Calais is a web service that uses natural language processing (NLP) technology to semantically tag text that is input to the service. The tags are delivered to the user who can then incorporate them into other applications - for search, news aggregation, blogs, catalogs, you name it.
SMOB is a distributed / decentralised microblogging system built on RDF and Semantic Web technologies, mainly SIOC and FOAF. Currently, we have simple prototypes of a publishing and an aggregating service, less than 100 lines of PHP code each.
The Resource Description Framework RDF allows you to describe web documents and resources from the real world—people, organisations, things—in a computer-processable way. Publishing such descriptions on the web creates the semantic web. URIs are very important as the link between RDF and the web. This article presents guidelines for their effective use. We discuss two strategies, called 303 URIs and hash URIs. We give pointers to several web sites that use these solutions, and briefly discuss why several other proposals have problems.
The Semantic Web, a knowledge-centric model for the Web's future, supplements human-readable documents and XML message formats with data that can be understood and processed by machines. SPARQL Protocol and RDF Query Language (SPARQL) is to the semantic Web as SQL is to a relational database. It allows applications to make sophisticated queries against distributed RDF databases, and is widely supported by many competing frameworks. This tutorial demonstrates its use through the example of a team tracking and journaling system for a virtual company.
Linked Data is about using the Web to connect related data that wasn't previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. More specifically, Wikipedia defines Linked Data as "a term used to describe a recommended best practice for exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF."
Twitter2RDF. An RDF exporter for Twitter microblogs has been created that uses SIOC (for the microblog entries) and FOAF (for describing the people). For example, here are representations of Twitter microblogs for two users: captsolo and johnbreslin.
<p>Natasha Lloyd unveiled an application she has built using OpenAmplify. According to Natasha, "Overall, I am impressed with OpenAmplify for two reasons. One, it provides a valuable service for free, and two, it uses a community model. Rather than building applications themselves, the OpenAmplify team provides the tools for other people to do it."</p>...
The main supposition of the project is that tags specified by blogs' authors in their blog posts are associated between each other. Our tag spider runs over blogs feeds, gathers the set of tags from each blog post and then combines tag pairs from the set of tags.
MUSING delivers next-generation knowledge management solutions and services to enable perceptive business intelligence activities, directly at the End-Users premises. By applying innovative technological solutions, MUSING provides exclusive services for three business intelligence application areas:
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