Row 1:Heiko Paulheim, Rainer Gemulla, Simone Ponzetto, Heiner Stuckenschmidt, Christian Bizer, Margret Keuper, Goran Glavaš

Row 2:Taha Alhersh, Sven Hertling, Robert Litschko, Dr. Ines Rehbein, Anna Primpeli, Chia-Chien Hung, Dr. Ioana Hulpus, Sarah Alturki

Row 3: Jovita Lukasik, Federico López, Samuel Broscheit, Manuel Fink, Nils Wieber, Christian Schindler, Sascha Marton, Nils Wilken

Row 4: Amirhossein Kardoost, Jan Portisch, Oliver Frendo, Ralph Peeters, Dr. Christian Bartelt, Kristian Kolthoff

Row 5: Daniel Ruffinelli, Alexander Diete, Bernhard Schäfer, Dr. Christian Meilicke, Diana Sola, Jonathan Kobbe, Christian Schreckenberger, Nicolas Heist, Christoph Kilian Theil

Row 1:  Margret Keuper, Heiko Paulheim, Rainer Gemulla, Heiner Stuckenschmidt, Christian Bizer, Goran Glavaš

Row 2:  Taha Alhersh, Robert Litschko, Anna Primpeli, Dr. Ioana Hulpus, Dr. Dmitry Ustalov, Kiril Gashteovski, Sarah Alturki, Jörn Hees

Row 3:  Oliver Lehmberg, Yaser Oulabi, Jakob Huber, Manuel Fink, Kristian Kolthoff, Christian Schindler

Row 4:  Sven Hertling, Jan Portisch, Fritz Kron, Markus Oestringer, Jonathan Kobbe, David Friede, Stefan Falke, Dr. Christian Bartelt

Row 5:  Sascha Krstanovic, Alexander Diete, Daniel Ruffinelli, Dr. Christian Meilicke, Sebastian Kotthoff, Stefan Kain, Anne Lauscher, Dr. Federico Nanni, Christoph Kilian Theil

Row 6:  Nicolas Heist, Samuel Broscheit, Jovita Lukasik

Not on the image: Simone Ponzetto, Dr. Melisachew Wudage Chekol, Fabian Burzlaff, Amirhossein Kardoost, Michael Pernpeinter, Christian Schreckenberger, Nils Wilken

Data and Web Science Group in the past.

from left to right:

Row 1: Margret Keuper, Heiko Paulheim, Simone Ponzetto, Heiner Stuckenschmidt, Christian Bizer, Goran Glavaš
Row 2: Taha Alhersh, Samuel Broscheit, Kiril Gashteovski, Dr. Dmitry Ustalov, Manuel Fink, Oliver Lehmberg
Row 3: Dr. Sanja Štajner, Anna Primpeli, Dr. Ioana Hulpus, Anne Lauscher, Jonathan Kobbe
Row 4: Sven Hertling, Amirhossein Kardoost, Stefan Kain, Sebastian Kotthoff, Dr. Christian Meilicke
Row 5: Daniel Ruffinelli, Dr. Melisachew Wudage Chekol, Alexander Diete, Nicolas Heist, Christian Schreckenberger, Markus Oestringer, Fabian Burzlaff

Not on the image: Rainer Gemulla, Dr. Federico Nanni, Yaser Oulabi, Christoph Kilian Theil

Data and Web Science Group in the past.

from left to right: 
Row 1: Heiko Paulheim, Heiner Stuckenschmidt, Rainer Gemulla, Simone Ponzetto, Christian Bizer, Margret Keuper
Row 2: Taha Alhersh, Yaser Oulabi,  Alexander Diete, Oliver Lehmberg, Goran Glavaš
Row 3: Sven Hertling, Dr. Sanja Štajner, Jakob Huber, Timo Sztyler, Manuel Fink
Row 4: Amirhossein Kardoost, Samuel Broscheit, Markus Oestringer, Sebastian Kotthoff, Dr. Christian Meilicke,
Elena Kuss, Benedikt Kleppmann, Robert Litschko
Row 5: Daniel Ruffinelli, Yanjie Wang, Dr. Melisachew Wudage Chekol, Dr. Federico Nanni, Marco Rovera, Anne Lauscher
Row 6: Kiril Gashteovski, Christian Schreckenberger, Fabian Burzlaff, Dr. Christian Bartelt, André Melo,
Christoph Kilian Theil

from left to right: 
Row 1: Heiko Paulheim, Christian Bizer, Heiner Stuckenschmidt, Rainer Gemulla
Row 2: Margret Keuper, Simone Ponzetto, Goran Glavaš
Row 3: Timo Sztyler, Kiril Gashteovski, Jakob Huber
Row 4: Amirhossein Kardoost, Dominique Ritze, Samuel Broscheit, Anna Primpeli
Row 5: Taha Alhersh, Yaser Oulabi, Lydia Weiland, Markus Oestringer
Row 6: Federico Nanni, Alexander Diete, Daniel Ruffinelli, Sven Hertling
Row 7: Petar Ristoski, Sanja Štajner, Benedikt Kleppmann
Row 8: André Melo, Melisachew Wudage Chekol, Oliver Lehmberg, Jörg Schönfisch
Row 9: Stefano Faralli, Christoph Kilian Theil, Christian Meilicke

Not on the image:
Ioana Hulpus, Erman Acar, Elena Kuss, Anne Lauscher, Yanjie Wang, Dmitry Ustalov, Sebastian Kotthoff

from left to right: 
Row 1: Rainer Gemulla, Heiner Stuckenschmidt, Christian Bizer, Simone Ponzetto
Row 2: Heiko Paulheim, Federico Nanni, Laura Dietz
Row 3: Jörg Schönfisch, Robert Meusel, Lydia Weiland, Michael Schuhmacher
Row 4: Christian “Manni” Meilicke, Oliver Lehmberg,  Jakob Huber, Kiril Gashteovski
Row 5: Christian Bartelt, Andre Melo, Quim Casals
Row 6: Elena Kuss, Timo Sztyler, Erman Acar
Row 7: Stefano Faralli, Camilo Thorne, Johannes Knopp, Melisachew Wudage Chekol

Not on the image: Yaser Oulabi, Dominique Ritze, Petar Ristoski, Cäcilia Zirn

from left to right: 
Row 1: Heiner Stuckenschmidt, Simone Ponzetto, Arnab Dutta, Christian Bizer
Row 2: Johanna Völker, Dominque Ritze, Heiko Paulheim
Row 3: Max Schmachtenberg, Johannes Knopp, Michael Schuhmacher
Row 4: Andre Melo, Jörg Schönfisch, Oliver Lehmberg
Row 5: Daniel Fleischhacker, Lydia Weiland, Robert Meusel, Wanny Weldesus
Row 6: Kai Eckert, Cäcilia Zirn, Rim Helaoui, Sebastian Kotthoff, Christian “Manni” Meilicke, Volha Bryl
Row 7: Erman Acar, Petar Petrovski, Petar Ristoski