Seminar über Algorithmen: Clustering W21/22
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Description

Seminar on Algorithms: Clustering

 

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.

welcome announcement

 

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

k-means++

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

correlation clustering

Tim Haarseim
  explainable k-means clustering Raimi Solorzano
17th Dec clustering stability Vitalij Krotov
  capacitated clustering Sandra Lukanek
7th Jan

smoothed analysis of k-means

streaming clustering

Timo Oehme

Claas Fandré

14th Jan spectral clustering Boyan Hristov
28th Jan

local search for clustering I

local search for clustering II

Numan Fidan

Fang Lin

 

Basic Course Info

Course No Course Type Hours
19306711 Seminar 2

Time Span 22.10.2021 - 18.02.2022
Instructors
László Kozma

Study Regulation

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

Seminar über Algorithmen: Clustering W21/22
to Whiteboard Site

Main Events

Day Time Location Details
Friday 14-16 T9/SR 005 Übungsraum 2021-10-22 - 2022-02-18

Seminar über Algorithmen: Clustering W21/22
to Whiteboard Site

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Seminar über Algorithmen: Clustering W21/22
to Whiteboard Site

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