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ACCFun

ACCFun: Algorithmic Calculi for Constraint Functional Programming

(A "by invitation only"-workshop in the GRACeFUL project.)

The GRACeFUL project develops connections between functional and constraint programming, requiring a unified expression of programs, constraints, traditional numerical mathematical models and qualitative models. The members of the IFIP Working Group 2.1 on Algorithmic Languages and Calculi have developed a large body of expertise in the design of notations for calculating programs from specifications, covering all programming paradigms. Such a notation could provide the glue between functional and constraint programming, required in GRACeFUL. On the other hand, the various programs developed in GRACeFUL can provide a test-bed for the notation and suggest extensions or improvements to it. The aim of this workshop is to create a close connection between GRACeFUL and IFIP2.1. The workshop is co-located with the 73rd IFIP WG 2.1 meeting organised in Göteborg.

Main topics:

  • UniFormal
    • unified notation for programming languages
    • independent of paradigm
    • includes mathematical modelling
    • relationship between UniFormal and the description language of the *Global Constraint Catalog*
  • Relations
    • relational algebra as a bridge between functional and constraint programming
    • representing relations
      • in functional programming
      • in dependently-typed programming languages
    • set-based representations
  • Comprehensions
    • calculating with comprehensions
    • comprehensions to generalise qualitative models

Agenda:

Three "keynotes" and talks by the participants

  • keynote 1: A short introduction to GRACeFUL and its relation to IFIP2.1 (Cezar Ionescu)
  • keynote 2: "Fixing Nondeterminism" (Tom Schrijver)
  • keynote 3: A description of the main topics ("open problems")

Talks:

  • Day 1:
    • Cezar Ionescu, The GRACeFUL project (Monday, August 24, 2015, 10:45)
    • Conor McBride, Testing to reveal the absence of bugs (Monday, August 24, 2015, 11:01)
    • Florian Rabe, MMT - A Foundation-Independent Approach to Declarative Languages (Monday, August 24, 2015, 14:04)
    • Bernhard Möller, Antichain algebras (Monday, August 24, 2015, 16:07)
    • Walter Guttmann, Relation-algebraic verification of Prim's minimum spanning tree algorithm (Monday, August 24, 2015, 17:10)
  • Day 2:
    • Patrik Jansson + Cezar Ionescu, DSLM - Presenting Mathematical Analysis Using Functional Programming (Tuesday, August 25, 2015, 9:02)
    • Lennart Augustsson, Haskell types for a C++ relation library (Tuesday, August 25, 2015, 11:32)
    • Jeremy Gibbons, Comprehending monadic queries (Tuesday, August 25, 2015, 14:01)
    • Andres Löh, Datatype-generic data migrations (Tuesday, August 25, 2015, 16:00)
  • Day 3:
    • Tom Schrijvers, Fixing nondeterminsm (Wednesday, August 26, 2015, 9:04)
    • Jose N. Oliveira , Programming from Metaphorisms (Wednesdayday, August 26, 2015, 10:45)
    • Tom Schrijvers, From monoids to semirings (Wednesday, August 26, 2015, 11:39)
  • Day 4:
    • Tarmo Uustalu, Semirings and weighted nondeterminism (Thursday, August 27, 2015, 9:09)
    • Peter Höfner, Shapes (Thursday, August 27, 2015, 11:56)
    • Florian Rabe, MMT Tutorial (Thursday, August 27, 2015, 14:00)
    • Patrik Jansson, Open problems in GRACeFUL: causal loops and relational programming (Thursday, August 27, 2015, 16:00)
  • Day 5:
    • Cezar Ionescu, UniFormal: towards a European consortium
    • Tom Schrijvers, Syntax and semantics of hyper-distributions
    • Patrik Jansson, Report on GRACeFUL concept maps, causal loops and relational programming

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Page last modified on September 09, 2015, at 08:35 AM