Posts Tagged ‘Callimachus’

Open The Door To Bringing Linked Data To Real-World Projects

ld1Linked Data: Structured Data on the Web is now available in a soft-cover edition. The book, authored by David Wood, Marsha Zaidman, Luke Ruth, and Michael Hausenblas, and with a forward by Tim Berners-Lee, aims to give mainstream developers without previous experience with Linked Data practical techniques for integrating it into real-world projects, focusing on languages with which they’re likely to be familiar, such as JavaScript and Python.

Berners-Lee’s forward gets the ball rolling in a big way, making the case for Linked Data and its critical importance in the web ecosystem:“The Web of hypertext-linked documents is complemented by the very powerful Linked Web of Data.  Why linked?  Well, think of how the value of a Web page is very much a function of what it links to, as well as the inherent value of the information within the Web page. So it is — in a way even more so — also in the Semantic Web of Linked Data.  The data itself is valuable, but the links to other data make it much more so.”

The topic has clearly struck a nerve, Wood believes, noting that today we are “at a point where structured data on the web is getting tremendous play,” from Google’s Knowledge Graph to the Facebook Open Graph protocol, to the growing use of the schema.org vocabulary, to data still growing exponentially in the Linked Open Data Project, and more. “The industry is ready to talk about data and data processing in a way it never has been before,” he continues. There’s growing realization that Linked Data fits in with and nicely complements technologies in the data science realm, such as machine learning algorithms and Hadoop, such that “you can suddenly build things you never could before with a tiny team, and that’s pretty cool….No technology is sufficient in and of itself but combine them and you can do really powerful things.”

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Callimachus Open Source 1.2 Is Out

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According to a new announcement from the company 3 Round StonesCallimachus Open Source v1.2 has been released.  Callimachus is a Linked Data application server used by the Federal Government for publishing open data on the Web and Fortune 1000 for consuming and visualizing a combination of enterprise and open content.  3 Round Stones is working to make Callimachus the choice of Web developers who want to rapidly write and host data-driven Web applications.   Callimachus Open Source 1.2 provides a number of improvements across the board – some which improve use experience for building visualizations with the Chart Wizard and some back end changes aimed at improving scaling and performance. As always, for full details about the project and downloads check out http://callimachusproject.org.  Here are some highlights.” Read more

Callimachus Version 1.0

Callimachus LogoThe Callimachus Project has announced that the latest release of the Open Source version of Callimachus is available for immediate download.
Callimachus began as a linked data management system in 2009 and is an Open Source system for navigating, managing, visualizing and building applications on Linked Data.
Version 1.0 introduces several new features, including:
  • Built-in support for most types of Persistent URLs (PURLs), including Active PURLs.
  • Scripted HTTP content type conversions via XProc pipelines.
  • Ability to access remote Linked Data via SPARQL SERVICE keyword and XProc pipelines.
  • Named Queries can now have a custom view page. The view page can be a template for the resources in the query result.
  • Authorization can now be performed based on IP addresses or the DNS domain of the client.

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New “Linked Data” Book Launches – 50% Discount for Our Readers

Cover of Linked Data book by David Wood et alThis week, Manning Publications is launching the book “Linked Data,” by David Wood, Marsha Zaidman, Luke Ruth, and Michael Hausenblas.

As part of that launch, Manning is offering a one-day 50% discount for readers of SemanticWeb.com. The discount applies to all versions of “Linked Data”: eBook, print books, and Manning’s “MEAP” books (more on MEAP below). To claim the discount, use coupon code “12linksw” when ordering.

This offer expires at 11:59 pm (US EST) on December 6, so if you’re interested, act fast!

About the Book (description by David Wood):

The flexible, unstructured nature of the Web is being extended to act as a global database of structured data. Linked Data is a standards-driven model for representing structured data on the Web that gives developers, publishers, and information architects a consistent, predictable way to publish, merge and consume data. The Linked Data model offers the potential to standardize Web data in the same way that SQL standardized large-scale commercial databases. Linked Data has been adopted by many well-known institutions, including Google, Facebook, IBM, Oracle and government agencies, as well as popular Open Source projects such as Drupal.

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Pharma Becoming Ever-Bigger Fan of Semantic Technology

Courtesy: Flickr/epSos.de

At the Semantic Technology and Business Conference in New York City last week, attendees got to hear a lot about how semantic technology is influencing various sectors, such as government (see our stories here and here) and media (see this article and this one). Another prominent one on display: pharmaceuticals.

Pharma, for example, was the driving use case for the update to Callimachus that focuses on helping users deal with data that’s external to the framework for data-driven applications, David Wood, CTO of Callimachus project sponsor 3 Round Stones, told The Semantic Web Blog at the event. (To learn more about the update, see our story here.)

A session on Tuesday last week saw Lee Feigenbaum, vp of marketing at Cambridge Semantics, which makes the Anzo express and Anzo Enterprise solutions,  put forth a case for semantic tech as being key to data integration and interoperability in the sector, as well. “Can semantic web technologies break down enterprise data silos just as they break down document silos on the web?” he said. “The answer to the question is, “Of course.” Compared to the web, the data silo challenges of even the largest pharmaceuticals organization is relatively minor.”

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Callimachus Update Has Big Implications for Data Interoperability

Callimachus is getting an update. It’s been quiet for a few months over at the framework for data-driven applications based on Linked Data principles, but with good reason, says David Wood, CTO of Callimachus project sponsor 3 Round Stones. 3 Round Stones also offers Callimachus Enterprise, winner of this year’s Startup Competition at the Semantic Technology and Business Conference in San Francisco.

Big things were on the menu for this release, which should emerge from beta today. To date, all the RDF that Callimachus has dealt with has been local to it, Wood explains. “People have been saying for ages, ‘But I don’t want to copy the LOD cloud into Callimachus to deal with it. I want to deal with a lot of data out there in the world, in enterprise systems, an Oracle server, or the LOD cloud,” he says.

The new release takes on the challenge of dealing with data that’s external to Callimachus.

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Spotlight on Callimachus

One of the many innovative semantic solutions that was presented at this week’s SemTech conference is Callimachus, a linked data management system that “allows Web authors to quickly and easily create semantically-enabled Web applications with a minimal knowledge of Semantic Web principles.” According to Bernadette Hyland, Callimachus is the first system of its kind. Read more