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Etymon Systems, Inc.
Amberfish is general purpose text retrieval software, developed at Etymon by Nassib Nassar and distributed as open source software under the terms of version 2 of the GNU General Public License (GPL). Its distinguishing features are indexing/search of semi-structured text (i.e. both free text and multiply nested fields), built-in support for XML documents using the Xerces library, structured queries allowing generalized field/tag paths, hierarchical result sets (XML only), automatic searching across multiple databases (allowing modular indexing), TREC format results, efficient indexing, and relatively low memory requirements during indexing (and the ability to index documents larger than available memory). Z39.50 support is available. Other features include Boolean queries, right truncation, phrase searching, relevance ranking, support for multiple documents per file, incremental indexing, and easy integration with other UNIX tools. The architecture is also designed to permit proximity queries; however, they are not fully implemented at present.
SKOS Simple Knowledge Organization System Reference
This document is the normative specification of the Simple Knowledge Organization System. It is intended for readers who are involved in the design and implementation of information systems, and who already have a good understanding of Semantic Web techno
SKOS Simple Knowledge Organization System Primer
In basic SKOS, conceptual resources (concepts) are identified with URIs, labeled with strings in one or more natural languages, documented with various types of note, semantically related to each other in informal hierarchies and association networks, and
MindRaider - Semantic Web Outliner
In order to use MindRaider efficiently you must change your stereotypes. Instead of making dozens of isolated documents, create all your personal remarks (notes, sketches) directly in MindRaider. Thus you will have all your thoughts organized into one com
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In order to use MindRaider efficiently you must change your
stereotypes. Instead of making dozens of isolated documents, create all your
personal remarks (notes, sketches) directly in MindRaider. Thus you will have all your thoughts organized into one
complex MindMap, that will enable you to tag, navigate, search, combine,
reuse and find your ideas quickly.
Samizdat: Co-op Engine
Samizdat is a generic RDF-based engine for building collaboration and open publishing web sites. Samizdat provides users with means to cooperate and coordinate on all kinds of activities, including media activism, resource sharing, education and research,
MOAT: Meaning Of A Tag | moat-project.org
While tags are widely used in Web 2.0 services, their lack of machine-understandable meaning can be a problem for information retrieval. Especially people can use tags that have different meanings depending on the context (e.g.: "apple"), but can also use different tags to express the same thing (e.g.: "semweb", "semantic_web"). Moreover, as tags as not related to each other, finding content might be an issue, especially to browse the long tail.
MOAT aims to solve this by providing a way for users to define meaning(s) of their tag(s) using URIs of Semantic Web resources (such as URIs from DBpedia, geonames ... or any knowledge base). Thanks to those relationships between tags and URIs of existing concepts, they can annotate content with those URIs rather than free-text tags, leveraging content into Semantic Web, by linking data together. This means modeling facts such as "In this blog post, I use the tag "apple" and I refer to <http://dbpedia.com/resource/Apple_Records>, not the fruit nor the computer brand". Moreover, these tag meanings can be shared between people, providing an architecture of participation to define and exchange meanings of tags (as URIs) within a community of users.
Knoodl
Knoodl facilitates community-oriented development of OWL based ontologies and RDF knowledgebases. It also serves as a semantic technology platform, offering a service based interface so that communities can build their own semantic applications using thei
Redland RDF Libraries
Redland is a set of free software C libraries that provide support for the Resource Description Framework (RDF). language APIs to Redland in Perl, PHP, Python and Ruby
Edelweiss:Sewese
Sewese is a JSP/Servlet environment built upon Corese engine to provide a set of primitives to build interfaces for queries, edition and navigation, and for the management of the transverse functions of a portal (presentation, internationalization, securi
openRDF.org: Home
Welcome to OpenRDF.org, a community site to support the development of Sesame. Sesame is an open source framework for storage, inferencing and querying of RDF data. Here, developers and users can meet and discuss, ask questions and submit problem reports
Trust in Web-based Social Networks: A Project in Social AI - Trust in Web-based Social Networks: A Project in Social AI
The trust ontology is a small ontology, written on OWL/RDF, that allows people to say how much they trust other people. It extends the large, and very popular FOAF Vocabulary/Ontology.
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Trust Scale: Trust in this ontology is rated on a scale from 1 -
10. A rating of 10 signifies absolute trust, and a rating of 1 signifies
no trust. Medium trust would be about a 5. There is no notion of explicit
distrust in this ontology because of the way it complicates inferences
(e.g. if A distrusts B and B distrusts C, should that mean that A trusts C
more than B or less?)
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