no code implementations • 12 Apr 2023 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
On the other hand, a new family of Mixed Membership Stochastic Block Models (MMSBM) allows to model static labeled networks under the assumption of mixed-membership clustering.
no code implementations • 12 Dec 2022 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
Building on recent Dirichlet-Point processes literature, we introduce the Houston (Hidden Online User-Topic Network) model, that jointly considers all those features in a non-parametric unsupervised framework.
no code implementations • 12 Dec 2022 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
Finally, we develop a use case of the MPDHP on Reddit data.
no code implementations • 16 Sep 2022 • Gaël Poux-Médard
The amount of data that gets generated daily is beyond human comprehension, and appeals for new information retrieval strategies.
no code implementations • 16 Sep 2022 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
Most models of information diffusion online rely on the assumption that pieces of information spread independently from each other.
1 code implementation • 16 Sep 2022 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
In this work, we show that these models are all special cases of a single global framework: the Serialized Interacting Mixed membership Stochastic Block Model (SIMSBM).
no code implementations • 29 Jan 2022 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
PDHP also alleviates the hypothesis that textual content and temporal dynamics are perfectly correlated.
1 code implementation • 15 Sep 2021 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
Furthermore, the textual content of a document is not always linked to its temporal dynamics.
1 code implementation • 28 Apr 2021 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
We introduce an efficient method to infer both the entities interaction network and its evolution according to the temporal distance separating interacting entities; together, they form the interaction profile.
1 code implementation • 26 Apr 2021 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
This process allows nonparametric estimation of the number of clusters when partitioning datasets.
1 code implementation • 9 Apr 2020 • Gaël Poux-Médard, Julien Velcin, Sabine Loudcher
Here, we propose a new model, the Interactive Mixed Membership Stochastic Block Model (IMMSBM), which investigates the role of interactions between entities (hashtags, words, memes, etc.)