Seminar • Algorithms and Complexity — Local Graph ClusteringExport this event to calendar

Wednesday, April 29, 2020 2:15 PM EDT

Please note: This seminar will be given online.

Kimon Fountoulakis, Assistant Professor
David R. Cheriton School of Computer Science

Graphs, long popular in computer science and discrete mathematics, have received renewed interest because they provide a useful way to model many types of relational data. In biology, e.g., graphs are routinely used to generate hypotheses for experimental validation; in neuroscience, they are used to study the networks and circuits in the brain; and in social networks, they are used to find common behaviors of users. These modern graph applications require the analysis of large graphs, and this can be computationally expensive. Graph algorithms have been developed to identify and interpret small-scale local structure in large-scale data without the requirement to access all the data. 

In this talk, we will discuss state-of-the-art local spectral-, flow-, and Lp-norm-based algorithms that are specialized in finding small-scale clusters in large graphs without accessing the whole graph. We will discuss worst- and average-case theoretical results of these algorithms and we will demonstrate their empirical performance.

Location 
Online seminar
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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