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#acl FrancescoCalimeri:read,write,revert SusannaCozza:read,write,revert All:read #acl FrancescoCalimeri:read,write,revert,admin SusannaCozza:read,write,revert,admin All:read
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[[Anchor(TOC)]]
[[TableOfContents]]
''Important''

'''The DLV-EX project has migrated to [[http://www.mat.unical.it/dlv-complex|DLV-Complex]]. DLV-Complex is a very powerful ASP system, which, besides external predicates, explicitly supports (recursive) functions, sets, and lists, along with libraries for their manipulations.

##This page is the main reference for the external-predicate framework and utilities: you will find all necessary tools for developing your own predicates in the [[#download|download]] section. Nevertheless, we strongly recommend to refer to the [[http://www.mat.unical.it/dlv-complex|DLV-Complex]] page for binaries, news and updates.'''

If you want, you can still download the last versions of DLV-EX binaries available and some libraries, in the [[#download|download]] section, but please note that the DLV-EX project is no longer maintained, thus no new releases/updates are scheduled in the future. For new releases, other important events and full documentation regarding DLV-COMPLEX please refer to the [[http://www.mat.unical.it/dlv-complex|DLV-Complex]] page.'''
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attachment:new.gif New version available ([#download April 26th, 2006]) attachment:new.gif
<<Anchor(TOC)>>
<<TableOfContents>>
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[[Anchor(project)]] <<Anchor(project)>>
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DLV-EX is an Answer Set Programming System extending [[http://www.dlvsystem.com|DLV]] by External Predicates, which features a framework aimed at enabling ASP to deal with external sources of computation. This feature is realized by the introduction of “parametric” external predicates, whose extension is not specified by means of a logic program but implicitly computed through external code. It is explicitly addressed the issue of invention of new information coming from external predicates, in form of new, and possibly infinite, constant symbols.
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DLV-EX is an Answer Set Programming System extending [http://www.dlvsystem.com DLV] by External Predicates, which features a framework aimed at enabling ASP to deal with external sources of computation. This feature is realized by the introduction of “parametric” external predicates, whose extension is not specified by means of a logic program but implicitly computed through external code.
It is explicitly addressed the issue of invention of new information coming from external predicates, in form of new, and possibly infinite, constant symbols.
DLV-EX is based on the [[http://www.dlvsystem.com|DLV]] system.
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DLV-EX is based on the [http://www.dlvsystem.com DLV] system. If you designed a nice external predicate, tell [[mailto:dlv-ex@mat.unical.it|us]].
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If you designed a nice external predicate, tell [mailto:dlv-ex@mat.unical.it us]. [[#TOC|Top of Page]]
----
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[#TOC Top of Page]
----
[[Anchor(team)]]
<<Anchor(team)>>
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[http://www.mat.unical.it/calimeri Francesco Calimeri], [http://www.gibbi.com Giovambattista Ianni], [mailto:cozza@mat.unical.it Susanna Cozza]
[[http://www.mat.unical.it/calimeri|Francesco Calimeri]], [[http://www.gibbi.com|Giovambattista Ianni]], [[mailto:cozza@mat.unical.it|Susanna Cozza]]
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[[mailto:perri@mat.unical.it|Simona Perri]], [[http://www.wfaber.com|Wolfgang Faber]], [[http://www.pfeifer.com/gerald/|Gerald Pfeifer]], [[http://www.mat.unical.it/~leone/|Nicola Leone]]
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[http://www.wfaber.com Wolfgang Faber], [http://www.pfeifer.com/gerald/ Gerald Pfeifer], [http://www.mat.unical.it/~leone/ Nicola Leone] [[#TOC|Top of Page]]
----
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[#TOC Top of Page] <<Anchor(download)>>
= Download =
<<Anchor(libraries)>>
== Libraries ==
Some ready-made (compiled) dynamic libraries can be downloaded here. They have to be considered as "betas", since they are currently developed and tested. Feedbacks are useful and welcome, so please download them freely. For further information on how to exploit libraries have a look at the [[#docs|documentation]]. Please note that updates will be available later on, so come back to this page.
 * String Library, versions for: [[attachment:string_lib.so.tar.gz|linux]] - [[attachment:string_lib.zip|windows]] and [[attachment:string_lib.htm|related documentation]].
 * Integers Library, versions for: [[attachment:math_N_v1.so.tar.gz|linux]] - [[attachment:math_N_v1.zip|windows]] and [[attachment:math_N_v1.htm|related documentation]].
 * Reals Library, versions for: [[attachment:math_R_v1.so.tar.gz|linux]] - [[attachment:math_R_v1.zip|windows]] and [[attachment:math_R_v1.htm|related documentation]].

<<Anchor(utilities)>>
== Utilities ==
''DEBT'' - We have developed an integrated command-line environment aimed at helping in testing external built-ins predicates. This may be very useful for users who define their own built-ins. DEBT can be downloaded [[attachment:debt.tar.gz|here]], and it is gathered with its related [[attachment:BuiltinTestToolUSERMANUAL.pdf|documentation]].

<<Anchor(latestVersion)>>
== Latest Version ==
'''This is an OLD version of the system, which is no longer maintained.'''
 * [[attachment:dl-ex.20080729.linux|Linux i386, 32bit]] (Latest version [[#history|July 28th, 2008]]).
 * [[attachment:dl-ex.20080729.win.exe|windows 32bit]] (Latest version [[#history|July 28th, 2008]]).
Please have a look at the [[#history|notes]] below. You may also want to have a look at [[attachment:benchmarks.html|some benchmarks]].

[[#TOC|Top of Page]]
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[[Anchor(download)]]
= Download =
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DLV-EX is actively developed. To receive notifications about new releases and other important events regarding DLV-EX, just have a look at this page, or drop us a note [mailto:dlv-ex@mat.unical.it here]. <<Anchor(relatedWork)>>
= Related Works =
It is worth noting that our work shares many aspects with the work carried out by Thomas Eiter, Giovambattista Ianni, Roman Schindlauer, and Hans Tompits. They introduce HEX programs, which are nonmonotonic logic programs admitting higher-order atoms as well as external atoms, and extend the answer-set semantics accordingly. A web page with a prototype and some references is available [[http://con.fusion.at/dlvhex/|here]].
 * [[http://www.mat.unical.it/dlv-complex|DLV-Complex]] is a very powerful ASP system, which, besides external predicates, explicitly supports (recursive) functions, sets, and lists, along with libraries for their manipulations. '''The DLV-EX project is actually moving to DLV-Complex'''.
 * [[http://www.dlvsystem.com|DLV]] is the system into which DLV-EX is implemented.
 * [[http://dlt.gibbi.com/|DLT]] is an extension to the DLV system providing reusable template predicate definitions. It is maintained by members of the DLV team from Università della Calabria.
 * [[http://www.kr.tuwien.ac.at/staff/roman/dlvhex|DLV-HEX]] features "second order" external predicates taking relational input an returning relational output, as well as higher order atoms. It allows DLT as a pre-parser.
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Please always use the most current version of DLV-EX (cf. [#history version history]). You may also want to have a look at [attachment:benchmarks.html some benchmarks]. [[#TOC|Top of Page]]
----
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[[Anchor(latestVersion)]]
== Latest Version ==

We offer a command-line version in binary form for

 * [attachment:dl-ex.20060426.linux.tar.gz i386-linux-elf-static] (Latest version [#history April 26th, 2006]).

(please have a look at the notes below). We plan to release binaries for other platforms as soon as an official release will be ready.

Notes: Please note that the ''.tar.gz'' archive consists of the executable plus a folder, namely ''"LIB"'', containing headers and scripts needed in order to create new External Builtins libraries. For further information, have a look at the [#docs documentation].

== Libraries ==

Some (compiled) dynamic libraries can be downloaded here. They have to be considered as "betas", since they are currently developed and tested. Feedbacks are useful and welcome, so please download them freely. For further information on how to exploit libraries have a look at the [#docs documentation]. Please note that updates will be available later on, so come back to this page.

 * [attachment:string_lib.so.tar.gz String Library (linux)] and [attachment:string_lib.htm related documentation].
 * [attachment:math_N.so.tar.gz Integers Library (linux)] and [attachment:math_N.htm related documentation].
 * [attachment:math_R.so.tar.gz Reals Library (linux)] and [attachment:math_R.htm related documentation].

== Utilities ==

''DEBT'' - We have developed an integrated command-line environment aimed at helping in testing external built-ins predicates. This may be very useful for users who define their own built-ins. DEBT can be downloaded [attachment:debt.tar.gz here], and it is gathered with its related [attachment:BuiltinTestToolUSERMANUAL.pdf documentation].

[#TOC Top of Page]
----
[[Anchor(docs)]]
= Documentation & Examples =

We provide an [attachment:usermanual.html online manual] and an [attachment:tutorial.html online tutorial]; they are updated accordingly to the evolution of the system, so check them periodically.

For a full documentation on DLV please check the official [http://www.dlvsystem.com web page].

[#TOC Top of Page]
----
[[Anchor(relatedWork)]]
= Related Works =

It is worth noting that our work shares many aspects with the work carried out by Thomas Eiter, Giovambattista Ianni, Roman Schindlauer, and Hans Tompits. They introduce HEX programs, which are nonmonotonic logic programs admitting higher-order atoms as well as external atoms, and extend the answer-set semantics accordingly. A web page with a prototype and some references is available [http://con.fusion.at/dlvhex/ here].

 * [http://www.dlvsystem.com DLV] is the system into which DLV-EX is implemented.

 * [http://dlt.gibbi.com/ DLT] is an extension to the DLV system providing reusable template predicate definitions. It is maintained by members of the DLV team from Università della Calabria.

 * [http://www.kr.tuwien.ac.at/staff/roman/dlvhex DLV-HEX] features "second order" external predicates taking relational input an returning relational output, as well as higher order atoms. It allows DLT as a pre-parser.

[#TOC Top of Page]
----
[[Anchor(history)]]
<<Anchor(history)>>
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 * April 26th, 2006 attachment:new.gif  * July 29th, 2008
Release a full version for Windows. Bugfixes.
This is supposed to be the last release. The project is moving to [[http://www.mat.unical.it/dlv-complex|DLV-Complex]].
 * April 26th, 2006
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[#TOC Top of Page] [[#TOC|Top of Page]]
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[[Anchor(publications)]] <<Anchor(publications)>>
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[1] F. Calimeri, S. Cozza, G. Ianni, "External Sources of Knowledge and Value Invention in Logic Programming", Annals of Mathematics and Artificial Intelligence, 2007, to appear. [attachment:cali-etal-AMAI-2007.pdf PDF] [1] F. Calimeri, S. Cozza, G. Ianni, "External Sources of Knowledge and Value Invention in Logic Programming", Annals of Mathematics and Artificial Intelligence, 2007, to appear. [[attachment:cali-etal-AMAI-2007.pdf|PDF]]
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[attachment:jelia06.pdf PDF] [[attachment:jelia06.pdf|PDF]]
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[attachment:lpnmr05.pdf PDF] [[attachment:lpnmr05.pdf|PDF]]
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[#TOC Top of Page] [[#TOC|Top of Page]]
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__''[mailto:dlv-ex@mat.unical.it dlv-ex@mat.unical.it]''__ __''[[mailto:dlv-ex@mat.unical.it|dlv-ex@mat.unical.it]]''__


Important

The DLV-EX project has migrated to DLV-Complex. DLV-Complex is a very powerful ASP system, which, besides external predicates, explicitly supports (recursive) functions, sets, and lists, along with libraries for their manipulations.

If you want, you can still download the last versions of DLV-EX binaries available and some libraries, in the download section, but please note that the DLV-EX project is no longer maintained, thus no new releases/updates are scheduled in the future. For new releases, other important events and full documentation regarding DLV-COMPLEX please refer to the DLV-Complex page.



DLV-EX: The Project

DLV-EX is an Answer Set Programming System extending DLV by External Predicates, which features a framework aimed at enabling ASP to deal with external sources of computation. This feature is realized by the introduction of “parametric” external predicates, whose extension is not specified by means of a logic program but implicitly computed through external code. It is explicitly addressed the issue of invention of new information coming from external predicates, in form of new, and possibly infinite, constant symbols.

DLV-EX is based on the DLV system.

If you designed a nice external predicate, tell us.

Top of Page


The Team

Core

Francesco Calimeri, Giovambattista Ianni, Susanna Cozza

Former team members

Adriana Pietramala (student), Maria Carmela Santoro (student)

Prompters and helpers

Simona Perri, Wolfgang Faber, Gerald Pfeifer, Nicola Leone

Top of Page


Download

Libraries

Some ready-made (compiled) dynamic libraries can be downloaded here. They have to be considered as "betas", since they are currently developed and tested. Feedbacks are useful and welcome, so please download them freely. For further information on how to exploit libraries have a look at the documentation. Please note that updates will be available later on, so come back to this page.

Utilities

DEBT - We have developed an integrated command-line environment aimed at helping in testing external built-ins predicates. This may be very useful for users who define their own built-ins. DEBT can be downloaded here, and it is gathered with its related documentation.

Latest Version

This is an OLD version of the system, which is no longer maintained.

Please have a look at the notes below. You may also want to have a look at some benchmarks.

Top of Page


Related Works

It is worth noting that our work shares many aspects with the work carried out by Thomas Eiter, Giovambattista Ianni, Roman Schindlauer, and Hans Tompits. They introduce HEX programs, which are nonmonotonic logic programs admitting higher-order atoms as well as external atoms, and extend the answer-set semantics accordingly. A web page with a prototype and some references is available here.

  • DLV-Complex is a very powerful ASP system, which, besides external predicates, explicitly supports (recursive) functions, sets, and lists, along with libraries for their manipulations. The DLV-EX project is actually moving to DLV-Complex.

  • DLV is the system into which DLV-EX is implemented.

  • DLT is an extension to the DLV system providing reusable template predicate definitions. It is maintained by members of the DLV team from Università della Calabria.

  • DLV-HEX features "second order" external predicates taking relational input an returning relational output, as well as higher order atoms. It allows DLT as a pre-parser.

Top of Page


History

  • July 29th, 2008

Release a full version for Windows. Bugfixes. This is supposed to be the last release. The project is moving to DLV-Complex.

  • April 26th, 2006

Bugfixes and speedups. Support for VI-restricted programs implemented.

  • September 28th, 2005

"Beta" version, much improved. Carries many bugfixes and improvements.

  • March 28th, 2005

First stable version, even if still a "beta".

  • October 17th, 2004

First working version, experimental.

  • Previous versions

...did not carry a real version identification.

Top of Page


Selected Publications

[1] F. Calimeri, S. Cozza, G. Ianni, "External Sources of Knowledge and Value Invention in Logic Programming", Annals of Mathematics and Artificial Intelligence, 2007, to appear. PDF

[2] F. Calimeri, S. Cozza, G. Ianni, "Decidable fragments of Logic Programming with Value Invention", Proceedings of the 10th European Conference on Logics in Artificial Intelligence (JELIA'06) in Logics in Artificial Intelligence, Lecture Notes in Computer Science (LNCS), v. 4160, pp. 95-110, September 2006, Liverpool, UK, Springer Verlag, GmbH Tiergartenstrasse 17, 69121, Heidelberg Germany, ISBN 3-540-39625-X. PDF

[3] F. Calimeri, G. Ianni, "External sources of computation for Answer Set Solvers", Proceedings of the 8th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR'05), Diamante, Italy, 5-8 September 2005, Springer Verlag. PDF

Top of Page


dlv-ex@mat.unical.it

mwiki: dlvex (last edited 2018-01-16 11:46:00 by FrancescoCalimeri)