Search Results for author: Lionel Tabourier

Found 6 papers, 4 papers with code

BBK: a simpler, faster algorithm for enumerating maximal bicliques in large sparse bipartite graphs

1 code implementation7 May 2024 Alexis Baudin, Clémence Magnien, Lionel Tabourier

We also provide an open-access implementation of BBK in C++, which we use to experiment and validate its efficiency on massive real-world datasets and show that its execution time is shorter in practice than state-of-the art algorithms.

LSCPM: communities in massive real-world Link Streams by Clique Percolation Method

1 code implementation21 Aug 2023 Alexis Baudin, Lionel Tabourier, Clémence Magnien

We present a novel algorithm that adapts CPM to link streams, which has the advantage that it allows us to speed up the computation time with respect to the existing DCPM method.

Community Detection

Faster maximal clique enumeration in large real-world link streams

1 code implementation1 Feb 2023 Alexis Baudin, Clémence Magnien, Lionel Tabourier

We take this idea as a starting point to propose a new algorithm which matches the cliques of the instantaneous graphs formed by links existing at a given time $t$ to the maximal cliques of the link stream.

Testing the Impact of Semantics and Structure on Recommendation Accuracy and Diversity

1 code implementation7 Nov 2020 Pedro Ramaciotti Morales, Lionel Tabourier, Raphaël Fournier-S'niehotta

We evaluate the effect of different parts of a HIN on the accuracy and the diversity of recommendations, then investigate if these effects are only due to the semantic content encoded in the network.

Recommendation Systems

Measuring Diversity in Heterogeneous Information Networks

no code implementations5 Jan 2020 Pedro Ramaciotti Morales, Robin Lamarche-Perrin, Raphael Fournier-S'niehotta, Remy Poulain, Lionel Tabourier, Fabien Tarissan

In this article, we develop a formal framework for the application of a large family of diversity measures to heterogeneous information networks (HINs), a flexible, widely-used network data formalism.

Information Retrieval Recommendation Systems +1

RankMerging: A supervised learning-to-rank framework to predict links in large social network

no code implementations9 Jul 2014 Lionel Tabourier, Daniel Faria Bernardes, Anne-Sophie Libert, Renaud Lambiotte

Uncovering unknown or missing links in social networks is a difficult task because of their sparsity and because links may represent different types of relationships, characterized by different structural patterns.

feature selection Learning-To-Rank

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