- ARCHIVE / Information Architecture
- Ontospy v. 1.6.7
A new and improved version of OntoSpy (1.6.7) is available online. OntoSpy is a lightweight Python library and command line tool for inspecting and visualizing vocabularies encoded in the RDF family of languages. This update includes support for Python 3, plus various other improvements that make it easier to query semantic web vocabularies using OntoSpy’s […]
- Nature.com Subjects Stream Graph
The nature.com subjects stream graph displays the distribution of content across the subject areas covered by the nature.com portal. This is an experimental interactive visualisation based on a freely available dataset from the nature.com linked data platform, which I’ve been working on in the last few months. The main visualization provides an overview of selected […]
- Another experiment with Wittgenstein’s Tractatus
- Is wikipedia a valid source of scientific knowledge?
Is wikipedia a valid source of scientific knowledge? Many would say yes. Others are still quite skeptical, or maybe just cautious about it. What seems to be the case though – and this is what this post is about – is that wikipedians are increasingly including references to scientific literature, and when they do it […]
- Italian public spending data: a review
The Italian government recently announced a new portal containing data on public spending: http://soldipubblici.gov.it. This is obviously great news; the website is still in beta though so in what follows I’d like to put forward a few (hopefully constructive) comments and desires for how it could/should be developed further. Incidentally, I recently ran into Ian […]
- An interactive Turtle shell
Wouldn’t it be nice to have an interactive environment where you quickly hack together an RDF model and then show it to your clients or colleagues in a more accessible format – i.e. a diagram? Don’t know if there’s anything like that already, but the other day while polishing up the OntosPy library I’ve taken […]
- How to visualize a big taxonomy within a single webpage?
Here’s a couple more experiments aimed at representing visually a large taxonomy. Some time ago I looked at ways to visualise a medium-large taxonomy (3000 terms circa) using one of the many visualisation kits out there. It turned out that pretty much all of them can’t handle that many terms, but there are other strategies […]
- Nature.com subject pages available online!
Subject pages are pages that aggregate content from across nature.com based on the tagging of that content by NPG subject ontology terms. After six months of work on this project we’ve finally launched the first release of the site, which is reachable online at http://www.nature.com/subjects. Hooray! This has been a particularly challenging experience cause I’ve […]
- Creating useful classifications with taxonomies (part 1)
Taxonomies and other classification schemes are omnipresent in Information Architecture. In this post I’ve tried to gather a few ideas on the topic, with the aim of clarifying the issue a little, and maybe help constructing more useful taxonomies. Comments and suggestions are welcome as usual! It recently occurred to me though that there is […]
- Messing around wih D3.js and hierarchical data
These days there are a lot of browser-oriented visualization toolkits, such d3.js or jit.js. They’re great and easy to use, but how much do they scale when used with medium-large or very large datasets? The subject ontology is a quite large (~2500 entities) taxonomical classification developed at Nature Publishing Group in order to classify scientific […]