Skip to content

Katja Niemann

  • Dr. rer. nat.
  • Data Scientist
  • 34PublicationsNumber of items in Katja's My Publications folder on Mendeley.
  • 60Followers

Recent publications

  • Spiral me to the core: Getting a visual grasp on text corpora through clusters and keywords

    • Scheffel M
    • Niemann K
    • Rojas S
    • et al.
  • Usage-Based Clustering of Learning Resources to Improve Recommendations

    • Niemann K
    • Wolpers M

Professional experience

Data Scientist


March 2016 - Present


Fraunhofer Institute for Applied Information Technology

March 2008 - February 2016(8 years)


Dr. rer. nat

Rheinisch Westfalische Technische Hochschule Aachen

January 2010 - March 2015(5 years)

Magistra Artium

Ruprecht Karls Universitat Heidelberg

October 2002 - September 2007(5 years)


At the Fraunhofer Institute for Applied Information Technology (FIT), I am part of the CAPLE (Context and Attention in Personalized Learning Environments) group that aims to support teachers and learners in universities and at the workplace by providing technical solutions to e.g. improve the access of learning materials or analyse the learning behaviour. In my PhD thesis, I analysed the usage of objects (e.g. text document or movies) in online portals to infer semantic similarities between them without considering their content or any additional semantic metadata. Using this information, the performance of recommender systems that deal with sparse data can be improved in terms of accuracy, novelty, and diversity.

Following (35)

Explore network