HaskellImplementorsWorkshop/2015/Call for Contributions

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Call for Contributions: ACM SIGPLAN Haskell Implementors' Workshop

Vancouver, Canada, 30 August, 2015

Co-located with ICFP 2015, http://www.icfpconference.org/icfp2015/

Important dates

  • Proposal Deadline: Monday, 3 August, 2015 Tuesday, 4 August, 2015 (midnight, anywhere on earth)
  • Notification: Monday, 10 August, 2015
  • Workshop: Sunday, 30 August, 2015


The 7th Haskell Implementors' Workshop is to be held alongside ICFP 2015 this year in Vancouver. It is a forum for people involved in the design and development of Haskell implementations, tools, libraries, and supporting infrastructure, to share their work and discuss future directions and collaborations with others.

Talks and/or demos are proposed by submitting an abstract, and selected by a small program committee. There will be no published proceedings; the workshop will be informal and interactive, with a flexible timetable and plenty of room for ad-hoc discussion, demos, and impromptu short talks.

Attendance figures clearly reflect the growth of the Haskell user community and a constant interest in implementation aspects.

Scope and target audience

It is important to distinguish the Haskell Implementors' Workshop from the Haskell Symposium which is also co-located with ICFP 2015. The Haskell Symposium is for the publication of Haskell-related research. In contrast, the Haskell Implementors' Workshop will have no proceedings -- although we will aim to make talk videos, slides and presented data available with the consent of the speakers.

In the Haskell Implementors' Workshop, we hope to study the underlying technology. We want to bring together anyone interested in the nitty-gritty details behind turning plain-text source code into a deployed product. Having said that, members of the wider Haskell community are more than welcome to attend the workshop -- we need your feedback to keep the Haskell ecosystem thriving.

The scope covers any of the following topics. There may be some topics that people feel we've missed, so by all means submit a proposal even if it doesn't fit exactly into one of these buckets:

  • Compilation techniques
  • Language features and extensions
  • Type system implementation
  • Concurrency and parallelism: language design and implementation
  • Performance, optimisation and benchmarking
  • Virtual machines and run-time systems
  • Libraries and tools for development or deployment


At this stage we would like to invite proposals from potential speakers for talks and demonstrations. We are aiming for 20 minute talks with 10 minutes for questions and changeovers. We want to hear from people writing compilers, tools, or libraries, people with cool ideas for directions in which we should take the platform, proposals for new features to be implemented, and half-baked crazy ideas. Please submit a talk title and abstract of no more than 300 words.

Submissions should be made via HotCRP. The website is:


We will also have a lightning talks session which will be organised on the day. These talks will be 5-10 minutes, depending on available time. Suggested topics for lightning talks are to present a single idea, a work-in-progress project, a problem to intrigue and perplex Haskell implementers, or simply to ask for feedback and collaborators.


  • Christopher Brown (St. Andrews University)
  • Richard Eisenberg (University of Pennsylvania)
  • Edward Kmett (S&P Capital IQ)
  • Hans-Wolfgang Loidl (Heriot-Watt University)
  • Trevor L. McDonell (Indiana University)
  • Deian Stefan (Stanford University)
  • Josef Svenningsson - chair (Chalmers University of Technology)

Contact: Josef Svenningsson <josef.svenningsson at chalmers.se>