Search Results for author: Donatello Materassi

Found 6 papers, 0 papers with code

Granger-faithfulness and link orientation in network reconstruction

no code implementations3 Dec 2020 Mihaela Dimovska, Donatello Materassi

We formalize a variant of faithfulness for dynamic systems, called Granger-faithfulness, and for a large class of dynamic networks, we show that Granger-unfaithful systems constitute a Lebesgue zero-measure set.

An algorithm for reconstruction of triangle-free linear dynamic networks with verification of correctness

no code implementations5 Mar 2020 Mihaela Dimovska, Donatello Materassi

However, in many practical scenarios, strictly causal models are not adequate to describe the system and it is necessary to consider models with dynamics that include direct feedthrough terms.

An Algorithm to Learn Polytree Networks with Hidden Nodes

no code implementations NeurIPS 2019 Firoozeh Sepehr, Donatello Materassi

In this article, we develop an algorithm to exactly recover graphical models of random variables with underlying polytree structures when the latent nodes satisfy specific degree conditions.

Physics Informed Topology Learning in Networks of Linear Dynamical Systems

no code implementations27 Sep 2018 Saurav Talukdar, Deepjyoti Deka, Harish Doddi, Donatello Materassi, Misha Chertkov, Murti V. Salapaka

Learning influence pathways of a network of dynamically related processes from observations is of considerable importance in many disciplines.

Learning the Exact Topology of Undirected Consensus Networks

no code implementations29 Sep 2017 Saurav Talukdar, Deepjyoti Deka, Sandeep Attree, Donatello Materassi, Murti V. Salapaka

In this article, we present a method to learn the interaction topology of a network of agents undergoing linear consensus updates in a non invasive manner.

Time Series Time Series Analysis

Exact Topology Reconstruction of Radial Dynamical Systems with Applications to Distribution System of the Power Grid

no code implementations2 Mar 2017 Saurav Talukdar, Deepjyoti Deka, Donatello Materassi, Murti V. Salapaka

In this article we present a method to reconstruct the interconnectedness of dynamically related stochastic processes, where the interactions are bi-directional and the underlying topology is a tree.

Cannot find the paper you are looking for? You can Submit a new open access paper.