Publications related to The micro-world of cographs

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Spectrally approximating large graphs with smaller graphs

Pierre Vandergheynst, Andreas Loukas

How does coarsening affect the spectrum of a general graph? We provide conditions such that the principal eigenvalues and eigenspaces of a coarsened and original graph Laplacian matrices are close. The achieved approximation is shown to depend on standard ...

2018

Scaling a Reliable Distributed System

Alexandre David Olivier Maurer

We consider the problem of reliably connecting an arbitrarily large set of computers (nodes) with communication channels. Reliability means here the ability, for any two nodes, to remain connected (i.e., their ability to communicate) with probability at le ...

LPD EPFL2016

Detecting nanoscale vibrations as signature of life

Giovanni Dietler, Sandor Kasas, Giovanni Longo, Francesco Simone Ruggeri, Petar Stupar

The existence of life in extreme conditions, in particular in extraterrestrial environments, is certainly one of the most intriguing scientific questions of our time. In this report, we demonstrate the use of an innovative nanoscale motion sensor in life-s ...

National Academy of Sciences2015

Coloring Relatives of Interval Overlap Graphs via On-line Games

Bartosz Maria Walczak

The main goal of this paper is to formalize and explore a connection between chromatic properties of graphs defined by geometric representations and competitivity analysis of on-line algorithms. This connection became apparent after the recent construction ...

Springer-Verlag Berlin2014

Triangle-free intersection graphs of line segments with large chromatic number

Bartosz Maria Walczak, Michal Lason

In the 1970s Erdos asked whether the chromatic number of intersection graphs of line segments in the plane is bounded by a function of their clique number. We show the answer is no. Specifically, for each positive integer k we construct a triangle-free fam ...

Academic Press Inc Elsevier Science2014

Wavelet Frames On Graphs Defined By Fmri Functional Connectivity

Dimitri Nestor Alice Van De Ville, Nora Leonardi

Multiscale representations such as the wavelet transform are useful for many signal processing tasks. Graphs are flexible models to represent complex networks and a spectral graph wavelet transform (SGWT) has recently been developed as a generalization of ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Beyond Graphs: A New Synthesis

Dario Floreano, Claudio Mattiussi, Daniel Marbach, Peter Dürr

Artiﬁcial neural networks, electronic circuits, and gene networks are some examples of systems that can be modeled as networks, that is, as collections of interconnected nodes. In this paper we introduce the concept of terminal graph (t-graph for short), w ...

2011

Split-critical and uniquely split-colorable graphs

Dominique de Werra, Bernard Ries, Tinaz Ekim

The split-coloring problem is a generalized vertex coloring problem where we partition the vertices into a minimum number of split graphs. In this paper, we study some notions which are extensively studied for the usual vertex coloring and the cocoloring p ...

2010

The micro-world of cographs

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Spectrally approximating large graphs with smaller graphs

Scaling a Reliable Distributed System

Detecting nanoscale vibrations as signature of life

Coloring Relatives of Interval Overlap Graphs via On-line Games

Triangle-free intersection graphs of line segments with large chromatic number

Wavelet Frames On Graphs Defined By Fmri Functional Connectivity

Beyond Graphs: A New Synthesis

Split-critical and uniquely split-colorable graphs

Weighted coloring on planar, bipartite and split graphs: Complexity and approximation

Characterizing Path Graphs by Forbidden Induced Subgraphs

Characterizing Path Graphs by Forbidden Induced Subgraphs

Weighted coloring on planar, bipartite and split graphs: Complexity and approximation

Triangle-free intersection graphs of line segments with large chromatic number

Beyond Graphs: A New Synthesis

Split-critical and uniquely split-colorable graphs

Detecting nanoscale vibrations as signature of life

Spectrally approximating large graphs with smaller graphs

Scaling a Reliable Distributed System

Wavelet Frames On Graphs Defined By Fmri Functional Connectivity

Coloring Relatives of Interval Overlap Graphs via On-line Games