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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 ---- ''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available and some libraries, in the [[#download|download]] section, but please note that the DLV-EX project is no longer maintained, thus no new releases/updates are scheduled in the future.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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| '''The Project''' | <<Anchor(TOC)>> <<TableOfContents>> ---- <<Anchor(project)>> = DLV-EX: The Project = 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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| [[#TOC|Top of Page]] | |
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| '''The Team''' | <<Anchor(team)>> = The Team = == Core == [[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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| __Core__ Francesco Calimeri ([calimeri@mat.unical.it]), Giovambattista Ianni ([ianni@mat.unical.it]), Susanna Cozza ([cozza@mat.unical.it]) __Former team members__ |
== Former team members == |
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| __Prompters and helpers__ | == Prompters and helpers == [[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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| Wolfgang Faber, Gerald Pfeifer | [[#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]] ---- <<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. [[#TOC|Top of Page]] ---- <<Anchor(history)>> = History = * 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 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. [[#TOC|Top of Page]] ---- <<Anchor(publications)>> = 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. [[attachment:cali-etal-AMAI-2007.pdf|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. [[attachment:jelia06.pdf|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. [[attachment:lpnmr05.pdf|PDF]] [[#TOC|Top of Page]] ---- __''[[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.
Contents
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.
The Team
Core
Francesco Calimeri, Giovambattista Ianni, Susanna Cozza
Former team members
Adriana Pietramala (student), Maria Carmela Santoro (student)
Prompters and helpers
Wolfgang Faber, Gerald Pfeifer, Nicola Leone
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.
String Library, versions for: linux - windows and related documentation.
Integers Library, versions for: linux - windows and related documentation.
Reals Library, versions for: linux - windows and 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 here, and it is gathered with its related documentation.
Latest Version
This is an OLD version of the system, which is no longer maintained.
Linux i386, 32bit (Latest version July 28th, 2008).
windows 32bit (Latest version July 28th, 2008).
Please have a look at the notes below. You may also want to have a look at some benchmarks.
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.
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.
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