TL;DR: Talk proposal deadline for HOPE 2025 is on May 29, 2025.
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HOPE 2025
The 13th ACM SIGPLAN Workshop on
Higher-Order Programming with Effects
October 12, 2025
Singapore
(the day before ICFP 2025)
https://conf.researchr.org/home/icfp-splash-2025/hope-2025
HOPE 2025 aims to bring together researchers interested in the design,
semantics, implementation, and verification of higher-order effectful
programs. It will be *informal*, consisting of invited talks, contributed talks
on work in progress, and open-ended discussion sessions.
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Call for Talk Proposals
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We solicit proposals for contributed talks. We recommend preparing proposals of
at most 2 pages excluding references, in either plain text or PDF
format. However, we will accept longer proposals or submissions to other
conferences, under the understanding that PC members are only expected to read
the first two pages of such longer submissions. When submitting talk proposals,
authors should specify how long a talk the speaker wishes to give. By default,
contributed talks will be 30 minutes long, but proposals for shorter or longer
talks will also be considered. Speakers may also submit supplementary material
(e.g. a full paper, talk slides) if they desire, which PC members are free (but
not expected) to read.
We are interested in talks on all topics related to the interaction of
higher-order programming and computational effects. Talks about work in progress
are particularly encouraged. If you have any questions about the relevance of a
particular topic, please contact the PC chairs, Guilhem Jaber
(guilhem.ja...@inria.fr) and Taro Sekiyama (tsekiy...@acm.org).
Deadline for talk proposals: May 29, 2025 (Thursday)
Notification of acceptance: June 26, 2025 (Thursday)
Workshop: October 12, 2025 (Sunday)
The submission website is now open:
https://hope25.hotcrp.com
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Workshop Organization
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Program Committee:
William J. Bowman (University of British Columbia)
Zeinab Galal (University of Bologna)
Justin Hsu (Cornell University)
Guilhem Jaber (Nantes Université)
Danielle Marshall (University of Glasgow)
Alexandre Moine (New York University)
Takahiro Sanada (Fukui Prefectural University)
Taro Sekiyama (National Institute of Informatics)
Yahui Song (National University of Singapore)
Leo White (Jane Street)
Yizhou Zhang (University of Waterloo)
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Goals of the Workshop
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A recurring theme in many papers at ICFP, and in the research of many ICFP
attendees, is the interaction of higher-order programming with various kinds of
effects: storage effects, I/O, control effects, concurrency, etc. While effects
are of critical importance in many applications, they also make code harder to
build, maintain, and reason about. Higher-order languages (both functional and
object-oriented) provide a variety of abstraction mechanisms to help “tame” or
“encapsulate” effects (e.g. monads and handlers, ADTs, ownership types,
typestate, first-class events, transactions, Hoare Type Theory, session types,
substructural and region-based type systems), and a number of different semantic
models and verification technologies have been developed in order to codify and
exploit the benefits of this encapsulation (e.g. bisimulations, step-indexed
Kripke logical relations, higher-order separation logic, game semantics, various
modal logics). But there remain many open problems, and the field is highly
active.
The goal of the HOPE workshop is to bring researchers from a variety of
different backgrounds and perspectives together to exchange new and exciting
ideas concerning the design, semantics, implementation, and verification of
higher-order effectful programs.
We want HOPE to be as informal and interactive as possible. The program will
thus involve a combination of invited talks, contributed talks about work in
progress, and open-ended discussion sessions. There will be no published
proceedings, but participants will be invited to submit working documents, talk
slides, etc., to be made available online.
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