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EYE [1] is a reasoning engine supporting the Semantic Web layers [2].
It performs controlled chaining and it supports Euler paths [3].
Via N3 [4] it is interoperable with Cwm [5].
[1] http://eulersharp.sourceforge.net/README
[2] http://www.w3.org/DesignIssues/diagrams/sweb-stack/2006a
[3] http://mathworld.wolfram.com/KoenigsbergBridgeProblem.html
[4] http://www.w3.org/TeamSubmission/n3/
[5] http://www.w3.org/2000/10/swap/doc/cwm
A Database System for Metamodeling and Method Engineering
ConceptBase.cc is a multi-user deductive and object-oriented database system for metamodeling and method engineering. Includes a graphical client that builds upon the logic-based features of the ConceptBase.cc server. The data model is O-Telos.
ConceptBase.cc can represent information at the data level (example data, traces of process executions etc.), the class level (schemas, process definitions etc.), the metaclass level (constructs of modeling languages), the meta-metaclass level...
Flora-2 is a powerful knowledge representation and reasoning system designed for building knowledge-intensive applications. It is based on F-logic, HiLog, Transaction Logic, and also supports defeasible reasoning. Applications include intelligent agents, Semantic Web, ontology management, and more.
If you use Flora-2 and like it, please acknowledge it in your project!
Artificial Intelligence techniques applied to common software tasks, using First Order Logic; N3, OWL ontologies and rules. Enables component-based application building, platform independence, user-friendliness. Leverage on Euler inference engine + GUI.
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A lightweight IDE for Artificial Intelligence. Started as GUI for the Euler reasoning engine. The sources can be N3, RDF, OWL, UML, eCore, plain XML or XSD, files or URL's. Wraps Drools (or CWM, FuXi) as N3 rules engines. Model based app. generation.
A 100% Java Warren Abstract Machine implementation.
jWAM is a 100% Java Warren Abstract Machine implementation. Currently it is still under development though all the basic functionalities (compiling, resolution) are working. As far as I know this is the only open source Java based implementation out there that does not simplify Warren's design.
I have done some comparison's with other Java based Prolog engine's and jWAM does seem to outperform them all quite well (tuProlog, JLog, JIP, jTrolog). However, if you need a Java based Prolog engine for your project I recommend tuProlog and jTrolog as they are at the moment way more mature than jWAM.
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MARGO (Multiattribute ARGumentation framework for Opinion explanation), written in Prolog, is the engine developed in the ArguGRID project for decision making.
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Implemented in Flora-2/XSB, F-OWL is an inference engine for the standard Web Ontology Language OWL. A set of Java API is provided for applications to assert and query OWL ontology statements.
A group of systems for building network-oriented intelligent agents, consisting an agent communications infrastructure, April - an agent construction programming language, Go! - a logic programming language and DialoX - an XML-based user interface engine
EPromote is an Eclipse plugin that allows to define model transformations of EMF-based models with Prolog. EPromote stands for "Eclipse Prolog MOdel Transformation Engine".
A pure java based prolog engine. This is a fork of the OpenSource Kernel Prolog from Paul Tarau (BinNet Corp.).
This project was abandoned in favor of GNU Prolog for Java: http://www.gnu.org/software/gnuprologjava/
reputron is a knowledge extraction engine platform that covers all aspect of text mining, relevance, indexing and querying on a corpus of text documents.