Dimitar Dimitrov


Dimitar Dimitrov

PhD student
Knowledge Technologies for the Social Sciences
GESIS Leibniz - Institute for the Social Sciences, Cologne, Germany



About

Hello, my name is Dimitar Dimitrov. I am a PhD candidate at the GESIS - Leibniz Institute for the Social Sciences, Cologne, Germany. My PhD thesis is supervised by Prof. Dr. Markus Strohmaier. Additionally, I am involved in the da|ra project aimed to deliver a software infrastructure for assigning DOI names to social and economic datasets. Between 2004 and 2009, I studied Software Engineering at the University of Applied Sciences Konstanz, Konstanz, Germany where in 2011 I also obtained my master degree in Computer Science.

News

Currently, I am working mainly on two projects:

  • Literature overview on tag based navigation in which I would like to give a summary on how tags and folksonomies can be used to access information.
  • Extending the clickstream dataset extracted from the request logs of the English Wikipedia by network structural, visual and textual features for each request-response pair (transition). With the extended dataset I would like to answer questions with respect to the navigation behavior of the Wikipedia users, i.e., to what extend depends the success of a link on different features types.

  • In the summer of 2014 I was a visiting scientist at the TU Graz, Graz, Austria where I worked with Prof. Dr. Denis Helic. During my stay there I worked on measuring the structural properties of different network types. This work built the foundation of the paper titled "The Role of Structural Information for Designing Navigational User Interfaces" accepted at the 26th ACM Conference on Hypertext and Social Media, Cyprus, 2015.

    Research

    The research fields that I am interested in are network science and data science, but I try to focus my research around one word - navigation. Navigation is the process of following links in order to find a specific information piece. The main advantage of navigation over search lies in the human's congnitive abilities and in the fact that poeple are better in recognizing things than describing them. That is why, picking the right link is much easier than formulating a search query. With my research, I want to study the decisive points for building software systems that support efficient navigation: the social processes responsible for shaping an information space, designing user interfaces able to expose the structure of an information space and modeling user navigation.

    Publications

  • D. Dimitrov, P. Singer, D. Helic and M. Strohmaier. The Role of Structural Information for Designing Navigational User Interfaces. In 26th ACM Conference on Hypertext and Social Media (HT'2015), 1-4 September, Middle East Technical University Northern Cyprus Campus, Cyprus, 2015. (pdf)(pdf with corrected stretch)
  • D. Dimitrov, P. Singer, F. Lemmerich and M. Strohmaier. Visual Positions of Links and Clicks on Wikipedia. In 25th International World Wide Web Conference (WWW'2016), 11-15 April, Montreal, Canada, 2016. Poster submission. (pdf), (code), (poster)
  • M. Becker, H. Mewes, A. Hotho, D. Dimitrov, F. Lemmerich and M. Strohmaier. SparkTrails: A MapReduce Implementation of HypTrails for Comparing Hypotheses About Human Trails. In 25th International World Wide Web Conference (WWW'2016), 11-15 April, Montreal, Canada, 2016. Poster submission. (pdf)
  • D. Lamprecht, D. Dimitrov, D. Helic and M. Strohmaier. Evaluating and Improving Navigability of Wikipedia: A Comparative Study of Eight Language Editions. In 12th International Symposium on Open Collaboration (OpenSym'2016), Berlin, Germany, 2016. (pdf)
  • D. Dimitrov. Modeling Navigation in Information Networks. In Doctoral Consortium at the 10th ACM International Conference on Web Search and Data Mining (WSDM'2017), 6-10 February, Cambridge, United Kingdom, 2017. (pdf)
  • D. Dimitrov*, P. Singer*, F. Lemmerich and M. Strohmaier. What Makes a Link Successful on Wikipedia? In 26th International World Wide Web Conference (WWW'2017), 3-7 April, Perth, Australia, 2017. (pdf), (code)(to appear)(* equal contribution)

  • Reviewing Activities

    Conferences and Workshops

  • 24th International World Wide Web Conference - Web Science Track
  • ACM Web Science 2015 Conference, WebSci 2015
  • Journals

  • Information Processing and Management (2015)

  • Contact