Associate Professor

Web Information Systems, TU Delft


  • Between February and April 2019 I am co-teaching the MSc Information Retrieval course at TU Delft. All materials are available on GitHub.
  • Blog post about our latest Information Retrieval Journal article is up where we explore the impact of group size on collaborative search effectiveness.
  • Three colleagues and I have set up a monthly Delft AI meetup group. Join it if you are a local!
  • Blog post on EMNLP 2018 is up!
  • As of October 2018 I have created extensive lectures materials (assignments, transcripts, demo applications, exams) for my first year BSc Computer Science & Engineering web technology lectures.
  • If you are interested in a PhD or Postdoc position in information retrieval and related areas (NLP, data science) please get in touch!
  • Our paper Contrasting search as a learning activity with instructor-designed learning led by Felipe Moraes with Sindunuraga Rikarno Putra, a Master student in my team, as second author, accepted as a full paper at CIKM 2018 (blog post).


Since 2013, I have been working as staff member (Assistant Prof since 2013 and Associate as of 2018) at the Web Information Systems group, Delft University of Technology. Between 2011 and 2012 I was a Postdoc in the same group. I received my PhD in 2010 from the University of Twente, where I worked in the Human Media Interaction group. The Otto-von-Guericke University of Magdeburg in Germany was my home during my undergraduate years as a student in computer science. In the past, I have worked on a variety of topics in the fields of information retrieval & data science, including query performance prediction (the topic of my PhD thesis), social search, computational social science, learning to search and IR for specific user groups.

I have diverse research interests and am always happy to dive into a new area. Together with a number of PhD students I am currently focusing on large-scale learning analytics and how to incorporate search into the human learning process at scale (lately through the use of conversational search). In 2016 and 2017 I have been awarded two prestigious personal grants by the Netherlands Organisation for Scientific Research (NWO) with a total funding of more than 1 million euros; this translates into 4-5 PhD/postdoc positions in the developing “search as learning” research area; take a look at the Dagstuhl Seminar I co-organized on the topic to get an idea of what it is about. TU Delft is a very active provider of Massive Open Online Courses (MOOCs) on the edX platform, which provides a rich experimental playground for my Lambda-Lab team.

In 2018, I gave an invited keynote at the French IR conference CORIA 2018 on the topic of Search as Learning:

A very condensed overview of my team’s research efforts over the last ~4 years can be found here (lots of MOOC work as well as search as learning):


PO Box 5031
2600 GA Delft
The Netherlands

Office: Van Mourik Broekmanweg 6, East Wing 04.100
Email: c.hauff[at] or claudia.hauff[at]

Current members of my lab

Past members of my lab

  • Ke Tao (PhD student, graduated in 2014)
  • Mónica Marrero (Research engineer, 2017-18)

Lab software

  • SearchX is a scalable collaborative search system, developed to research large-scale search and sensemaking experiments. Lead developer is Felipe Moraes.
  • APONE is an academic environment for online experiments, that we have used in our research and teaching. Lead developer is Mónica Marrero.
  • SIREN is a simulation framework for understanding the effects of recommender systems in online news environments. Lead developer is Dimitrios Bountouridis.


  • NWO Aspasia grant (100,000€) as a top-up of my NWO VIDI (50K for my research, 50K for diversity measures in the faculty), September 2018.
  • NWA Startimpulsprogramma VWData (325,000€) awarded together with 2 co-PIS. A two-year Postdoc position will be funded within a work package that considers fairness in news recommenders.
  • NWO VIDI grant (800,000€) for my proposal SearchX: Integrating search and sensemaking into large-scale open online learning, May 2017 (personal grant, 15% acceptance rate)
  • NWO TOP grant (226,000€) to conduct “innovative or high-risk scientific research that addresses questions of high quality and urgency;” specifically I will push the boundaries of large-scale collaborative search, November 2016 (personal grant, 23% acceptance rate)
  • Grant (33,000€) from the Leiden-Delft-Erasmus Centre for Education and Learning to conduct research on the benefits of eyetracking in massive open online learning, November 2016
  • TU Delft Education Research tender (2,500€, 1 co-PI) to bring real-time teaching and learning analytics into the classroom, July 2016
  • TU Delft Study Success tender (3,000€, 1 co-PI) to further improve teaching in the Bachelor, September 2015
  • TU Delft Blended Education tender (10,000€, 1 co-PI) to improve teaching in the Bachelor, September 2014

Organizational duties and activities