Nowruz 93

“To study and not think is a waste. To think and not study is dangerous…” – Confucius

+ Spending Nowruz (the Iranian New Year) in Iran is always enjoyable, You will meet your family and all your relatives and friends whom you haven’t seen for a while! You will eat a tons of nice food and sweets, will watch a lot of entertaining TV programs, and will smell the pleasant aroma of the spring to get refreshed after one year of the hard work. This year, Nowruz was more memorial for us because we experienced another occasion there — my brother’s wedding. Hamed and Zahra just got married and brought some nice moments for us during our stay at Iran.

+ The new year would be a very busy year for me! Hopefully I will finish writing my PhD thesis and will think one step forward on my future career.

+ I will be at ESWC 2014 in May to present conTEXT for lightweight text analytics (presentation at LOD2 webinar). Continue reading

conTEXT : One click text analytics thanks to Linked Data

Recently I was working on a tool for lightweight text analytics using Linked Data. It is called conTEXT since it performs analyzes with (Latin `con’) text and provides contextual visualizations for discovered entities in text. conTEXT is now publicly available at

conTEXT workflow

The process of text analytics in conTEXT starts by collecting information from the web. conTEXT utilizes standard information access methods and protocols such as RSS/ATOM feeds, SPARQL endpoints and REST APIs as well as customized crawlers for WordPress and Blogger to build a corpus of information relevant for a certain user. The assembled text corpus is then processed by Natural Language Processing (NLP) services (currently FOX and DBpedia-Spotlight) which link unstructured information sources to the Linked Open Data cloud through DBpedia. The processed corpus is then further enriched by de-referencing the  DBpedia URIs as well as  matching with with pre-defined natural-language patterns for DBpedia predicates (BOA patterns). The processed data can also be joined with other existing corpora in a text analytics mashup. The creation of analytics mashups requires dealing with the heterogeneity of different corpora as well as the heterogeneity of different NLP services utilized for annotation. conTEXT employs NIF (NLP Interchange Format) to deal with this heterogeneity. The processed, enriched and possibly mixed results are presented to users using different views for exploration and visualization of the data. Additionally, conTEXT provides an annotation refinement user interface based on the RDFa Content Editor (RDFaCE) to enable users to revise the annotated results. User-refined annotations are sent back to the NLP services as feedback for the purpose of learning in the system.

For more information on conTEXT visit:

WADE across the Silicon Valley…

Learn to say ‘no’ to the good so you can say ‘yes’ to the best – John C. Maxwell

Last week I got this chance to visit Los Angeles and San Francisco, CA. It was a great experience for me to see a new continent and of course a new culture!
I could divide my US experience into the following WADE:
* Wait
These days, being an Iranian might make you a lot of troubles, especially when you want to apply for the US visa and more especially when you want to attend a conference which has information security, knowledge extraction, computer and these sort of keywords! Actually all the keywords are reserved for Iranians because everything is related to everything so comes nuclear energy at the end!
It took me more than two months to get cleared and to successfully receive my single entry visa for US. Fortunately, entering US after this long procedure was not so difficult, just a few questions from inspector Gadget at the Amsterdam Schiphol airport before departuring and a kind welcome at the LAX airport!
* Academia
Staying in San Francisco for 5 days gave me a great opportunity to visit the world center of IT, Silicon Valley as well as a couple of top universities in the world.
San Francisco is the most densely settled large city in the state of California. More crowded than what I had imagined!
In the first day, I attended the CIKM2013 and ESAIR2013 (Sixth International Workshop on Exploiting Semantic Annotations in Information Retrieval). I met Krzysztof Janowicz and Dan Roth and had some chats on semantic annotation topics. The workshop concluded with a long discussion to disambiguate the definition of Semantic Annotation. At the end, I do not think we could come to an agreement though we all had the same meaning in mind but with different terms!

Continue reading

Dance of Leaves…

“Be nice to people on your way up because you’ll meet them on your way down.” – Wilson Mizner

Autumn is already started! Here in Germany, it won’t take so long to shift from summer to winter therefore autumn has a short life span! It is really a strange season for me, a season which brings a flashback to the past, reminds me of the first days of school and makes a good motivation for spring! Nothing seems to be absolutely binary in this world, there is always an adoption phase when there should be a shift from 1 to 0 so that the gaps are filled! I really enjoy listening to Fariborz Lachini‘s musics, especially “dance of leaves”:

I watched  “The Past” directed by Asghar Farhadi in the weekend. It was a wonderful movie like his previous movies. A film which tells you a story from different perspectives. It continues to clarify the issue by collecting facts from different persona who have different concerns. Suddenly, you will come to an open end which could be judged differently by the different perceptions.

The recent highlights:


“If you want to live a happy life, tie it to a goal, not to people or things.” — Albert Einstein

+ Summer is here! Summer always reminds me of great events. I actually started my life in summer (June) and enriched it by marriage in summer (July)! Most of my nice and memorial trips have been taking place during the summer. My favorable fruits (cherries, berries, peaches, apricots, nectarines, plums, melons) are all in summer! All these facts are good reasons to forget about the hot and humid weather in this summer which makes working very hard (especially in Germany where hot summer is not really defined so you do not get coolers everywhere but heaters!).

+ I created a simple mobile version for Pharmer which can serve as a drug assistant. You can test it here. We are going to present a paper on Pharmer in ICSCC 2013. Also my paper about WYSIWYM and RDFaCE for got accepted in WISE2013. Bita is also going to present Pharmer at Dresden Summer School on Technology Transfer in Life Sciences.

Preview release of RDFaCE special edition for

During the last weeks I was working hard on the next release of RDFaCE . RDFaCE implements the WYSIWYM (What You See Is What You Mean) concept in order to facilitate the process of semantic content authoring.RDFaCE

The new version of RDFaCE is focused on . You can create RDFa or Microdata annotations based on the schemas defined by It will help to improve the SEO of your Website.

The main features of this new version include*:


*Of course it is only a preview release and might have some bugs.Please report the possible bugs using our issue tracker. As our next step, we will integrate the functionality of previous versions of RDFaCE with support for

Tagged , ,

Back to

Knowledge speaks, but wisdom listens. –Jimi Hendrix

+ I am still working on SlideWiki platform. We have already started importing some popular and high quality Semantic Web lecture series into SlideWiki. We also have plan to create the corresponding translations in at least 10 other languages (For example Persian). The mobile version of SlideWiki is just started and is under progress. We hope that SlideWiki will enable Many people in the world to access to high quality educational material. If you also want to help us in creating great educational resources:

  • Look for decks at SlideWiki, whose domain you know
  • Review the content of decks and help improving them
  • Add self-assessment questions to the slides
  • Translate decks covering topics you know well into your mother tongue
  • Look for existing presentations and e-learning material, which could be imported into SlideWiki

+ How is SlideWiki different?

Continue reading


Get every new post delivered to your Inbox.