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;

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

Keynotes: This year will feature two keynotes:

• Mary Sheeran, of Chalmers University, will present Gender Equality in Academia: Meeting the Challenge on Thursday, 22 August. Slides available online

• Lennart Augustsson and Satnam Singh, both of Google Research, will co-present Haskell Use and Abuse at Scale on Friday, 23 August.

Timing survey: Please take this one question survey.

Accepted Papers

Call for Papers

NEW THIS YEAR: This year features a lightweight double-blind reviewing process. See further information below.

The ACM SIGPLAN Haskell Symposium 2019 will be co-located with the 2019 International Conference on Functional Programming (ICFP).

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;

• 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.

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.

Submission Details

Early and Regular Track

The Haskell Symposium uses a two-track submission process so that some papers can gain early feedback. Strong papers submitted to the early track are accepted outright, and the others will be given their reviews and invited to resubmit to the regular track. Papers accepted via the early and regular tracks are considered of equal value and will not be distinguished in the proceedings. Although all papers may be submitted to the early track, authors of functional pearls and experience reports are particularly encouraged to use this mechanism. The success of these papers depends heavily on the way they are presented, and submitting early will give the program committee a chance to provide feedback and help draw out the key ideas.

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, and demo proposals should be labelled clearly as such.

Lightweight Double-blind Reviewing

Haskell Symposium 2019 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
• 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

Early track:

• Submission deadline: 15 March 2019 (Fri)
• Notification: 19 April 2019 (Fri)

Regular track and demos:

• Submission deadline: 10 May 2019 (Fri)
• Notification: 21 June 2019 (Fri)

Camera-ready deadline for accepted papers:

• 30 June 2019 (Sun)

Deadlines are valid 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).

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://haskell19.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 are free to upload both 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 principal editor 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.

Travel Support

Student attendees with accepted papers can apply for a SIGPLAN PAC grant to help cover travel expenses. PAC also offers other support, such as for child-care expenses during the meeting or for travel costs for companions of SIGPLAN members with physical disabilities, as well as for travel from locations outside of North America and Europe. For details on the PAC program, see its web page (http://pac.sigplan.org).

Proceedings

Accepted papers will be included in the ACM Digital Library. Authors must grant ACM publication rights upon acceptance (http://authors.acm.org/main.html). Authors are encouraged to publish auxiliary material with their paper (source code, test data, etc.); they retain copyright of auxiliary material.

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

All accepted papers and proposals will be posted on the conference website one week before the meeting.

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.