Call for Talks: Haskell Implementors' Workshop

Ningning Xie xnningxie at
Mon Mar 22 11:48:37 UTC 2021

                             Call for Talks
               ACM SIGPLAN Haskell Implementors' Workshop

                         Virtual, 22 Aug, 2021

                      Co-located with ICFP 2021

Important dates

Deadline:       Wednesday, 30 June, 2021 (AoE)
Notification:   Wednesday, 14 July, 2021
Workshop:       Sunday, 22 August, 2021

The 13th Haskell Implementors' Workshop is to be held alongside ICFP
2021 this year virtually. 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
open spaces in the timetable and room for ad-hoc discussion, demos,
and lightning short talks.

Scope and target audience

It is important to distinguish the Haskell Implementors' Workshop from
the Haskell Symposium which is also co-located with ICFP 2021. 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.

The Implementors' Workshop is an ideal place to describe a Haskell
extension, describe works-in-progress, demo a new Haskell-related tool,
or even propose future lines of Haskell development. Members of the
wider Haskell community encouraged to attend the workshop -- we need
your feedback to keep the Haskell ecosystem thriving. Students working
with Haskell are specially encouraged to share their work.

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


We invite proposals from potential speakers for talks and
demonstrations. We are aiming for 20-minute talks with 5 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 lightning talks session. These have been very well
received in recent years, and we aim to increase the time available to
them. Lightning talks be ~7mins and are scheduled on the day of the
workshop. Suggested topics for lightning talks are to present a single
idea, a work-in-progress project, a problem to intrigue and perplex
Haskell implementors, or simply to ask for feedback and collaborators.


Due to the on-going COVID-19 situation, ICFP (and, consequently, HIW)
will be held remotely this year. However, the organizers are still
working hard to provide for a great workshop experience.

While we are sad that this year will lack the robust hallway track that
is often the highlight of HIW, we believe that this remote workshop
presents a unique opportunity to include more of the Haskell community
in our discussion and explore new modes of communicating with our
colleagues. We hope that you will join us in making this HIW as
vibrant as any other.

Program Committee

  * Dominique Devriese (Vrije Universiteit Brussel)
  * Daan Leijen (Microsoft Research)
  * Andres Löh (Well-Typed LLP)
  * Julie Moronuki (Typeclass Consulting)
  * John Wiegley (DFINITY)
  * Ningning Xie (the University of Hong Kong)
  * Edward Z. Yang (Facebook AI Research)


  * Ningning Xie <xnning at>
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