RDF Dataset Notifications

Like many people in the RDF community I've been thinking about the issue of syndicating updates to RDF datasets. If we want to support truly distributed aggregation and processing of data then we need an efficient way to share updates. There's been a lot of experimentation around different mechanisms, and PubSubHubbub seems to be a … Continue reading RDF Dataset Notifications →

Linked Data Patterns: a free book for practitioners

A few months ago Ian Davis and I were chatting about some new approaches to helping practitioners climb the learning curve around Linked Data, RDF and related technologies. We were both keen to help communicate the value of Linked Data, share knowledge amongst practitioners, and to encourage the community to converge on best practices. We … Continue reading Linked Data Patterns: a free book for practitioners →

A Tour of the OS 50k Gazetteer Linked Data

The Ordnance Survey have today published the first in a series of open datasets. In addition to the administrative geography that was published last year, the Linked Data available from data.ordnancesurvey.co.uk now includes data from their 1:50 000 Scale Gazetteer. In this blog post I thought I'd post an overview of the dataset to summarise … Continue reading A Tour of the OS 50k Gazetteer Linked Data →

Enhanced Descriptions: “Premium Linked Data”

I've had several conversations recently with people who are either interested in, or actually implementing Linked Data, and are struggling with some important questions How much data should I give away? If I wanted to charge for more than just the basic data, then how would I handle that? My usual response to the first … Continue reading Enhanced Descriptions: “Premium Linked Data” →

Predicate Based Services

sameAs.org is a great service on a number of different levels. It provides a much needed piece of Semantic Web infrastructure and it achieves that through a simple clean interface and API. You don't even need to know anything about RDF to get value from the service. In short it's one of those nice web … Continue reading Predicate Based Services →

Thoughts on Linked Data Business Models

Scott Brinker recently published a great blog post covering 7 business models for Linked Data. The post is well worth a read and reviews the potential for both direct and indirect revenue generation from a range of different business models. I've been thinking about these same issues myself recently so I'm pleased to see that … Continue reading Thoughts on Linked Data Business Models →

Rights Statements on the Web of Data

This is a write-up of my contribution to the Legal and Social Frameworks for Sharing Data on the web workshop at ISWC 2009 in October 2009. It was later published in Nodalitied magazine Issue 9. Why do we publish open data? It’s to allow other people to reuse it; to take it and do creative and … Continue reading Rights Statements on the Web of Data →

Thoughts on Enterprise Linked Data

There have been a number of discussions about "Enterprise Linked Data" recently, and I took part on a panel on precisely that topic at ESTC 2009. Unfortunately the panel was cut short due to time pressures so I didn't get chance to say everything I'd hoped. In lieu of that debate here's a blog post … Continue reading Thoughts on Enterprise Linked Data →

SPARQL Extension Function Survey Summary

This post contains the first set of results from my SPARQL extension survey. I've completed an initial survey of a number of different SPARQL processors to itemise the extension functions that each of them have implemented. This will be an ongoing activity as implementations evolve continually, but I thought it would be useful to summarise … Continue reading SPARQL Extension Function Survey Summary →

Approaches to Publishing Linked Data via Named Graphs

This is a follow-up to my previous post on managing RDF using named graphs. In that post I looked at the basic concept of named graphs, how they are used in SPARQL 1.0/1.1, and discussed RESTful APIs for managing named graphs. In this post I wanted to look at how Named Graphs can be used … Continue reading Approaches to Publishing Linked Data via Named Graphs →