no code implementations • 21 Sep 2020 • Talayeh Aledavood, Ilkka Kivimäki, Sune Lehmann, Jari Saramäki
We do not observe any clear emergent categories of people based on the weights, but individuals are rather placed on a continuous spectrum according to the timings of their activities.
no code implementations • 12 Jul 2018 • Bertrand Lebichot, Guillaume Guex, Ilkka Kivimäki, Marco Saerens
The present work extends the randomized shortest-paths framework (RSP), interpolating between shortest-path and random-walk routing in a network, in three directions.
no code implementations • 7 Jun 2018 • Guillaume Guex, Ilkka Kivimäki, Marco Saerens
When the temperature is low, this formalism is shown to be equivalent to a relaxation of the optimal transport problem on a network where paths carry a flow between two discrete distributions on nodes.
no code implementations • 27 Feb 2013 • Kevin Françoisse, Ilkka Kivimäki, Amin Mantrach, Fabrice Rossi, Marco Saerens
This probability captures a notion of relatedness between nodes of the graph: two nodes are considered as highly related when they are connected by many, preferably low-cost, paths.
no code implementations • 7 Dec 2012 • Ilkka Kivimäki, Masashi Shimbo, Marco Saerens
In particular, we see that the results obtained with the free energy distance are among the best in all the experiments.