PrismBreak: Exploration of Multi‐Dimensional Mixture Models
Abstract In data science, visual data exploration becomes increasingly more challenging due to the continued rapid increase of data dimensionality and data sizes. To manage complexity, two orthogonal approaches are commonly used in practice: First, data is frequently clustered in high‐dimensional space by fitting mixture models composed of normal ...
B. Zahoransky, T. Günther, K. Lawonn
wiley +1 more source
The Interaction between Credit Constraints and Uncertainty Shocks
Abstract This paper proposes a novel link between credit markets and uncertainty shocks. We introduce a role for credit uncertainty via collateral constraints in an otherwise standard real business cycle (RBC) model and show that an increase in credit uncertainty triggers a precautionary response that interacts with the collateral constraint to ...
PRATITI CHATTERJEE+2 more
wiley +1 more source
A design-based framework for optimal stratification using super-population models with application on real data set of breast cancer. [PDF]
Danish F.
europepmc +1 more source
An alternating iterative procedure for the Cauchy problem for the Helmholtz equation
F. Berntsson+3 more
semanticscholar +1 more source
Local powers of least‐squares‐based test for panel fractional Ornstein–Uhlenbeck process
In recent years, significant advancements have been made in the field of identifying financial asset price bubbles, particularly through the development of time‐series unit‐root tests featuring fractionally integrated errors and panel unit‐root tests.
Katsuto Tanaka, Weilin Xiao, Jun Yu
wiley +1 more source
Weak solutions to gradient flows of functionals with inhomogeneous growth in metric spaces. [PDF]
Górny W.
europepmc +1 more source
On the Cauchy problem for weakly hyperbolic systems [PDF]
Hideo Yamahara
openalex +1 more source
Asymmetric stable stochastic volatility models: estimation, filtering, and forecasting
This article considers a stochastic volatility model featuring an asymmetric stable error distribution and a novel way of accounting for the leverage effect. We adopt simulation‐based methods to address key challenges in parameter estimation, the filtering of time‐varying volatility, and volatility forecasting.
Francisco Blasques+2 more
wiley +1 more source
C ∞ Well-Posedness of Higher Order Hyperbolic Pseudo-Differential Equations with Multiplicities. [PDF]
Garetto C, Sabitbek B.
europepmc +1 more source
The evolution of measures determined by the Navier-Stokes equations and on the solvability of the Cauchy problem for the Hopf statistical equation [PDF]
A. M. Vershik, O. A. Ladyzhenskaya
openalex +1 more source