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[ontolog-forum] Prolog + CHR (Constraint Handling Rules) for "Big Data"

To: "'[ontolog-forum] '" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: John F Sowa <sowa@xxxxxxxxxxx>
Date: Fri, 22 Feb 2013 08:17:39 -0500
Message-id: <51276FF3.80006@xxxxxxxxxxx>
Adrian Walker sent me the URL of a presentation about using Prolog
and Constraint Handling Rules to support large-scale applications:    (01)

    http://dtai.cs.kuleuven.be/CHR/files/Elston_SecuritEase.pdf    (02)

Coincidentally, I received the CFP below about a workshop on CHR.    (03)

As this presentation shows, Prolog + CHR is a highly scalable platform
that can support major applications.  The Semantic Web ignored this
technology because it is not decidable.  But that is also true of
every major programming language and computational system.    (04)

The Experian credit bureau is a very large corporation, which uses
Prolog to check everybody's credit worthiness.  They use it so heavily
that they bought Prologia, the company founded by Alain Colmerauer,
who implemented the first version of Prolog.    (05)

But Experian is also a secretive company that doesn't tell anybody
what they do or how they do it.  Nevertheless, their size shows that
Prolog and related logic-programming methods scale to "Big Data".    (06)

The CHR notation compiles into Prolog.  For more info and freely
downloadable software, see    (07)

    http://www.swi-prolog.org/man/chr.html    (08)

John Sowa    (09)

-------- Original Message --------
Subject: CFP: 10th CHR Workshop in Berlin, July 2013 / Constraint 
Handling Rules
Date: Fri, 22 Feb 2013 12:11:43 +0000
From: Henning Christiansen <henning@xxxxxx>    (010)

=========================================================================    (011)

                            Call for Papers
      Tenth International Workshop on Constraint Handling Rules
                               CHR 2013    (012)

                 Berlin (Germany), July 11-12th, 2013
          (co-located with the 3rd Intl Summer School on CHR)    (013)

=========================================================================    (014)

The CHR 2013 Workshop will be held on July 11th and 12th, 2013 in Berlin
(Germany) at the occasion of the 3rd International Summer School on CHR.
More information on the venue and the co-located summer school can be
found on the summer school website (http://met.guc.edu.eg/CHR2013/).    (015)

The Constraint Handling Rules (CHR) language has become a major declara-
tive specification formalism and implementation language for constraint
reasoning algorithms and applications. Algorithms specified using infe-
rence rules, rewrite rules, sequents, proof rules, or logical axioms can
often be directly written in CHR. Its clean semantics facilitates pro-
gram design, analysis, and transformation. For more information, please
visit the CHR website (http://dtai.cs.kuleuven.be/CHR/).    (016)

The aim of the CHR workshop series is to stimulate and promote interna-
tional research and collaboration on topics related to the CHR language.
The workshop is a lively, friendly forum for presenting and discussing
new results, interesting applications, and work in progress.
Previous Workshops on Constraint Handling Rules were organized in 2004
in Ulm (Germany), in 2005 in Sitges (Spain) at ICLP, in 2006 in Venice
(Italy) at ICALP, in 2007 in Porto (Portugal) at ICLP, in 2008 in Hagen-
berg (Austria) at RTA, in 2009 in Pasadena (California, US) at ICLP, in
2010 in Edinburgh (Scotland, UK) at ICLP, in 2011 in Cairo (Egypt), at
the 2nd CHR summer school, and in 2012 in Budapest (Hungary) at ICLP.    (017)

Topics of Interest    (018)

The workshop calls for full papers and short papers describing ongoing
work on any aspect of CHR and related approaches. The following topics
are relevant (this list is non-exhaustive):    (019)

  - (Logical) Algorithms
  - Applications
  - Constraint Solvers
  - Critical Assessment
  - Expressiveness and Complexity
  - Implementations and Optimization
  - Language Extensions (Types, Modules,...)
  - Mutual inspiration from related areas such as
    Answer Set Programming, (Term) Rewriting Systems, ...
  - Program Analysis
  - Program Transformation and Generation
  - Programming Environments (Debugging)
  - Programming Pearls
  - Programming Tools
  - Retractable Constraints
  - Semantics
  - System Descriptions    (020)

Important dates    (021)

  - Paper submission deadline: May 8th, 2013
  - Notification of acceptance: June 8th, 2013
  - Final version due: June 23rd, 2013
  - Workshop date: July 11th and 12th, 2013    (022)

Submission Information    (023)

The two categories for submissions are:    (024)

   - full papers for describing technically sound, innovative ideas that
     can advance the state of the art of CHR;    (025)

   - short papers, for ongoing work not yet ready for full publication
     and research project overviews.    (026)

All papers must describe original, previously unpublished research, and
must not simultaneously be submitted for publication elsewhere.
They must be written in English. Technical papers must not exceed 15
pages. The limit for short papers is 8 pages, as is the standard page
limit for application papers, and system and tool papers. However,
particularly strong contributions in the latter two areas may be
submitted as technical paper as well.    (027)

All papers must be in the Springer LNCS format. General information
about the Springer LNCS series and the LNCS authors' instructions are
available at the Springer LNCS home page
(http://www.springer.com/computer/lncs?SGWID=0-164-7-72376-0).    (028)

Submissions must be made via the EasyChair submission system, available
at http://www.easychair.org/conferences/?conf=chr2013    (029)

Programme Committee    (030)

  - Slim Abdennadher, German University of Cairo, Egypt
  - María Alpuente, UPV, Spain
  - Henning Christiansen, Roskilde University, Denmark (co-chair)
  - Marina De Vos, University of Bath, UK
  - François Fages, INRIA Rocquencourt, France
  - Thom Frühwirth, University of Ulm, Germany
  - Maurizio Gabbrielli, University of Bologna, Italy
  - Marco Gavanelli, University of Ferrara, Italy
  - Rémy Haemmerlé, Technical University of Madrid, Spain
  - Michael Maher, University of New South Wales, Canberra, Australia
  - Thierry Martinez, INRIA Paris-Rocquencourt, France
  - Maria Chiara Meo, Gabriele d'Annunzio University, Italy
  - Eric Monfroy, UTFSM and LINA, Chile/France
  - Tom Schrijvers, Ghent University, Belgium
  - Jon Sneyers, KU Leuven, Belgium (co-chair)
  - Armin Wolf, Fraunhofer FIRST, Germany    (031)

Workshop Coordinators    (032)

Contact: chr2013@xxxxxxxxxxxxx    (033)

Henning Christiansen
Department of Communication, Business and Information Technologies,
Roskilde University, Denmark
http://www.ruc.dk/~henning/    (034)

Jon Sneyers
Department of Computer Science, KU Leuven, Belgium
http://people.cs.kuleuven.be/~jon.sneyers/    (035)

Steering committee:    (036)

Thom Frühwirth
Programmiermethodik und Compilerbau, Ulm University, Germany
http://www.informatik.uni-ulm.de/pm/mitarbeiter/fruehwirth/    (037)

Slim Abdennadher
Department of Computer Science & Engineering, German University in Cairo
http://met.guc.edu.eg/staff/slim_abdennadher.aspx    (038)

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