as critical discussions of the status quo;

  • Theory, such as formal semantics of the present language or future extensions, type systems, effects, metatheory, and foundations for program analysis and transformation;

  • Implementations, including program analysis and transformation, static and dynamic compilation for sequential, parallel, and distributed architectures, memory management, as well as foreign function and component interfaces;

  • Libraries, that demonstrate new ideas or techniques for functional programming in Haskell;

  • Tools, such as profilers, tracers, debuggers, preprocessors, and testing tools;

  • Applications, to scientific and symbolic computing, databases, multimedia, telecommunication, the web, and so forth;

  • Functional Pearls, being elegant and instructive programming examples;

  • Experience Reports, to document general practice and experience in education, industry, or other contexts;

  • Tutorials, to document how to use a particular language feature, programming technique, tool or library within the Haskell ecosystem

  • System Demonstrations, based on running software rather than novel research results.

Dates
Plenary
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Thu 15 Sep

Displayed time zone: Belgrade, Bratislava, Budapest, Ljubljana, Prague change

08:00 - 09:00
RegistrationCatering & social at Foyer 2
08:00
60m
Registration
Registration
Catering & social

09:00 - 10:30
Keynote IHaskell at Kosovel
Chair(s): Richard A. Eisenberg Jane Street
09:20
10m
Day opening
Welcome
Haskell
Nadia Polikarpova University of California at San Diego
09:30
60m
Keynote
Cause and Effect(s): Towards a More Programmable Haskell
Haskell
Rob Rix GitHub, Inc.
10:30 - 11:00
Coffee breakCatering & social at Foyer 2
10:30
30m
Coffee break
Coffee break
Catering & social

11:00 - 12:30
VerificationHaskell at Kosovel
Chair(s): Wouter Swierstra Utrecht University, Netherlands
11:00
30m
Talk
Coinduction Inductively: Mechanizing Coinductive Proofs in Liquid Haskell
Haskell
Lykourgos Mastorou National Technical University of Athens, Nikolaos Papaspyrou National Technical University of Athens, Niki Vazou IMDEA Software Institute
11:30
30m
Talk
How to Safely Use Extensionality in Liquid Haskell
Haskell
Niki Vazou IMDEA Software Institute, Michael Greenberg Stevens Institute of Technology
12:00
30m
Talk
Liquid Proof Macros
Haskell
Henry Blanchette , Niki Vazou IMDEA Software Institute, Leonidas Lampropoulos University of Maryland, College Park
12:30 - 14:00
12:30
90m
Lunch
Lunch
Catering & social

14:00 - 15:30
ApplicationsHaskell at Kosovel
Chair(s): Satnam Singh Groq
14:00
30m
Talk
A Totally Predictable Outcome: An Investigation of Traversals of Infinite Structures
Haskell
Gershom Bazerman Arista Networks
14:30
30m
Talk
Open Transactional Actions: Interacting with non-transactional resources in STM Haskell
Haskell
Jonathas Augusto de Oliveira Conceição Universidade Federal de Pelotas, André Rauber Du Bois Universidade Federal de Pelotas, Gerson Cavalheiro Universidade Federal de Pelotas, Samuel Feitosa Universidade Federal da Fronteira Sul, Rodrigo G. Ribeiro Federal University of Ouro Preto
15:00
30m
Talk
Staging Regular Expressions with Moore Cayley Fusion
Haskell
Jamie Willis Imperial College London, Nicolas Wu Imperial College London, Tom Schrijvers KU Leuven
15:30 - 16:00
Coffee breakCatering & social at Foyer 2
15:30
30m
Coffee break
Coffee break
Catering & social

16:00 - 17:30
GHC ProposalsHaskell at Kosovel
Chair(s): Joachim Breitner Epic Games
16:00
90m
Live Q&A
GHC Proposal Presentations
Haskell
S: Joachim Breitner Epic Games , Gergo Erdi Standard Chartered Bank, Andreas Klebinger , Matthías Páll Gissurarson Chalmers University of Technology, Sweden
File Attached
17:30 - 20:00
Industrial receptionCatering & social at Foyer 2
17:30
2h30m
Social Event
Industrial reception
Catering & social

Fri 16 Sep

Displayed time zone: Belgrade, Bratislava, Budapest, Ljubljana, Prague change

08:00 - 09:00
RegistrationCatering & social at Foyer 2
08:00
60m
Registration
Registration
Catering & social

09:00 - 10:30
Keynote IIHaskell at Kosovel
Chair(s): Simon Peyton Jones Epic Games
09:30
60m
Keynote
Industrial Strength Laziness: What's Next?
Haskell
David Thrane Christiansen The Haskell Foundation
10:30 - 11:00
Coffee breakCatering & social at Foyer 2
10:30
30m
Coffee break
Coffee break
Catering & social

11:00 - 12:30
Compiler and ExtensionsHaskell at Kosovel
Chair(s): Marco Vassena Utrecht University
11:00
30m
Talk
Investigating Magic Numbers: Improving the Inlining Heuristic in the Glasgow Haskell Compiler
Haskell
Celeste Hollenbeck University of Edinburgh, Michael F. P. O'Boyle University of Edinburgh, Michel Steuwer University of Edinburgh
11:30
30m
Talk
Partial Type Constructors in Practice
Haskell
Apoorv Ingle University of Iowa, Alex Hubers The University of Iowa, J. Garrett Morris The University of Iowa
12:00
30m
Talk
Reasonable Agda is Correct Haskell: Writing Verified Haskell using agda2hs
Haskell
Jesper Cockx TU Delft, Lucas Escot TU Delft, Orestis Melkonian University of Edinburgh, James Chapman Input Output, Ulf Norell Gothenburg University
Pre-print File Attached
12:30 - 14:00
OCaml Industry LunchCatering & social at E2
12:30
90m
Social Event
OCaml Industry Lunch
Catering & social

12:30 - 14:00
12:30
90m
Lunch
Lunch
Catering & social

14:00 - 15:30
Embedded DSLsHaskell at Kosovel
Chair(s): James Koppel Massachusetts Institute of Technology, USA
14:00
30m
Talk
Embedded Pattern Matching
Haskell
Trevor L. McDonell Utrecht University, Joshua D. Meredith IOHK, Gabriele Keller Utrecht University
14:30
30m
Demonstration
Eiger: Auditable, executable, flexible legal regulations
Haskell
Alexander Bernauer PricewaterhouseCoopers Switzerland, Richard A. Eisenberg Jane Street
15:00
30m
Day closing
PC Chair Report
Haskell
Nadia Polikarpova University of California at San Diego
15:30 - 16:00
Coffee breakCatering & social at Foyer 2
15:30
30m
Coffee break
Coffee break
Catering & social

16:00 - 17:30
Demos + DiscussionsHaskell at Kosovel
Chair(s): Nadia Polikarpova University of California at San Diego
16:00
90m
Meeting
Demos
Haskell
Matthías Páll Gissurarson Chalmers University of Technology, Sweden, Makoto Hamana Gunma University, Japan, David Thrane Christiansen The Haskell Foundation, Jesper Cockx TU Delft, Lisa Vasilenko IMDEA Software Institute, Orestis Melkonian University of Edinburgh

Call for Papers

The ACM SIGPLAN Haskell Symposium 2022 will be co-located with the 2022 International Conference on Functional Programming (ICFP).

Differently from previous years, Haskell’22 will use a single-track submission process (that is, we will only have the regular track and no early track).

The Haskell Symposium presents original research on Haskell, discusses practical experience and future development of the language, and promotes other forms of declarative programming.

Topics of interest include:

  • Language design, with a focus on possible extensions and modifications of Haskell as well as critical discussions of the status quo;

  • Theory, such as formal semantics of the present language or future extensions, type systems, effects, metatheory, and foundations for program analysis and transformation;

  • Implementations, including program analysis and transformation, static and dynamic compilation for sequential, parallel, and distributed architectures, memory management, as well as foreign function and component interfaces;

  • Libraries, that demonstrate new ideas or techniques for functional programming in Haskell;

  • Tools, such as profilers, tracers, debuggers, preprocessors, and testing tools;

  • Applications, to scientific and symbolic computing, databases, multimedia, telecommunication, the web, and so forth;

  • Functional Pearls, being elegant and instructive programming examples;

  • Experience Reports, to document general practice and experience in education, industry, or other contexts;

  • Tutorials, to document how to use a particular language feature, programming technique, tool or library within the Haskell ecosystem;

  • System Demonstrations, based on running software rather than novel research results.

Regular papers should explain their research contributions in both general and technical terms, identifying what has been accomplished, explaining why it is significant, and relating it to previous work, and to other languages where appropriate.

Experience reports and functional pearls need not necessarily report original academic research results. For example, they may instead report reusable programming idioms, elegant ways to approach a problem, or practical experience that will be useful to other users, implementers, or researchers. The key criterion for such a paper is that it makes a contribution from which other Haskellers can benefit. It is not enough simply to describe a standard solution to a standard programming problem, or report on experience where you used Haskell in the standard way and achieved the result you were expecting.

Like an experience report and a functional pearl, tutorials should make a contribution from which other Haskellers can benefit. What distinguishes a tutorial is that its focus is on explaining an aspect of the Haskell language and/or ecosystem in a way that is generally useful to a Haskell audience. Tutorials for many such topics can be found online; the distinction here is that by writing it up for formal review it will be vetted by experts and formally published.

System demonstrations should summarize the system capabilities that would be demonstrated. The proposals will be judged on whether the ensuing session is likely to be important and interesting to the Haskell community at large, whether on grounds academic or industrial, theoretical or practical, technical, social or artistic. Please contact the program chair with any questions about the relevance of a proposal.

If your contribution is not a research paper, please mark the title of your experience report, functional pearl, tutorial or system demonstration as such, by supplying a subtitle (Experience Report, Functional Pearl, Tutorial Paper, System Demonstration).

Submission Details

Formatting

Submitted papers should be in portable document format (PDF), formatted using the ACM SIGPLAN style guidelines. Authors should use the acmart format, with the sigplan sub-format for ACM proceedings. For details, see:

http://www.sigplan.org/Resources/Author/#acmart-format

It is recommended to use the review option when submitting a paper; this option enables line numbers for easy reference in reviews.

Functional pearls, experience reports, tutorials and demo proposals should be labelled clearly as such.

Lightweight Double-blind Reviewing

Haskell Symposium 2022 will use a lightweight double-blind reviewing process. To facilitate this, submitted papers must adhere to two rules:

  1. Author names and institutions must be omitted, and
  2. References to authors’ own related work should be in the third person (e.g., not “We build on our previous work” but rather "We build on the work of ").

The purpose of this process is to help the reviewers come to an initial judgment about the paper without bias, not to make it impossible for them to discover the authors if they were to try. Nothing should be done in the name of anonymity that weakens the submission or makes the job of reviewing the paper more difficult (e.g., important background references should not be omitted or anonymized). In addition, authors should feel free to disseminate their ideas or draft versions of their paper as they normally would. For instance, authors may post drafts of their papers on the web or give talks on their research ideas.

A reviewer will learn the identity of the author(s) of a paper after a review is submitted.

Page Limits

The length of submissions should not exceed the following limits:

  • Regular paper: 12 pages
  • Functional pearl: 12 pages
  • Tutorial: 12 pages
  • Experience report: 6 pages
  • Demo proposal: 2 pages

There is no requirement that all pages are used. For example, a functional pearl may be much shorter than 12 pages. In all cases, the list of references is not counted against these page limits.

Deadlines

  • Abstract submission: 27 May 2022 (Fri)
  • Paper submission: 3 June 2022 (Fri)
  • Notification: 1 July 2022 (Fri)

Deadlines are anywhere on Earth.

Submission

Submissions must adhere to SIGPLAN’s republication policy (http://sigplan.org/Resources/Policies/Republication/), and authors should be aware of ACM’s policies on plagiarism (https://www.acm.org/publications/policies/plagiarism). Program Committee members are allowed to submit papers, but their papers will be held to a higher standard.

The paper submission deadline and length limitations are firm. There will be no extensions, and papers violating the length limitations will be summarily rejected.

Papers should be submitted through HotCRP at:

https://haskell22.hotcrp.com/

Improved versions of a paper may be submitted at any point before the submission deadline using the same web interface.

Supplementary material: Authors have the option to attach supplementary material to a submission, on the understanding that reviewers may choose not to look at it. This supplementary material should not be submitted as part of the main document; instead, it should be uploaded as a separate PDF document or tarball. Supplementary material should be uploaded at submission time, not by providing a URL in the paper that points to an external repository. Authors can distinguish between anonymized and non-anonymized supplementary material. Anonymized supplementary material will be visible to reviewers immediately; non-anonymized supplementary material will be revealed to reviewers only after they have submitted their review of the paper and learned the identity of the author(s).

Resubmitted Papers: authors who submit a revised version of a paper that has previously been rejected by another conference have the option to attach an annotated copy of the reviews of their previous submission(s), explaining how they have addressed these previous reviews in the present submission. If a reviewer identifies him/herself as a reviewer of this previous submission and wishes to see how his/her comments have been addressed, the conference chair will communicate to this reviewer the annotated copy of his/her previous review. Otherwise, no reviewer will read the annotated copies of the previous reviews.

Proceedings

Accepted papers will be included in the ACM Digital Library. Their authors will be required to choose one of the following options:

  • Author retains copyright of the work and grants ACM a non-exclusive permission-to-publish license (and, optionally, licenses the work with a Creative Commons license);
  • Author retains copyright of the work and grants ACM an exclusive permission-to-publish license;
  • Author transfers copyright of the work to ACM.

For more information, please see ACM Copyright Policy (http://www.acm.org/publications/policies/copyright-policy) and ACM Author Rights (http://authors.acm.org/main.html).

Accepted proposals for system demonstrations will be posted on the symposium website but not formally published in the proceedings.

Publication date: The official publication date of accepted papers is the date the proceedings are made available in the ACM Digital Library. This date may be up to two weeks prior to the first day of the conference. The official publication date affects the deadline for any patent filings related to published work.

Artifacts

Authors of accepted papers are encouraged to make auxiliary material (artifacts like source code, test data, etc.) available with their paper. They can opt to have these artifacts published alongside their paper in the ACM Digital Library (copyright of artifacts remains with the authors).

If an accepted paper’s artifacts are made permanently available for retrieval in a publicly accessible archival repository like the ACM Digital Library, that paper qualifies for an Artifacts Available badge (https://www.acm.org/publications/policies/artifact-review-badging#available). Applications for such a badge can be made after paper acceptance and will be reviewed by the PC chair.

If you have questions, please contact the chair at: npolikarpova@ucsd.edu

GHC Proposals session: Call for presentations

The Haskell language has always been a actively evolving language, and in the recent years, this has been given more structure by way of the GHC Steering Committee and the GHC proposal process. The Haskell Symposium wants to facilitate this process and this year dedicates one session to the dissemination and discussion of recent and current GHC proposals.

We therefore invite authors of GHC proposals and others to present a proposal and join the discussion. We welcome presentations advertising accepted proposals, advocating for presently discussed proposals or seeking feedback on fresh ideas alike.

There will be (up to) 9 slots with (at least) 10 minutes each. We suggest to keep the presentation short and leave ample time for a hopefully lively discussion. The session will happen on Thursday from 4pm to 5:30pm. Only in-person presentations, sorry.

To reserve a spot, simply send an email to Joachim Breitner mail@joachim-breitner.de with the proposal you want to discuss.

Questions? Use the Haskell contact form.