JRDF 0.5.5.1 Released- July 4, 2008 Just a quick note about a new version of JRDF. It's been a short time between releases but it still contains one significant advance over the previous one and that's persistent graphs. It's still in the early stages but it's basic enough for simple use cases. It also contains text serialization (based on NTriples) that is useful for moving RDF molcules around nodes in a cluster (for example). A lot of this code is fairly much "spike" code and I expect that another release will be released...http://morenews.blogspot.com/2008/07/jrdf-0551-released.html Of mats and cats- July 4, 2008 No universal things Re: comparing XML and RDF data models was started by Bernard Vatant. This comes to the heart of whether people can know reality (well that's how I'd summarize the idea of universals see Beyond Concepts).There were a few quotes that I found interesting:It's been counter-productive in science for centuries. Physics had to go over the notion of universal thing to understand that light is neither a wave, nor a particle. Biology to go over the notion of taxa as rigid concepts...http://morenews.blogspot.com/2008/07/of-mats-and-cats.html Ob. iPhone 2- July 3, 2008 Good to see carriers actually putting up a bit of a fight for iPhone business. Telstra announces iPhone 3G details with $279, $30 a month on a 24 month, with free access to WiFi hotspots. This better be true.Update: Optus releases pricinghttp://morenews.blogspot.com/2008/07/ob-iphone-2.html Round of Links- July 3, 2008 Apache Hadoop Wins Terabyte Sort Benchmark "One of Yahoo's Hadoop clusters sorted 1 terabyte of data in 209 seconds...This is the first time that either a Java or an open source program has won." There were just under 1000 nodes, the benchmark results are hosted by HP (a tad more details here).Microsoft buys Powerset one of the interesting things is that they use Hadoop (see their blog). It's hard to tell whether this is bad or good for Hadoop.Google vs Microsoft - oh for structure.Tom...http://morenews.blogspot.com/2008/07/round-of-links.html JRDF 0.5.5- July 1, 2008 The main difference in version 0.5.5 from the previous one is the inclusion of a RDF molecule store. Both in memory and disk based versions are supported and can be queried just like a normal triple store. This is also the first version that has been renamed URQL instead of SPARQL for the query evaluation. The SPARQL grammar is the same but it does not support the weird outliers that SPARQL has for empty graph patterns but follows relational (and other) algebras. There's also the usual bug..http://morenews.blogspot.com/2008/06/jrdf-055.html |