23 Apr 2014

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Exporting Entities using OSF for Drupal (Screencast)

This screencast will introduce you to the OSF for Drupal features that let you export Drupal Entities in one of the following supported serializations: RDF+XML (RDF in XML) RDF+N3 (RDF in N3) structJSON (Internal OSF RDF serialization in JSON) structXML (Internal OSF RDF serialization in XML) ironJSON (irON serialization in JSON) commON (CSV serialization to be used in spreadsheet applications) I will show you how you can use OSF for Drupal to export entire datasets of Entities , or how to export Entities individually . You will see how you can configure Drupal such that different users roles get access ...

23 Apr 2014 12:41pm GMT

22 Apr 2014

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In Hoc Signo Vinces (part 12 of n): TPC-H: Result Preview

In this article, we look at the 100 GB single-server results for the whole workload. We will call this Virt-H instead of TPC-H in order to comply with the TPC rules: Use of the TPC-H label requires an audit. The test consists of a bulk load followed by two runs. Each run consists of a single user power test and a multi-user throughput test. The number of users in the throughput test is up to the test sponsor but must be at least 5 for the 100 GB scale. The reported score is the lower of the two scores. Result ...

22 Apr 2014 3:30pm GMT

Another side of summer

A cocktail recipe from the Pacific northwest. Imitation is the sincerest form of flattery.

22 Apr 2014 12:47am GMT

21 Apr 2014

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RDF lists and SPARQL

Not great, but not terrible, and a bit better with SPARQL 1.1

21 Apr 2014 1:35pm GMT

16 Apr 2014

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Inaugural chairs named to DCMI Advisory Board standing committees

2014-04-16, DCMI is pleased to announce the inaugural chairs of the Advisory Board's new standing committees. Ana Alice Baptista, University of Minho , Portugal, and Wei (Keven) Liu, Shanghai Library will serve as co-chairs of the Education & Outreach Committee . Muriel Foulonneau, Public Research Centre Henri Tudor , Luxembourg, and Emma Tonkin, King's College London will co-chair the Conferences & Meetings Committee . The inaugural chairs will shepherd their respective committees through refinement of the committee charges and formulation or working processes. For the full announcement of the new appointments, see Advisory Board Chair Marcia Zeng's message to the ...

16 Apr 2014 11:59pm GMT

Extension of DC-2014 "Call for Participation" to 17 May 2014

2014-04-16, The deadline for submission of full papers, project reports and posters to the peer reviewed program for DC-2014 in Austin, Texas has been extended by two weeks to 17 May 2014. In addition to submission related to the conference theme -- Metadata Intersections: Bridging the Archipelago of Cultural Memory , submissions are welcome on any topic addressing metadata models, technologies and applications. Submission describing innovative best practices in metadata are welcome from practitioners as well as researchers and application developers. The "Call for Submissions" can be found at http://purl.org/dcevents/dc-2014/cfp .

16 Apr 2014 11:59pm GMT

Become a DC-2014 sponsor!

2014-04-16, The Texas Digital Library and the Conference Committee for DC-2014 in Austin Texas in October are pleased to offer a limited number of sponsors the opportunity to present themselves directly to the conference participants and to a global audience beyond the conference venue. The sponsorship categories for DC-2014 range from provision of fellowship funding to support access to the conference and pre- and post-conference activities by recipients otherwise unable to attend to flash drives containing the open proceedings. Additional information regarding the categories of sponsorship and how to become a DC-2014 Sponsor can be found at http://dcevents.dublincore.org/IntConf/index/pages/view/2014-cfs .

16 Apr 2014 11:59pm GMT

Announcing Schema.org Actions

When we launched schema.org almost 3 years ago, our main focus was on providing vocabularies for describing entities --- people, places, movies, restaurants, ... But the Web is not just about static descriptions of entities. It is about taking action on these entities --- from making a reservation to watching a movie to commenting on a post. Today, we are excited to start the next chapter of schema.org and structured data on the Web by introducing vocabulary that enables websites to describe the actions they enable and how these actions can be invoked. The new actions vocabulary is the result ...

16 Apr 2014 11:07am GMT

14 Apr 2014

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The Open Semantic Framework Academy

The Open Semantic Framework Academy YouTube channel has just been released this morning. The Open Semantic Framework Academy is a dedicated channel for instructional screencasts on OSF. Via its growing library of videos, the OSF Academy is your one-stop resource for how to deploy, manage and use the Open Semantic Framework. OSF is a complete, turnkey stack of semantic technologies and methods for enterprises of all sizes. All the aspects and features of the Open Semantic Framework will be covered in this series of screencasts. Dozens of such screencasts will be published in the following month or two. They are ...

14 Apr 2014 2:17pm GMT

07 Apr 2014

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In Hoc Signo Vinces (part 11 of n): TPC-H Q2, Q10 - Late Projection

Analytics is generally about making something small out of something large. This reduction is obtained by a TOP k operator (i.e., show only the 10 best by some metric) and/or by grouping and aggregation (i.e., for a set of items, show some attributes of these items and a sum, count, or other aggregate of dependent items for each). In this installment we will look at late projection, also sometimes known as late materialization. If many attributes are returned and there is a cutoff of some sort, then the query does not need to be concerned about attributes on which there ...

07 Apr 2014 4:28pm GMT

02 Apr 2014

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American Physical Society Taxonomy – Case Study

Joseph A Busch Taxonomy Strategies has been working with the American Physical Society (APS) to develop a new faceted classification scheme. The proposed scheme includes several discrete sets of categories called facets whose values can be combined to express concepts such as existing Physics and Astronomy Classification Scheme (PACS) codes , as well as new concepts that have not yet emerged, or have been difficult to express with the existing PACS. PACS codes formed a single-hierarchy classification scheme, designed to assign the "one best" category that an item will be classified under. Classification schemes come from the need to physically ...

02 Apr 2014 11:37am GMT

Build your first Semantic Application with Redlink

O ur motivation is to bring the power of content analysis and linked data technologies to a wider audience of IT integrators, and hence end-users. To deliver on this promise we are keenly aware that the complexity of such technologies need to be kept under the hood while keeping you focused on what is important, i.e. how to add value to your data. In this screencast we show how easy it is for non-experts to setup their first Redlink App that analyses content based on a customised dataset (user dictionary). With this simple App you can automatically analyse all your ...

02 Apr 2014 11:01am GMT

31 Mar 2014

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Read Write Web — Q1 Summary — 2014

Summary This month The Web celebrated its 25th birthday. Celebrating on web25 Tim Berners-Lee poses 3 important questions . 1. How do we connect the nearly two-thirds of the planet who can't yet access the Web? 2. Who has the right to collect and use our personal data, for what purpose and under what rules? 3. How do we create a high-performance open architecture that will run on any device, rather than fall back into proprietary alternatives? Join the discussion at the web we want campaign and perhaps we can help make the web more interactive and more read/write. Two ...

31 Mar 2014 6:35pm GMT

OpenPHACTS in Vienna

Hugh Williams and I ( Orri Erling ) went to the Open PHACTS Steering Committee meeting in Vienna last week. I am a great fan of Open PHACTS; the meetings are fun, with a great team spirit, and there is always something new to learn. Paul Groth gave a talk about the stellar success of the the initial term of Open PHACTS. Three releases of platform and data 18 applications Open PHACTS Foundation for sustainable exploitation and further development of the platform Superb culture of collaboration great team spirit great output from distributed organization lots of face-to-face time example to ...

31 Mar 2014 3:49pm GMT

Why SKOS should be a focal point of your linked data strategy

The Simple Knowledge Organization System (SKOS) has become one of the 'sweet spots' in the linked data ecosystem in recent years. Especially when semantic web technologies are being adapted for the requirements of enterprises or public administration, SKOS has played a most central role to create knowledge graphs. In this webinar, key people from the Semantic Web Company will describe why controlled vocabularies based on SKOS play a central role in a linked data strategy , and how SKOS can be enriched by ontologies and linked data to further improve semantic information management. SKOS unfolds its potential at the intersection ...

31 Mar 2014 11:04am GMT

30 Mar 2014

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Linked Open Drug Data: three years on

Almost three years ago I collaborated with others in the W3C Health Care and Life Sciences interest group . One of the results of that was a paper in the special issue around the semantic web conference at one of the bianual, national ACS meeting (look at this nice RDFa-rich meeting page !). My contribution was around the ChEMBL-RDF , which I recently finally published, though it was already described earlier in an HCLS note . Anyway, when this paper reached the most viewed paper position in the JChemInf journal, and I tweeted that event, I was asked for an ...

30 Mar 2014 3:00pm GMT