Clustering is a fundamental task in data science that often arises in real-world applications. In the past decades several alternative formulations of the clustering problem have been proposed. These have led to a variety of algorithms, both exact and approximate, using a broad range of optimization techniques such as local search, core-sets, linear programming, etc. Studying the inherent hardness of clustering has led to deep theoretical results, combining insights from geometry and graph theory.
In this seminar/reading group we will study representative and recent results related to clustering, with a focus on algorithmic and complexity aspects. We present/discuss one or two papers each week.
Requirements: ALP3/HA or similar algorithmic background, mathematical maturity.
introduction and topics slides
feedback form for presentations
Presentation calendar:
Date | Topic | Presenter |
5th Nov | k-center greedy approximation and hardness | Clea Peter |
12th Nov | Wenli Xu | |
NP-hardness of k-means | Florian Alex | |
19th Nov | hierarchical clustering | Yao Zheng |
impossibility of clustering | Niclas Schwarzlose | |
26th Nov | sampling approximation for k-means |
Clemens Mosig |
LP-relaxation for median clustering | Hannah Troppens | |
3rd Dec | graph clustering: cut-based methods | Lilli Joppien |
spectral method for expander-decomposition | Theresa Allner | |
10th Dec | Tim Haarseim | |
explainable k-means clustering | Raimi Solorzano | |
17th Dec | clustering stability | Vitalij Krotov |
capacitated clustering | Sandra Lukanek | |
7th Jan |
Timo Oehme Claas Fandré |
|
14th Jan | spectral clustering | Boyan Hristov |
28th Jan |
Numan Fidan Fang Lin |
Course No | Course Type | Hours |
---|---|---|
19306711 | Seminar | 2 |
Time Span | 22.10.2021 - 18.02.2022 |
---|---|
Instructors |
László Kozma
|
0084b_k120 | 2006, BSc Mathematik (Mono), 120 LPs |
0084c_k120 | 2010, BSc Mathematik (Mono), 120 LPs |
0086c_k150 | 2014, BSc Informatik (Mono), 150 LPs |
0086d_k135 | 2014, BSc Informatik (Mono), 135 LPs |
0087d_k90 | 2015, BSc Informatik (Kombi), 90 LPs |
0088d_m60 | 2015, MSc Informatik (Kombi), 60 LPs |
0089b_MA120 | 2008, MSc Informatik (Mono), 120 LPs |
0089c_MA120 | 2014, MSc Informatik (Mono), 120 LPs |
0207b_m37 | 2015, MSc Informatik (Lehramt), 37 LPs |
0208b_m42 | 2015, MSc Informatik (Lehramt), 42 LPs |
0458a_m37 | 2015, MSc Informatik (Lehramt), 37 LPs |
0471a_m42 | 2015, MSc Informatik (Lehramt), 42 LPs |
0496a_MA120 | 2016, MSc Computational Science (Mono), 120 LPs |
0556a_m37 | 2018, M-Ed Fach 1 Informatik (Lehramt an Integrierten Sekundarschulen und Gymnasien), 37 LPs |
0557a_m42 | 2018, M-Ed Fach 2 Informatik (Lehramt an Integrierten Sekundarschulen und Gymnasien), 42 LPs |
Day | Time | Location | Details |
---|---|---|---|
Friday | 14-16 | T9/SR 005 Übungsraum | 2021-10-22 - 2022-02-18 |