Callimachus - The leading Open Source platform for navigating, managing, and visualizing applications using the Web of Data.
Use Callimachus to create and deploy mobile and Web apps using Open data and enterprise content using Open Web standards. Data-driven applications made easy!
Open Sahara is a free webservice that can analyse, index and semantically enrich the content of documents, websites, and blogs.
Additionally, Open Sahara offers professional services for software development related to text-mining, indexing, kowledge extraction, semantic plugins and applications.
LOV, your entry point to the growing ecosystem of linked open vocabularies (RDFS or OWL ontologies) used in the Linked Data Cloud. Here you will find vocabularies listed and individually described by metadata, classified by vocabulary spaces, interlinked using the dedicated vocabulary VOAF.
You will enjoy querying the LOV dataset either at vocabulary level or at element level, exploring the vocabulary content using full-text faceted search, and finding metrics about the use of vocabularies in the Semantic Web.
Cytoscape is an open source software platform for visualizing complex-networks and integrating these with any type of attribute data. A lot of plugins are available for various kinds of problem domains, including bioinformatics, social network analysis, and semantic web.
CLAVIN (Cartographic Location And Vicinity INdexer) is an award-winning open source software package for document geotagging and geoparsing that employs context-based geographic entity resolution.
DERI Pipes: Open Source, Extendable, Embeddable Web Data Mashups
Inspired by Yahoo's Pipes, DERI Pipes is an engine and graphical environment for general Web Data transformations and Mashup.
Information Workbench for a World Where All Data is Linked!
Pursuing the goal to lower the entry barrier into the world of Linked Data and to leverage its benefits, the Information Workbench™ provides a Web-based open platform for Linked Data solutions in the enterprise.
This project aims to open up the semantic web to a wide audience through novel techniques that allow viewing and editing of semantic web representation languages in ordinary natural language, as opposed to the methods currently used, such as source coding or graphical interfaces, which require significant training.
Semantic MediaWiki (SMW) is a free, open-source extension to MediaWiki - the wiki software that powers Wikipedia - that lets you store and query data within the wiki's pages. Semantic MediaWiki is also a full-fledged framework, in conjunction with many spinoff extensions, that can turn a wiki into a powerful and flexible "collaborative database".
"OSF can integrate and manage all types of content - unstructured documents, semi-structured files, spreadsheets, and structured databases - using a variety of best-of-breed engines. All external content is converted to the canonical RDF data model, enabling common tools and methods for tagging and managing all content. Ontologies provide the schema and common vocabularies for integrating across diverse datasets."
"ReVerb is a program that automatically identifies and extracts binary relationships from English sentences. ReVerb is designed for Web-scale information extraction, where the target relations cannot be specified in advance and speed is important."
"Semantic MediaWiki (SMW) is a free, open-source extension to MediaWiki - the wiki software that powers Wikipedia - that lets you store and query data within the wiki's pages.
Semantic MediaWiki is also a full-fledged framework, in conjunction with many spinoff extensions, that can turn a wiki into a powerful and flexible knowledge management system. All data created within SMW can easily be published via the Semantic Web, allowing other systems to use this data seamlessly."
Metamaps.cc is a free and open source web platform for changemakers, innovators, educators and students. It enables individuals and communities to build and visualize their shared knowledge and unlock their collective intelligence.
"SolrTM is the popular, blazing fast open source enterprise search platform from the Apache LuceneTM project. Its major features include powerful full-text search, hit highlighting, faceted search, near real-time indexing, dynamic clustering, database integration, rich document (e.g., Word, PDF) handling, and geospatial search. Solr is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr powers the search and navigation features of many of the world's largest internet sites."
"Wandora is a general purpose information extraction, management and publishing application based on Topic Maps and Java. Topic maps are hypergraphs with an emphasis on subjects. Wandora stores information in layered and auto-merging topic maps. Wandora has graphical user interface, multiple visualization models, huge collection of information extraction, import and export options, embedded HTTP server with several output modules and open plug-in architecture. Wandora is a FOSS application with GNU GPL license. Wandora suits well for constructing and maintaining vocabularies, ontologies and information mashups. "