SQL, OpenOffice: would a JDBC driver for SPARQL protocol make sense?

I’d like to have access to my SPARQL data from desktop tools like OpenOffice’s spreadsheet. Apparently it can talk to remote databases via JDBC and OBDBC, both for the spreadsheet and database tools within OpenOffice. Many years ago, pre-SPARQL, I hassled Libby into making her Squish RDF query system talk JDBC. There have been related […]

Microblogs and the monolingual

Twitter-like microblogging seems a nice granularity for following thoughts expressed in languages you don’t speak. In 1988 I passed my French language GCSE exam; it’s been downhill all the way since. A year ago in Argentina, I got to the stage where I could just about express myself in Spanish. But it’s been fading. Nevertheless […]

Commandline PHP for loading RDF URLs into ARC (and Twinkle for query UI)

#!/usr/bin/php <?php if ($argc != 2 || in_array($argv[1], array(‘–help’, ‘-help’, ‘-h’, ‘-?’))) { ?> This is a command line PHP script with one option: URL of RDF document to load <?php } else { $supersecret = “123rememberme”; #Security analysts recommend using data of birth + social security ID here # *** be careful with real […]

Querying across ‘social graph’ fragments

PREFIX : <http://xmlns.com/foaf/0.1/> PREFIX owl: <http://www.w3.org/2002/07/owl#> SELECT DISTINCT ?who ?src WHERE { GRAPH <http://xmlns.com/foaf/spec/index.rdf> { ?p a owl:InverseFunctionalProperty . } GRAPH <http://danbri.org/foaf.rdf> { [ :openid <http://danbri.org/> ; ?p ?pv ] } GRAPH ?src { [ ?p ?pv ; :knows [ :name ?who ] ] } } ORDER BY ?who Just a quick post to record […]

Amazon EC2: My 131 cents

Early this afternoon, I got it into my head to try out Amazon’s “Elastic Compute Cloud” (EC2) service. I’m quite impressed. The bill so far, after some playing around, is 1.31 USD. I’ve had the default “getting started” Fedora Linux box up and running for maybe 7 hours, as well as trying out machine images […]

20Q +/- 2

I was just revisiting 20q.net, reminded after seeing the ontogame site. The latter starts with a Wikipedia/dbpedia concept, and asks you to classify it according to some ontological criteria, I think drawn from Proton. The former (neural-net based I think) lets uses supply random concepts, and when needed provide distinguishing yes/no characteristics. I wish all […]

Lost the plot

I made this with the trial version of I Can Animate, a stop-motion package for MacOSX that leans towards the schools/education market. I was impressed at how easily I got up and running: just plugged an Isight into my old PowerBook and pointed it at the table (which was white, and didn’t help the Isight […]

Chocolate Teapot

Michael Sparks in the BBC Backstage permathread on DRM: However any arguments based on open standards do need to take facts into account though. Such as this one: The BBC is currently required by the rights holders to use DRM. Tell me how you can have a DRM system that’s completely free software, and I’ll […]

Shadows on the Web

This is a quick note, inspired by the recent burst of posts passing through Planet RDF about RDF, WebArch and a second “shadow” Web. Actually it’s not about that thread at all, except to note that Ian Davis asks just the right kind of questions when thinking about the WebArch claim that the Web ships […]

HTML Imagemap authoring tool for MacOSX?

I’ve searched around in vain for one. I want to annotate my FOAF spec diagram with mouseover text and links into the documentation. Most of the tools I find are a decade or more old, or pay-to-play. I remember the Gimp image editor can do imagemaps, but it crashes on startup on my MacBook. I […]

planetplanet foafrolls

The PlanetPlanet feed reader (and the Venus variant) exposes its blogroll via RDF/FOAF, typically at “/foafroll.xml” URIs. I ran through the list of Planet installations from the main site, and found the following, which might be interesting for experimentation, crawling, whitelist work etc. Or you could just make a giant feedlist and install Venus yourself, […]

FOAF diagram (day 2)

FOAF diagram (day 2) Originally uploaded by danbri Another revision, after feedback from Ivan. The original had “Thing” in italics (a convention I tried before adding in doap: dc: and sioc: references), to indicate it was from another namespace. I’ve now made that heritage explicit (although I suspect it might confuse, the idea is pretty […]