87 citations · 627 across the 29 of their papers we have counts for
6 papers · 1 filter
Time-translation invariance symmetry breaking hidden by finite-scale singularities
Ixandra Achitouv, Vincent Lahoche, Dine Ousmane Samary +1
In this paper, we consider a renormalization group perspective on the quantum dynamics of a particle moving in the Euclidean space through the complex landscape prov…
Signal inference in financial stock return correlations through phase-ordering kinetics in the quenched regime
Ixandra Achitouv, Vincent Lahoche, Dine Ousmane Samary
Financial stock return correlations have been analyzed through the lens of random matrix theory to differentiate the underlying signal from spurious correlations. The continuous sp…
Dynamical analysis of financial stocks network: improving forecasting using network properties
Ixandra Achitouv
Applying a network analysis to stock return correlations, we study the dynamical properties of the network and how they correlate with the market return, finding meaningful variabl…
Inferring financial stock returns correlation from complex network analysis
Ixandra Achitouv
Financial stock returns correlations have been studied in the prism of random matrix theory, to distinguish the signal from the "noise". Eigenvalues of the matrix that are above th…
Testing network clustering algorithms with Natural Language Processing
Ixandra Achitouv, David Chavalarias, Bruno Gaume
The advent of online social networks has led to the development of an abundant literature on the study of online social groups and their relationship to individuals' personalities…
Dynamical evolution of social network polarization and its impact on the propagation of a virus
Ixandra Achitouv, David Chavalarias
The COVID-19 pandemic that emerged in 2020 has highlighted the complex interplay between vaccine hesitancy and societal polarization. In this study, we analyse the dynamical polari…