Semantic Web

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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).

hodota's picture

API-First Decoupled Drupal camp Tokyo 2019

Start: 
2019-12-13 10:10 - 2019-12-14 17:00 Asia/Tokyo
Event type: 
Drupalcamp or Regional Summit

API-First Decoupled Drupal camp Tokyo 2019

Concept :

Open source development of API-First, modern Web services and systems leading to 5G

Goals :

Understand Drupal's API-First functionality to work with other systems and build a front end.

Target :

Corporate IT person, System Integration company engineers, Web engineers (front end), etc.

Date:

December 13-14, 2019
Hands-on: Friday, December 13,
Session: Saturday, December 14

Venue :

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Deno's picture

State of semantic support in Drupal 8?

Once upon a time, D7 was a promising platform for linked data. Looking at D8, it would seem that most of the functionality hasn't made it to D8 and the D7 semantic web modules weren't ported to D8.

What is currently usable in D8?

I can see https://www.drupal.org/docs/7/api/rdf-mapping-api and a few projects by Martin Schauer (PoolParty) https://www.drupal.org/u/martin-schauer. Other than that?

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BarisW's picture

Frontend United

Start: 
2018-05-31 17:00 - 2018-06-02 18:00 Europe/Amsterdam
Event type: 
Related event (ie. not Drupal specific)

A non-profit, developer-first, community-focused conference.

Join designers, developers and drupalistas for four days of focused experience-sharing, talks and sessions on design, frontend engineering and Drupal. From 31 May to 3 June 2018 in Utrecht, The Netherlands

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Fransie's picture

options for SKOS integration in Drupal 8

Hi! I am trying to investigate the options for exposing existing SKOS thesauri files in Drupal 8.
Functionality that I am looking for is:
1) Being able to use the SKOS thesaurus as a taxonomy for the drupal site.
2) Providing user-friendly access to the SKOS thesaurus, including free text search.
3) Keeping the original URIs intact.

Additionally, I think a SPARQL endpoint for the SKOS data would be welcome.

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bkudrle's picture

Any interest in expanding Drupal 8 Semantic Web capabilities for a faceted directory?

I have mostly been away from the Semantic Web (SW) development since Drupal 7. Now that I look at the state of the SW tools in Drupal 8, it seems to have tapered off somewhat. There is the EasyRDF library that has been put into core, which is a positive. But I don't see much use of it in core or in other modules or in the D8 examples (although there was a start at https://www.drupal.org/node/2102705).

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dahacouk's picture

Drupal 8 social network integration rewritten (thanks Google)

Drupal 8 social network integration and functionality is being rewritten and harmonised thanks to Google grant. Expect more unified social network user interaction and config management.

Tomorrow's (Wednesday's) Drupal Social API call (Hangout On Air) 3pm CEST 27 July 2016. Join at
https://plus.google.com/events/c04ei9ilpdhsl66s8ln90s3bq2g
We'll post exact invite code just before 3pm CEST. Be ready for it – headsets recommended.

To be included in future weekly calls follow
https://plus.google.com/+drupalsocialinitiative
and join
https://groups.drupal.org/social-initiative

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Udhaya Kumar's picture

Vote for Shyamala. Board of Directors Community Election is Happening Now

Hi all Drupaler's :-) Vote for Shyamala Rajaram​ and please encourage your friends and team to vote.

Elections are underway now for the open Drupal Association At-Large Director. Meet the Candidates for our Board by listening to the Q&A sessions and checking out their profile pages. Then go cast your vote!

https://assoc.drupal.org/drupal-association-board-elections

Vote Link : https://assoc.drupal.org/election/16/candidates

Who can vote?

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bshambaugh's picture

Extending IKScE Demo Module with RDFa

Dear All,

I was checking out the IKS Content Enhancement Demo for Drupal 7 [1]. This involves annotate.js [2] in conjunction with Wolfgang Ziegler's combination of Drupal, Apache Stanbol, and VIE.js [3].
I like what the code makes possible, but I would like the change the substitution that jQuery gives for each annotation.
Right now I see markup that does not serialize to RDF inside the "content:enconded" tags. I believe changing line 895
for newElement in [2] would allow me to add some RDFa content.

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tr3v0's picture

How does one change the RDF namespaces from the publishing settings page?

I've been experimenting with the sparql_views module to pull RDF and I've somehow managed to mess up the namespaces, resulting in RDF namespace conflicts. How can I delete the incorrect mappings from the RDF publishing settings page?

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ashepherd's picture

BoF - RDF in Drupal: Making your data interoperable

Start: 
2015-05-13 17:00 - 18:00 America/Los_Angeles
Organizers: 
Event type: 
DrupalCon

If you are you heading to DrupalCon LA, consider the RDF BoF on Wednesday at 5pm Pacific.

Agenda being formed in a Google Doc. Give me a shout if you'd like to add anything to it:

https://docs.google.com/document/d/1Y1x92G6jL5yzmM6kRS1boRERuMzKWYvuzbVM...

See you there!

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natuk's picture

Current best practice

Hello, is there a document which summarises current best practices for the use of the various RDF extensions? Is a Drupal-based SPARQL endpoint feasible and practical at the moment? Some of the extensions seem less busy in terms of development.

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chocolatehuanghai's picture

sparql views

hi!everyone!i have encountered a mistake when i use sparql views rescource type,when i add a sparql views resource type,i will appear"PDOException: SQLSTATE[42S22]: Column not found: 1054 Champ 'endpoint_uri' inconnu dans field list: SELECT endpoint_uri FROM {sparql_views_resource_type_endpoint} WHERE svid = :svid; Array ( [:svid] => ) in sparql_views_resource_type_form() (line 54 of D:\wamp\www\drupal-7.34.1.1\sites\all\modules\sparql_views\sparql_views.admin.inc)."I know it is about mysql ,but i don's know how to solve it. And my mysql version is 5.6,PHP is 5.5.
Thank you!

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chocolatehuanghai's picture

How to use rdf mappings and sparql endpoint

HI!I am new to drupal,i have installed rdfx and sparl related modules,but i don't know how to use it,i see someone use it to publish linked data,and they also gave the principle of using them,but i still don't know how can the drupal map the resources into rdf form and how it can link the external data?Can you guys help me?Thank you!!

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thurnert's picture

Automatic Semantic Tagging Module launched

REEEP and CTCN have recently launched Climate Tagger, a new tool to automatically scan, label, sort and catalogue datasets and document collections. Climate Tagger now incorporates a Drupal Module for automatic annotation of Drupal content nodes. Climate Tagger addresses knowledge-driven organizations in the climate and development arenas, providing automated functionality to streamline, catalogue and link their Climate Compatible Development data and information resources.

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scor's picture

RDF improvements in Drupal 7.33: better schema.org support and performance

While a large part of the Drupal community is focusing on and getting excited about Drupal 8, it doesn't mean that Drupal 7 isn't getting any love! The latest version Drupal 7.33 includes several improvements for the RDF module which I thought this group would be interested to hear about.

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kalte2707's picture

SemWeb session at DrupalCon 2014 in Amsterdam?

Dear all
I wonder if there will be a session on semantic web issues at DrupalCon2014 in Amsterdam starting in about 1 week - I would be very interested and curious to learn about current projects going on, about what is planned / in implementation for Drupal8 and also provide insights about our own Drupal work at Semantic Web Company by making use / integrating PoolParty Semantic Suite..... What do people think? Best - see you in Amsterdam - Martin

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Sachini's picture

GSoC Project : Drupal 8 Schema.org Mapping Tool

Hello everyone,

This is to announce the first release of my Google Summer of Code 2014 Project. You can download the module from https://www.drupal.org/project/rdfui
A screencast, covering all the features of the modules, is also available.

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jcalais's picture

D7 module for linking term reference fields to external providers such as Freebase, Dbpedia.

Hi everyone.

I just joined this group and wanted to let you know about an effort of ours to create a module to fetch taxonomy terms from external sources. This would mean no more free hand tags and instead the autocomplete field keyword searches a bunch of providers through their open apis.

The providers are modular in nature, so anyone can make a new provider for the base module, which is called Yild (Yild - integrator for Linked Data).

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John_B's picture

Coursera metadata course

Just to draw attention to the Metadata course on Coursera. At time of writing the second weekly unit, on Dublin Core, has just been published. I have no link with Coursera or Dr Pomerantz, I am just taking the course!

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mvrweb's picture

Export data in RDF

Instead of appending the URLs with .nt or .rdf as in /node/66.nt, I want to provide an explicit link or button so that users can select the export format and click it. Is there any easy way, preferably through UI to do this? This should be associated with all the items of a specific content type.

Apart from nt and rdf/xml formats, how can I enable other formats? I installed RESTful Web Services but couldn't figure out where/how to enable the other formats.

Thanks in advance.

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