Category Archives: DBpedia Chapters

DBpedia Chapters – Survey Evaluation – Episode Two

Welcome back to part two of the evaluation of the surveys, we conducted with the DBpedia chapters.

Survey Evaluation – Episode Two

The second survey focused on technical matters. We asked the chapters about the usage of DBpedia services and tools, technical problems and challenges and potential reasons to overcome them.  Have a look below.

Again, only nine out of 21 DBpedia chapters participated in this survey. And again, that means, the results only represent roughly 42% of the DBpedia chapter population

The good news is, all chapters maintain a local DBpedia endpoint. Yay! More than 55 % of the chapters perform their own extraction. The rest of them apply a hybrid approach reusing some datasets from DBpedia releases and additionally, extract some on their own.

Datasets, Services and Applications

In terms of frequency of dataset updates, the situation is as follows:  44,4 % of the chapters update them once a year. The answers of the remaining ones differ in equal shares, depending on various factors. See the graph below. 

 

 

 

 

 

 

 

When it comes to the maintenance of links to local datasets, most of the chapters do not have additional ones. However, some do maintain links to, for example, Greek WordNet, the National Library of Greece Authority record, Geonames.jp and the Japanese WordNet. Furthermore, some of the chapters even host other datasets of local interest, but mostly in a separate endpoint, so they keep separate graphs.

Apart from hosting their own endpoint, most chapters maintain one or the other additional service such as Spotlight, LodLive or LodView.

 

 

 

 

 

 

 

Moreover,  the chapters have additional applications they developed on top of DBpedia data and services.

Besides, they also gave us some reasons why they were not able to deploy DBpedia related services. See their replies below.

 

 

 

 

 

 

 

 

 

DBpedia Chapter set-up

Lastly, we asked the technical heads of the chapters what the hardest task for setting up their chapter had been.  The answers, again, vary as the starting position of each chapter differed. Read a few of their replies below.

The hardest technical task for setting up the chapter was:

  • to keep virtuoso up to date
  • the chapter specific setup of DBpedia plugin in Virtuoso
  • the Extraction Framework
  • configuring Virtuoso for serving data using server’s FQDN and Nginx proxying
  • setting up the Extraction Framework, especially for abstracts
  • correctly setting up the extraction process and the DBpedia facet browser
  • fixing internationalization issues, and updating the endpoint
  • keeping the extraction framework working and up to date
  • updating the server to the specific requirements for further compilation – we work on Debian

 

Final  words

With all the data and results we gathered, we will get together with our chapter coordinator to develop a strategy of how to improve technical as well as organizational issues the surveys revealed. By that, we hope to facilitate a better exchange between the chapters and with us, the DBpedia Association. Moreover, we intend to minimize barriers for setting up and maintaining a DBpedia chapter so that our chapter community may thrive and prosper.

In the meantime, spread your work and share it with the community. Do not forget to follow and tag us on Twitter ( @dbpedia ). You may also want to subscribe to our newsletter.

We will keep you posted about any updates and news.

Yours

DBpedia Association

DBpedia Chapters – Survey Evaluation – Episode One

DBpedia Chapters – Challenge Accepted

The DBpedia community currently comprises more than 20 language chapters, ranging from  Basque, Japanese to Portuguese and Ukrainian. Managing such a variety of chapters is a huge challenge for the DBpedia Association because individual requirements are as diverse as the different languages the chapters represent. There are chapters that started out back in 2012 such as DBpediaNL. Others like the Catalan chapter are brand new and have different haves and needs.

So, in order to optimize chapter development, we aim to formalize an official DBpedia Chapter Consortium. It permits a close dialogue with the chapters in order to address all relevant matters regarding communication, organization as well as technical issues. We want to provide the community with the best basis to set up new chapters and to maintain or develop the existing ones.

Our main targets for this are to: 

  • improve general chapter organization,
  • unite all DBpedia chapters with central DBpedia,
  • promote better communication and understanding and,
  • create synergies for further developments and make easier the access to information about which is done by all DBpedia bodies

As a first step, we needed to collect information about the current state of things.  Hence, we conducted two surveys to collect the necessary information. One was directed at chapter leads and the other one at technical heads. 

In this blog-post, we like to present you the results of the survey conducted with chapter leads.  It addressed matters of communication and organizational relevance. Unfortunately, only nine out of 21 chapters participated, so the respective outcome of the survey speaks only for roughly 42% of all DBpedia chapters.

Chapter-Survey  – Episode One

Most chapters have very little personnel committed to the work done for the chapter, due to different reasons. 66 % of the chapters have only one till four people being involved in the core work. Only one chapter has about ten people working on it.

Overall, the chapters use various marketing channels for promotion, visibility and outreach. The website as well as event participation, Twitter and Facebook are among the most favourite channels they use. 

The following chart shows how chapters currently communicate organizational and communication issues in their respective chapter and to the DBpedia Association.

 

 

The second one explicit that ⅓ of the chapters favour an exchange among chapters and with the DBpedia Association via the discussion mailing list as well as regular chapter calls.

 

The survey results show that 66,6% of the chapters currently do not consider their current mode of communication efficient enough. They think that their communication with the DBpedia Association should improve.

 

As pointed out before, most chapters only have little personnel resources. It is no wonder that most of them need help to improve the work and impact of chapter results. The following chart shows the kind of support chapters require to improve their overall work, organization and communication. Most noteworthy, technical, marketing and organization support are hereby the top three aspects the chapters need help with. 

 

 

The good news is all of the chapters maintain a DBpedia Website. However, the frequency of updates varies among them. See the chart on the right.

 

 

 

Earlier this year, we announced that we like to align all chapter websites with the main DBpedia website. That includes a common structure and a corporate design, similar to the main one.  Above all, this is important for the overall image and recognition factor of DBpedia in the tech community. With respect to that, we inquired whether chapters would like to participate in an alignment of the websites or not.

 

 

 

With respect to marketing support, the chapters require from the Association, more than 50% of the chapters like to be frequently promoted via the main DBpedia twitter channel.

 

 

Good news: just forward us your news or tag us with @dbpedia and we will share ’em.

Almost there.

Finally, we asked about chapters requirements to improve their work and, the impact of their chapters’ results. 

 

Bottom line

All in all, we are very grateful for your contribution. Those data will help us to develop a strategy to work towards the targets mentioned above. We will now use this data to conceptualize a little program to assist chapters in their organization and marketing endeavours. Furthermore, the information given will also help us to tackle the different issues that arose, implement the necessary support and improve chapter development and chapter visibility.

In episode two, we will delve into the results of the technical survey. Sit tight and follow us on Twitter, Facebook, LinkedIn or subscribe to our newsletter.

Finally, one last remark. If you want to promote news of your chapter or otherwise like to increase its visibility, you are always welcome to:

  • forward us the respective information to be promoted via our marketing channels 
  • use your own Twitter channel and tag your post with @dbpedia,  so we can retweet your news. 
  • always use #dbpediachapters

Looking forward to your news.

Yours

DBpedia Association