Disqus - Friends of edumbill

Re: 5 Best Semantic Web Tools

Dave Beckett — Wed, 28 Dec 2005 17:29:54 -0000

Clearly I have an interest in this too :) but more interesting would be expansions on why you might choose a particular OWL reasoner as "best". From what I've read and heard so far, they all emphasise different things, do different sub/supersets of different OWL layers so comparison is rather multi-dimensional.
Do you really mean to say Pellet is the "most ... proprietary" or did I read that wrong? Pellet's the best RDFS and OWL editor for me.
Jena seems a strong peer of Sesame but isn't mentioned at all.
Maybe you could say what Java systems are below Pellet, SWOOP and the SPARQL frontend?

Re: Go West, but Where?

Dave Beckett — Tue, 27 Jun 2006 17:14:31 -0000

Congratulations, as I also relocated to work for Y recently, I also recommend Mountain View or Sunnyvale as good places to get your bearings. If you want to take public transport/free shuttle to work, MV has that.

Do ping me when you start.

Re: lca: Andrae Muys on RDF

Dave Beckett — Mon, 15 Jan 2007 14:57:44 -0000

I'm the author of the Redland RDF Libraries
and I work for Yahoo!'s
Media Group in Sunnyvale, California.

We're using RDF at the "data +
a little OWL" level for a bunch of things.
It's part of the backend of a couple of real and live sites - Yahoo! Food, Yahoo! TV, with several more coming soon. I mentioned this in Semantic Web Hype on my blog back in November.

RDF is being used for its flexible and dynamic linking of data and metadata along with graph-like query of the result. At present this is internal and you cannot see the RDF files on a yahoo site domain.

This quarter we are designing and coding for larger projects with a lot more triples, but that is not yet public.

Finally, Yahoo! has agreed to contribute some of the code changes to Redland made during this work back to the open source
Redland project.

Re: 2007 Semantic Technology Conference - Showcased Big Internet Potential

Dave Beckett — Mon, 28 May 2007 13:39:50 -0000

Although it's flattering you linked me direct to the wikipedia definition of RDF, that's not my home page :) Also, it was Yahoo Personal Finance, not the main finance site. The other one I forgot to mention in the keynote was tv.yahoo.com - oops.

Re: The Flickcurl Story

Dave Beckett — Mon, 30 Jun 2008 10:48:54 -0000

That's not a restriction of machine tags feature but (as I understand it) something that is done for all tags in Flickr. You can still search for that kind of tag.

Re: Redland RDF Libraries 1.0.8 released

Dave Beckett — Fri, 11 Jul 2008 10:41:06 -0000

Yes, but as I said, my Fedora Core 9 virtual machine was broken. I have subsequently made FC9 RPMs so I should upload them.

Re: Processing FOAF with C# / Using an RDF parser with FOAF

Dave Beckett — Fri, 18 Jul 2008 16:41:38 -0000

Looks like it moved to http://times.usefulinc.com/...

Re: Arthur Smith sings Leonard Cohen

Dave Beckett — Thu, 04 Sep 2008 00:24:49 -0000

That was a blog post from 6.5 years ago about a radio show I listened to on BBC radio. They own it.

Re: The Future of Web 3.0 According to Yahoo!

Dave Beckett — Tue, 21 Oct 2008 14:57:02 -0000

I'm pretty sure I emphasized that as far as I personally was concerned, this was more like part#3 of Web 1.0, i.e. Web 1.3 than an entirely new thing. We're adding hyperdata to go along with hypertext and allowing semantic applications to use the data but along with that considering massive scale, software as service/cloud computing, and other issues.

(Aside: some of the quotes attributed to me were probably by Tom, but that's fine ;)

Re: The Flickcurl Story

Dave Beckett — Tue, 04 Nov 2008 00:54:15 -0000

You can get it at http://svn.dajobe.org/view/... although since I do not use windows, it is not supported and that file is just a skeleton. You have to add the appropriate #define names and values for windows. look at flickcurl_config.h.in for what is possible.

Re: Flickcurl – C API to Flickr

Dave Beckett — Sun, 10 May 2009 00:44:17 -0000

That's good. I noticed after shipping 1.10 that the example RPM .spec file I included in the release hadn't got the raptor dependency. This is why a vendor RPM is better - you can test it better than me

Re: RDF Syntaxes 2.0

Dave Beckett — Mon, 25 Jan 2010 01:36:40 -0000

It's not as much of a standard as Turtle; in the sense of takeup and implementations. As I said at the end, adding named graphs to Turtle would be the next step, i.e. in the direction of trig.

Re: RDF Syntaxes 2.0

Dave Beckett — Mon, 25 Jan 2010 10:21:25 -0000

This has already been done (and I implemented them in Raptor). RDF/JSON at http://n2.talis.com/wiki/RD... has been implemented by a few people and is necessarily more verbose, since JSON doesn't have builtins for URIs or RDF literals (datatypes, languages). There's also a more JSON-triples which is essentially N-Triples in JSON, regular but very verbose.

Re: RDF for Intrepid Unix Hackers: Grepping N-Triples - The Datagraph Blog

Dave Beckett — Thu, 04 Mar 2010 12:40:54 -0000

Just a quick comment - this was exactly the kind of thing I wanted to enable when I was editing/creating N-Triples. I use grep with .nt all the time.

Re: Leaving Yahoo – Joining Digg

Dave Beckett — Thu, 26 Aug 2010 23:42:04 -0000

It's got no direct link that I can see to semantic technologies. I will be likely first focused on the APIs, however I haven't started the job yet so who knows what interesting data will turn up

Re: Leaving Yahoo – Joining Digg

Dave Beckett — Fri, 27 Aug 2010 01:03:51 -0000

I don't start work there until next month.

Re: A research interface for the social web – fork it now and find what people are talking about

Dave Beckett — Tue, 21 Sep 2010 22:34:13 -0000

typo: Fireshose should be Firehose

Re: Sharing slides and frustrating readers

Dave Beckett — Mon, 27 Sep 2010 23:15:00 -0000

I've tended to use W3C's Slidy or Eric Meyer's S5 to present personal talks (and some inside the purple beast) and although I recognise the problems you mention, I like the webbyness of it, and the vi/emacs slide.html approach, demoing the actual stuff in the slides. Recommendations on how to improve things would be welcome.

PDF seems unwebby in this case (fine for paper-like docs). See the hoops they had to go through to turn it back into HTML(5).

Re: Writing an RDF query engine. Twice

Dave Beckett — Sun, 24 Oct 2010 19:39:32 -0000

Thanks for the nice comment.

I've done all of the SPARQL 1.1 syntax except property paths in GIT, mostly because it adds a dozen new rules and I'd need to invent a lot of new internal classes and API calls to represent them - it's really an entire new query language. I'll get to it sometime, so that 4store (and others) can use it. I'm still not planning to execute them anytime soon, ahead of the other items I mention in the post.

Re: Writing an RDF query engine. Twice

Dave Beckett — Sun, 24 Oct 2010 19:40:27 -0000

Thanks. If people are interested in this kind of thing it will encourage me to write more.

Re: Dydra | Dydra Lifts Off

Dave Beckett — Mon, 07 Feb 2011 15:08:19 -0000

Hope you have lots of success with this.

Re: How Digg is Built? Using a Bunch of NoSQL technologies

Dave Beckett — Tue, 29 Mar 2011 16:07:06 -0000

"too much" You noticed that? :)

Re: How Digg left its tech geek roots behind and embraced the mainstream

Dave Beckett — Fri, 30 Dec 2011 14:18:25 -0000

I work for DIgg. Those weren't Digg's top stories of 2011 - those were the ones that were missed by other outlets.

Re: San Francisco’s Best Startup Neighborhood

Dave Beckett — Sat, 31 Dec 2011 15:38:20 -0000

It is spelled "Potrero" which is where Digg is... where I work.

Re: Query Optimization in Hive - Count Distinct with Brickhouse Group Count

Dave Beckett — Fri, 25 Apr 2014 20:19:18 -0000

Your query isn't legal Hive at least in my version 0.11.0 I had to use the WHERE before DISTRIBUTE:

SELECT actor_id, movie_id, movie_release_date
FROM movies
WHERE group_count(movie_id) = 0
DISTRIBUTE BY actor_id
SORT BY actor_id, movie_release_date
;