Semantic Web General
- Ontology.org
Ontology.org is contributing to the development of XML-based Web-agent architectures by developing foundation ontologies and
asssociated XML schemas.
- Semantic Web Journal
ETAI (Electronic Transactions On Artificial Intelligence)
The area is concerned with Modeling Semantics of Web Information: Theory, Methods, and Applications. [...] This ETAI area
is targeted at all research efforts aimed at constructing, maintaining and using such a knowledge-intensive information and
service web.
- Semantic Web on XML
Tim Berners-Lee
Slides from his presentation at XML 2000 in Washington DC about his Semantic Web vision.
- SemanticWeb.org
Stanford University; University of Karlsruhe
- SWAG - Semantic Web Agreement Group
SWAG
SWAG is creating a strong infrastructure for the Semantic Web, whilst working with various members of the Web community to
ensure data interoperability. The SWAG Dictionary, a database of terms for the Semantic Web, is our first important project
to that end.
- The DARPA Agent Markup Language (DAML) Homepage
daml.org (NEW 19. July)
The DAML language is being developed as an extension to XML and the Resource Description Framework (RDF). The latest release
of the language (DAML+OIL) provides a rich set of constructs with which to create ontologies and to markup information so
that it is machine readable and understandable.
- The Semantic Web
Tim Berners-Lee; James Hendler; Ora Lassila; Scientific American (NEW 12. April)
Introductionary article to the semantic web: "A new form of Web content that is meaningful to computers will unleash a revolution
of new possibilities".
- The Semantic Web In Breadth
Aaron Swartz (NEW 12. August)
This piece speaks about the different parts of the Semantic Web and how they fit together.
- The Semantic Web: A Primer
Edd Dumbill; XML.com
The Semantic Web lies at the heart of Tim Berners-Lee's vision for the future of the World Wide Web. Along with others at
the W3C Berners-Lee is working on the infrastructure for this next stage of the Web's life. But the question "What is the
Semantic Web?" is being asked with increasing frequency.
- The Semantic Web: A Resource
Sean B. Palmer
"Furthering public knowledge about the Semantic Web" -- a page listing SW resources.
Learning RDF
- A logical Interpretation of RDF
Conen, Wolfram; Klapsnig, Reinhold
"This paper seeks to express the concepts and constraints of the RDF model in first-order logic."
- An introduction to RDF: Exploring the standard for Web-based metadata
Uche Ogbuji; IBM developerWorks
This article introduces Resource Description Framework (RDF), developed by the W3C for Web-based metadata, using XML as an
interchange syntax. RDF's essential aim is to make work easier for autonomous agents, which would refine the Web by improving
search engines and service directories. Author Uche Ogbuji gives an overview of RDF aspects from schemas to usage scenarios.
- RDF tutorial
Pierre-Antoine Champin
"The first section will describe the RDF model, which is its fundamental syntax. The second section will present the semantic
aspects of RDF, the concepts and the corresponding vocabulary. The last section will describe the XML syntax."
- The RDF Schema Specification revisited
Nejdl, Wolfgang; Wolpers, Martin; Capelle, Christian
"In this paper, we will discuss the proposed recommendation (March 1999) for an RDF Schema Specification and compare the approach
taken in this specification to conventional meta data models."
RDF Miscellaneous
- Adding formal semantics to the Web - building on top of RDF Schema
Jeen Broekstra; Michel Klein; Stefan Decker; Dieter Fensel; Ian Horrocks
The paper shows "how RDF Schema can be extended in such a way that a full knowledge representation language can be expressed in
it, thus enriching it with the required additional expressivity and the semantics of this language."
- Contexts for RDF Information Modelling
Graham Klyne; Content Technologies Ltd.
This memo describes some experimental work that is being undertaken with the goal of simplifying the application of RDF to
a number of information modelling problems, particularly involving relationships between physical-world objects and trust
modelling. It is our goal that, by using contexts, a degree of modularity can be introduced that will ease the construction
of RDF information models.
- Dublin Core Metadata Initiative
Dublin Core Metadata Initiative
The Dublin Core is a metadata element set intended to facilitate discovery of electronic resources. Originally conceived for
author-generated description of Web resources, it has attracted the attention of formal resource description communities such
as museums, libraries, government agencies, and commercial organizations.
- Representing UML in RDF
Sergey Melnik
The goal of this work is to make UML "RDF-compatible". This allows mixing and extending UML models and the language elements
of UML itself on the Web in an open manner. XMI, the current standard for encoding UML in XML by OMG, does not offer this
capability. It is based upon a hard-wired DTD.
- Research notebook: On edge-labelled graphs in XML
Dan Brickley
This document serves as an informal survey of XML applications that adopt an edge-labelled graph data model similar to that
used in W3C's Resource Description Framework (RDF).
- Resource Description Framework (RDF)
The XML Cover Pages
A collection of resources about RDF.
RDF Frameworks
- RDF API Draft
Sergey Melnik
This is a draft of an RDF API provided for a public discussion. The API defines interfaces for parsing (org.w3c.rdf.syntax)
and accessing RDF models as sets of statements (org.w3c.rdf.model).
- Redland - An RDF Application Framework
Redland is a library that provides a high-level interface for RDF allowing the model to be stored, queried and manipulated.
Redland implements each of the RDF model concepts in its own class so provides an object based API for them.
- WRAF - Web Resource Application Framework
Wraf implements a RDF API. The purpose is to enable the construction of applications that fully uses the RDF data model in
order to realize the Semantic Web.
Artificial Intelligence
- Conceptual Graphs
John F. Sowa
Conceptual graphs (CGs) are a system of logic based on the existential graphs of Charles Sanders Peirce and the semantic networks
of artificial intelligence. They express meaning in a form that is logically precise, humanly readable, and computationally
tractable.
Learning Topic Maps
- Topic Maps
4 papers at the Granada 1999 XML Conference
- TopicMap.com
Murray Woodman
- TopicMaps.com
epolis (Bertelsmann Mohn Media Group)
The site contains some general information including links to publications etc. and is also targeted at presenting the empolis
product k42 for Topic Map authoring and navigation.
- TopicMaps.org
TopicMaps.org
Topicmaps.Org is an independent consortium of parties interested in developing the applicability of the Topic Maps Paradigm
to the World Wide Web, by leveraging the XML family of specifications as required.
© XML entity, 2000-2002
created 12.08.2002 17:16:45
