Advanced School for Computing and Imaging (ASCI)

ASCI office
Delft University of Technology
Building 28, room 04.E120
Van Mourik Broekmanweg 6
2628 XE – DELFT, The Netherlands

P: +31 15 27 88032

Visiting hours office
Monday, Tuesday, Thursday: 10:00 – 15:00


The ASCI office is located at the Delft University of Technology campus.  It is easily accessible by bicycle, public transport and car. The numbers of buildings can help you find your way around the campus. Make sure you remember the name and building number of your destination.

Contact us at +31 15 278 8032 or send us an email at

Dimensionality-Reduction Algorithms for Progressive Visual Analytics

Dimensionality-Reduction Algorithms for Progressive Visual Analytics

Author : Nicola Pezzotti
Promotor(s) : Dr. A. Vilanova / Prof. dr. E. Eisemann
University : Delft University of Technology
Year of publication : 2019
Link to repository : TU Delft Research Repository


In this thesis, we present novel algorithmic solutions that enable integration of non-linear dimensionality-reduction techniques in visual analytics systems. Our proposed algorithms are, not only much faster than existing solutions, but provide richer insights into the data at hand. This result, is achieved by introducing new data processing and optimization techniques and by embracing the recently introduced concept of Progressive Visual Analytics; a computational paradigm that enables the interactivity of complex analytics techniques by means of visualization as well as interaction with intermediate results. Moreover, we present several applications that are designed to provide unprecedented analytical capabilities in several domains. These applications are powered by the algorithms introduced in this dissertation and led to several discoveries in areas ranging from the biomedical research field, to social-network data analysis and machine-learning models interpretability.