Kolloquium Informatik

Michael Franz (Irvine), Cyber Attacks and Defenses: Trends, Challenges, and Outlook

Abstract: A cyber attacker needs to find only one way in, while defenders need to guard a lot of ground. Adversaries can fully debug and perfect their attacks on their own computers, exactly replicating the environment that they will later be targeting. This is the situation today, which has been exacerbated by an increasing trend towards a software "monoculture," in which there are only two major desktop operating systems, two major phone operating systems, one major office software suite, and so on. One possible defense is based on making the targets more dissimilar from each other, which raises the cost to attackers since they need to adapt their attack to each specific target. An alternative defense is based on creating a model of what a "correct" program does, and enforcing that model at run-time. I will discuss the advantages and disadvantages of these two approaches and their evolution over the past two decades. Unfortunately, attackers are evolving too, resulting in a "cat and mouse" situation in which defenses are almost always reactive to attacks that have already been observed. I will discuss my vision of how to get ahead of the attackers, and close by stating why, in spite of the bleak situation today, I am confident that we will eventually be able to stop most kinds of low-level cyber attacks completely.

Ort: Takustraße 9, Seminarrraum 049

25.04.2025 | 14:15 c.t.

Matthias Bentert: Planar min-sum disjoint paths in subexponential FPT time

Abstract: In this talk, I will present a subexponential parameterized algorithm for finding k vertex-disjoint paths of minimal total length between given terminal pairs in a planar graph parameterized by the number of edges in the solution. The algorithm generalizes to different settings such as edge-weighted graphs and/or directed graphs. We complement our algorithm by an almost matching ETH-based lower bound. This is joint work with Petr Golovach and Fedor Fomin.

Ort: Takustraße 9, Seminarrraum 049

13.12.2024 | 14:15 c.t.

Computer Science Colloquium on Antisocial Behaviour Detection and Mitigation in Online Platforms

When : Friday, 1.11. at 14:00 – 16:30 Where: Freie Universität Berlin, Institute of Computer Science, seminar room SR031, Arnimallee 7, 14195 Berlin Organiser: Prof. Dr. Adrian Paschke Program 14:00 – 14:30 Prof. Apostol: Exploring the Frontiers of Antisocial Detection and Analysis Through Deep Learning 14:30 – 15:00 Jan Fillies: Challenges of Hate Speech Detection in Online Communication Among Adolescents 15:00 – 15:30 Prof. Truica: What's next after Antisocial Behaviour Detection? Large Graph Network Immunization 15:30 – 16:30 Networking

Ort: Arnimallee 7, SR031

01.11.2024 | 14:00 s.t. - 16:30

Kolloquiumsvortrag Cristiano Premebida

Kolloquiumsvortrag Prof. Dr. Cristiano Premebida (University of Coimbra, Portugal)

Ort: Takustr. 9, SR051

25.04.2024 | 14:00 c.t. - 16:00

Kolloquiumsvortrag Youssef Nader

Kolloquiumsvortrag Youssef Nader (Freie Universität Berlin)

Ort: Arnimallee 7, SR031

01.12.2023 | 14:00 c.t. - 16:00

Kolloquiumsvortrag Prof. Dr. Markus Luczak-Roesch

Kolloquiumsvortrag Prof. Dr. Markus Luczak-Roesch (Victoria University of Wellington): I guess everything's an IGUS? Complexity science and potential avenues to advance our understanding of AI

Ort: SR031, Arnimallee 7, 14195 Berlin

03.11.2023 | 14:00 c.t.

Kolloquiumsvortrag Dr. Anna Hilsmann

Kolloquiumsvortrag Dr. Anna Hilsmann (Fraunhofer Heinrich-Hertz-Institut): Learning to be human: Von volumetrischem Video zu realistischen Avataren

Ort: SR 006, Takustr. 9, 14195 Berlin

22.02.2023 | 14:00 c.t.

Kolloquiumsvortrag Dr. Franz Zieris

Kolloquiumsvortrag Dr. Franz Zieris: Agiler Öltanker oder Freeclimbing? Von der Anforderung zur Umsetzung in Kundenprojekten

Ort: Raum 046, Takustr. 9, 14195 Berlin

12.01.2023 | 16:00 c.t.

Kolloquiumsvortrag Prof. Dr. Florin Manea

Kolloquiumsvortrag Prof. Dr. Florin Manea (Göttingen)

Ort: online via Zoom

21.01.2022 | 14:00 c.t.

Kolloquiumsvortrag Prof. Dr. Beishiu Liao

Kolloquiumsvortrag Beishui Liao, Zhejiang University, China

Ort: Takustr. 9, SR 005

08.11.2019 | 14:00 c.t.

Kolloquiumsvortrag Prof. Dr. Jan von Plato

Kolloquiumsvortrag Jan von Plato, Universität Helsinki

Ort: Takustr. 9, SR006

27.02.2019 | 13:30 s.t.

Kolloquiumsvortrag Prof. Dr. Eva-Maria Engelen

Kolloquiumsvortrag Eva-Maria Engelen, Universität Konstanz

Ort: Takustr. 9, SR006

27.02.2019 | 09:00 s.t.

Kolloquiumsvortrag Prof. Dr. Otfried Cheong

Kolloquiumsvortrag Prof. Dr. Otfried Cheong, KAIST.

Ort: Takustr. 9, Raum 053

22.06.2018 | 14:00 c.t.

Kolloquiumsvorträge S. Wimmer und M. Haslbeck

Kolloquiumsvorträge Simon Wimmer und Max Haslbeck, Technische Universität München

Ort: Takustr. 9, SR006

02.03.2018 | 14:00 c.t.

Kolloquiumsvortrag Prof. Kirk Visscher

Kolloquiumsvortrag Kirk Visscher, University of California

Ort: Takustr. 9, gr. Hörsaal

11.09.2017 | 14:00 c.t.

Kolloquiumsvortrag Laura Semini

Kolloquiumsvortrag Laura Semini Universität Pisa

Ort: SR 055, Takustr. 9

06.07.2017 | 16:00 c.t. - 18:00

Kolloquiumsvortrag Dr. Heiko Dörr

Ort: SR005, Takustr. 9

25.11.2016 | 14:00 c.t.

Vortrag R. Rojas, M. Esponda, C. Binying

Ort: Takustr. 9, SR 006

04.11.2016 | 14:00 c.t.

Kolloquiumsvortrag Hinze

Ort: Takustraße 9, Raum 046

14.10.2016 | 14:00 c.t.

Kolloquiumsvortrag Prof. Dr. Wolfgang Lenzen

Prof. Dr. Wolfgang Lenzen, Universität Osnabrück

Ort: Takustr. 9, Gr. Hörsaal

12.07.2016 | 16:00 c.t.

Kolloquiumsvortrag Dr. Luis A. Pineda

Dr. Luis A. Pineda Cortés, Universidad Nacional Autónoma de México, Departamento de Ciencias de la Computacíon

Ort: Arnimallee 7, SR031

05.07.2016 | 16:00 c.t.

Kolloquiumsvortrag PD Dr. Bernhard Renard

PD Dr. Bernhard Renard, Robert Koch-Institut Berlin

Ort: Takustr. 9, SR 055

01.07.2016 | 14:00 c.t.

Kolloquiumsvortrag Nalepa

Ort: Takustr. 9, Raum 055

13.05.2016 | 14:00 c.t.

Kolloquiumsvortrag Prof. Dr. Kurt Mehlhorn

Prof. Dr. Kurt Mehlhorn Max-Planck-Institut für Informatik, Saarbrücken

Ort: SR 049, Takustr. 9

18.06.2015 | 10:00 c.t. - 12:00

Kolloquiumsvortrag Dr. Christof Lutteroth

Dr. Christof Lutteroth, University of Auckland, New Zealand

Ort: Takustr. 9, SR 006

29.05.2015 | 14:00 c.t.

Kolloquiumsvortrag Prof. David Harel

Prof. David Harel

Ort: Raum 005, Takustr. 9, 14195 Berlin

10.04.2015 | 14:00 c.t. - 16:00

Kolloquiumsvortrag Prof. Dr. Aart Middeldorp

Prof. Dr. Aart Middeldorp, Universität Innsbruck

Ort: SR049, Takustr. 9, 14195 Berlin

13.03.2015 | 14:00 c.t.

Kolloquiumsvortrag Prof. Dr. Barbara Webb

Prof. Dr. Barbara Webb, University of Edinburgh

Ort: SR005, Takustr. 9, 14195 Berlin

20.02.2015 | 14:00 c.t.

Kolloquiumsvortrag Dr. Gerald Friedland

Dr. Gerald Friedland

Ort: Takustr. 9, Raum 049

26.09.2014 | 14:00 c.t. - 16:00

Kolloquiumsvortrag Dr. Tara Athan

CL2 Structural Semantics Structural Semantics of Common Logic (Edition 2) for Implementation in OntoMaven: Algebraic Structures and Algorithms

Ort: Takustr. 9, Raum 006

25.08.2014 | 15:00 c.t. - 17:00

Kolloquiumsvortrag Geoff Sutcliffe

Dr. Geoff Sutcliffe, Dept. of Computer Science, University of Miami

Ort: Takustr. 9, Hörsaal

08.07.2014 | 16:00 c.t.

Kolloquiumsvortrag Prof. Dr. Harold Boley

Prof. Dr. Harold Boley, Faculty of Computer Science, University of New Brunswick, Canada

Ort: Takustr. 9, Raum 049

04.07.2014 | 14:00 c.t. - 16:00