Search Results for author: Gabriele D'Acunto

Found 5 papers, 2 papers with code

Learning Multi-Frequency Partial Correlation Graphs

1 code implementation27 Nov 2023 Gabriele D'Acunto, Paolo Di Lorenzo, Francesco Bonchi, Stefania Sardellitti, Sergio Barbarossa

Despite the large research effort devoted to learning dependencies between time series, the state of the art still faces a major limitation: existing methods learn partial correlations but fail to discriminate across distinct frequency bands.

Time Series

Extracting the Multiscale Causal Backbone of Brain Dynamics

1 code implementation31 Oct 2023 Gabriele D'Acunto, Francesco Bonchi, Gianmarco De Francisci Morales, Giovanni Petri

The bulk of the research effort on brain connectivity revolves around statistical associations among brain regions, which do not directly relate to the causal mechanisms governing brain dynamics.

Learning Multiscale Non-stationary Causal Structures

no code implementations31 Aug 2022 Gabriele D'Acunto, Gianmarco De Francisci Morales, Paolo Bajardi, Francesco Bonchi

Our model allows sampling an MN-DAG according to user-specified priors on the time-dependence and multiscale properties of the causal graph.

Time Series Time Series Analysis +1

Multiscale Causal Structure Learning

no code implementations16 Jul 2022 Gabriele D'Acunto, Paolo Di Lorenzo, Sergio Barbarossa

The inference of causal structures from observed data plays a key role in unveiling the underlying dynamics of the system.

Computational Efficiency Time Series +1

The Evolving Causal Structure of Equity Risk Factors

no code implementations9 Nov 2021 Gabriele D'Acunto, Paolo Bajardi, Francesco Bonchi, Gianmarco De Francisci Morales

They link the evolution of the causal structure of equity risk factors with market volatility and a worsening macroeconomic environment, and show that, in times of financial crisis, exposure to different factors boils down to exposure to the market risk factor.

Management

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