http://weblog.clarkparsia.com/ 2006-02-10T00:00:00Z http://weblog.clarkparsia.com/2011/09/19/semantic-versioning-and-owl-ontologies/ 2011-09-19T00:00:00Z 2011-09-19T00:00:00Z

<p>I begin with a bald, if not exactly bold claim: an OWL ontology is like a public API for your data. Better: an OWL ontology is a public, machine-readable contract between producers and consumers about the meaning of data&hellip;</p>

http://weblog.clarkparsia.com/2011/05/31/stardog-performance-sp2b-benchmark/ 2011-05-31T00:00:00Z 2011-05-31T00:00:00Z

<p>As you may already know, we&rsquo;re working hard on <a href="http://stardog.com/">Stardog</a>, our upcoming RDF database. It&rsquo;s presently in closed alpha testing (55 testers), at version 0.5.3, and progressing rapidly. The overriding goals for Stardog, which we&rsquo;ve repeated often, are:</p>

http://weblog.clarkparsia.com/2011/05/04/how-to-create-business-value-with-semantic-tech/ 2011-05-04T00:00:00Z 2011-05-04T00:00:00Z

<p>I recently <a href="https://twitter.com/#!/kendall/status/65404717152473088">tweeted</a> that we build ontologies to create business value. I meant that we build Semantic Technology-based software to empower our customers to create business value (or to create it for them). In reply, a few people said they&rsquo;d like to hear more&hellip;</p>

http://weblog.clarkparsia.com/2011/03/07/sdq-information-integration-in-the-real-world/ 2011-03-07T00:00:00Z 2011-03-07T00:00:00Z

<p>The semantic technology sweet spot is <a href="http://en.wikipedia.org/wiki/Data_integration">information integration</a>; that means (primarily, but not only) evaluating SPARQL queries over a set of distributed, heterogeneous data sources. Such query results should be sound; they can be, optionally, exact or approximative. SDQ is our product that provides this (and more) functionality&hellip;</p>

http://weblog.clarkparsia.com/2011/02/24/why-expressive-reasoning-is-hard/ 2011-02-24T00:00:00Z 2011-02-24T00:00:00Z

<p>As semantic technologies mature, more and more people understand <em>that</em> automated reasoning is hard, but not really <em>why</em> it&rsquo;s hard. This blog post explains in detail&mdash;using a very simple, easy to understand example&mdash;why automated reasoning is computationally hard&hellip;</p>

http://weblog.clarkparsia.com/2011/01/26/stardog-talk-at-nyc-semweb-meetup/ 2011-01-26T00:00:00Z 2011-01-26T00:00:00Z

<p>On 3 Feb, I&rsquo;ll be giving a talk about Stardog at the <a href="http://www.meetup.com/semweb-25/calendar/15655768/">Semweb Meetup in NYC</a>&hellip;</p>

http://weblog.clarkparsia.com/2011/01/10/stardog-beta/ 2011-01-10T00:00:00Z 2011-01-10T00:00:00Z

<p><strong>TL;DR?</strong> <a href="http://stardog.com/">Stardog</a> is a fast, lightweight RDF database. Today we&rsquo;re announcing limited access to our beta testing program, in preparation for the 1.0 release. If you&rsquo;re interested in beta-testing Stardog, <a href="mailto:kendall@clarkparsia.com">drop me an email</a>&hellip;</p>

http://weblog.clarkparsia.com/2010/12/29/stardog-is-coming/ 2010-12-29T00:00:00Z 2010-12-29T00:00:00Z

<p><img src="/img/stardog.png" title="Don't Fear the Stardog" alt="Stardog is coming...!" /></p>

http://weblog.clarkparsia.com/2010/12/17/ortiz-pellet/ 2010-12-17T00:00:00Z 2010-12-17T00:00:00Z

<p>The next major release of Pellet, due out in Q1 of next year, will be version 3.0. One of the big changes to Pellet 3.0 is Ortiz, the new native Java API. This is the first post in a series that will describe Pellet 3.0 and we&rsquo;re starting with Ortiz&hellip;</p>

http://weblog.clarkparsia.com/2010/12/14/introducing-spanner/ 2010-12-14T00:00:00Z 2010-12-14T00:00:00Z

<p><strong>TLDR?</strong> Spanner is a new product that <em>automagically</em> turns documents (of any kind) into a full-featured semantic web&mdash;or, if you prefer, &ldquo;Linked Data&rdquo;&mdash;application that is easily customized or extended via JavaScript&hellip;</p>