Semantic Web

This group should probably have more organizers. See documentation on this recommendation.

Welcome to the Semantic Web group in Drupal. This group was started at DrupalCon Barcelona 2007 and includes discussions on how to integrate the Semantic Web technologies into Drupal and list the various effort of the community towards enabling RDF in Drupal. Drupal 7 comes with native RDFa support in core. If you want extra RDF capabilities such as other serialization formats and SPARQL support, checkout the RDF Extensions, SPARQL and SPARQL Views contributed projects. If you need support or have found a bug in one of the fore mentioned projects, please file a ticket in their issue tracker (block on the right on each project page).

adewinne's picture

Web Developer (int / adv) | Therefore Interactive

Employment type: 
Full time
Employment type: 
Part time
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Who we're looking for

To support our growth, we're looking for an exceptional web developer to join our Toronto or Newmarket based team immediately. We're currently welcoming intermediate to senior developers to apply.

Meet Therefore Interactive

Therefore Interactive is a digital agency that believes in building exceptional digital experiences that communicate across all devices. We believe in being agile, building content centric web systems and creating engaging and beautiful digital experiences.

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niccolo's picture

Big Data Drupal: Cloudera Hadoop, MapReduce, Nutch, Solr, Aegir BOA, Drupal 7 ApacheSolr Views

I am giving a talk at Badcamp on Big Data Drupal: Cloudera Hadoop, MapReduce, Nutch, Solr, Aegir BOA, Drupal 7 ApacheSolr Views

I am trying to gather some other experts i.e. Cloudera / Hadoop / MapReduce + HyperDrupal + Twig etc to come and handle the bigger and deeper questions!topic/cdh-user/Uwuj1q7bWBY

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jneubert's picture

Drupal for Linked Data (beating the drums ...)

At ZBW German National Library of Economics we do some work with Linked Data and Drupal. In particular, we recently relaunched ZBW Labs, a web site which showcases prototypes and beta applications. A poster for the Dublin Core Conference (Lisbon, September 2013) "ZBW Labs: Publish Projects as Linked Data" illustrates some lessons learned. A more in-depth talk covers the use of Drupal for "Linked Data Enhanced Publishing for Special Collections" (ELAG Conference, Ghent, May 2013). And at SWIB13 (Semantic Web in Libraries, Hamburg, November 2013), there will be a half-days workshop on Linked Data Publication with Drupal.

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udhayy's picture

Drupal Workshop @ Kerala with ICFOSS & IEEE

We are excited to let you know about the high level hands-on workshop on Drupal Content Management System - organized by the the IEEE Kerala GOLD along with the FOSS Young Professional Meet 2013 on September 27,28 and 29 at Technopark Trivandrum.. This will be the 9th such training by Chennai Drupal Community! Our last one was at KGISL and KITE Engineering College, Coimbatore.

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scor's picture

RDF in Core office hours on Monday mornings

2013-08-26 08:00 - 10:00 America/New_York

I'm making myself available to help anyone interested in contributing to RDF in Drupal 8 every Monday morning between 8am and 10am EDT. Kay VanValkenburgh and Jesse Day have already expressed interest in participating. Come join the group on IRC #drupal-rdf (some of us are there the rest of the time too). We will use this pad during the sprint to keep people aware of what others are working on. See other related posts:

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State of in Drupal 8

This wiki page represents the current state of the support for Drupal 8. Every attempt will be made to keep this document as up to date as possible.

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RockDr's picture

Sr. Drupal Developer | Autodesk, Inc (San Francisco)

Employment type: 
Full time

I'm preparing to launch a high-traffic, high-visibility Drupal site to 'help' end-users of Autodesk products and services, providing learning, technical support, customer service through an innovative content-rich web site using a federated content model with community-based features.

This will be a really big leap forward for Autodesk customers and is part of a strategic initiative for the company around which are are rapidly hiring a new team.

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pentasiaalvaro's picture

Barcelona Full time Drupal developer | pentasia

Employment type: 
Full time
Not allowed

The role requires PHP5 professional with drupal experience (MySQL, CSS, HTML, SQL) who are highly motivated, have creative flair and has a real interest in technology. With the companies constantly expanding IT team. As a successful PHP developer (MySQL, CSS, HTML, SQL) you will be expected to implement critical solutions for the business, to perform coding to a technical specification and to create technical documentation within a unique, Agile and relaxed environment.

The skills that are desired for this role are;


• drupal



• Linux command line

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scor's picture

Join the Twig Sprint on Friday at DrupalCon Portland

For Drupal 8 we're planning to split the RDF module into two decoupled modules:

  • The RDF module will only care about defining the mappings with the entity types and the fields, without dealing with any syntax/presentation. Thus it won't do much on its own, but other modules can rely on it to output data.

  • The RDFa pieces of the existing D7 RDF module will be moved into a new module that relies on the RDF module to get the term mappings and constructs the RDFa markup from these mappings.

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dahacouk's picture

Importing Facebook groups wholesale into Drupal Organic Groups?

I'm wondering if anyone has done any work on importing Facebook groups wholesale into Drupal Organic Groups? I know we can export all the data from a Facebook group using the Facebook API. I guess the main task is to how to map Facebook comments (with revisions?), users, events and pages to a local Drupal instance. I guess make placeholders for these Facebook objects and allow these to be acquired retrospectively? Any ideas? Any projects with similar aims?

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emilianodelau's picture

Integration with the ALICE chat bot.

I would like to initiate a project where the A.L.I.C.E. chat bot reads RDF from a site and uses it to respond to queries. The A.L.I.C.E. people ( are on board and have already linked their bot with RDF but we need some people who are knowledgeable with RDF in Drupal to make this happen.

I intend to start a Kickstarter campaign to fund this project.

Please let me know if you are interested in an initial conference call to discuss the parameters and to come up with a budget.


tinflute's picture

Does Drupal's RDF implementation support Graph databases?

I hope this isn't a dumb question, but do the drupal RDF* modules support having a separate RDF database like Neo4j or others?
It seems that any full-scale semantic application implemented with Drupal will very quickly grind to a halt if the data is stored in an RDBMS.
If there's been any discussion, drupalcon talks, or similar on this subject, I'd be very interested to click on that.

natuk's picture

Alternative RDF models for Drupal

RDF support in Drupal has been implemented with this model in mind:
Node = RDF subject
Field = RDF predicate
Field value = RDF object

This is a wonderful solution for most of Drupal content where the content type is ontologically connected to the field by a predicate.

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natuk's picture

Recommendation for linking to external RDF data

RDFx allows for fields to be expressed as RDFa. Sometimes RDF concepts exist in other locations, for example DBpedia, and not as part of the local taxonomies. What is the recommended way to link to these external resources? These resources do have persistent URIs, so I guess the simplest thing to do is to make the field into a link. But ideally one would prefer to get a good label to show on the HTML output rather than the link itself. RDF Proxy ( seems to be doing that but the project appears to be abandoned. Any ideas?

pinkonomy's picture

Callimachus integration with Drupal

the Version 1.0 of Callimachus project has been released.

Would be possible to integrate Callimachus with Drupal,so as to easily make open data/linked data applications?

ioantoma's picture

Diversity Aware Drupal Extension

Dear all,

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rogerhyam's picture

Does RDFx ignore the rel / rev settings when exporting RDF through restws?

If the value of a text field is a URI and I set the 'Attribute Type' in the RDF Mappings panel to 'rel' then in the RDF produced by the restws this appears to be ignored. e.g. adding an owl:sameAs for a URI in a text field produces RDF/XML like this:


When is should look like this:

<owl:sameAs rdf:resource="" />

The method in rdfx.module that appears to do the business here is this

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rogerhyam's picture

Cool URIs with Drupal 7 and RDFx?

I am trying to port a bespoke system we have running to Drupal 7.

We publish stable URIs using the Cool URIs 'specification'

An example of a URI that works on the same principle (not the system I am porting) is this:

Call it with a browser and you get a 303 redirect to a human readable resource. Call it with curl -L and you get RDF.

You can check it on the Vapour validator

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neenamanu's picture

Research on semantic web

I just want to start a research on semantic web integration with drupal.
Could you please suggest me some ideas.


Go4LD's picture

Queries through RDF-core

Hi all

Being a Drupal newcomer, I am working on two projects where we would like to consume defined and existing RDF-data in the search query coming out of our library catalogue (using Drupal). Our main aim is to query a RDF-container and then display a result-set of records from our catalogue. The records to be displayed from our catalogue will contain the ID of the "found" RDF-data-element.

RDF-core in Drupal7 seems to do what we want, but I need to give further specifications to several of our partners and I lack the detailed information so far.

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Semantic Web

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