Results 111 to 120 of about 655 (188)

Standardized Images and Evaluation Metrics for Tomography. [PDF]

open access: yesTomography
Frixou A   +3 more
europepmc   +1 more source

The influence of negative interest rates on European life insurance companies

open access: yesJournal of Risk and Insurance, EarlyView.
Abstract Between 2016 and 2022, life insurers in several European countries experienced negative long‐term interest rates, which put pressure on their business models. The aim of this paper is to empirically investigate the impact of negative interest rates on the stock performance of life insurers.
Nicolaus Grochola
wiley   +1 more source

A Note on Local Polynomial Regression for Time Series in Banach Spaces

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT This work extends local polynomial regression to Banach space‐valued time series for estimating smoothly varying means and their derivatives in non‐stationary data. The asymptotic properties of both the standard and bias‐reduced Jackknife estimators are analyzed under mild moment conditions, establishing their convergence rates.
Florian Heinrichs
wiley   +1 more source

BMWP: the first Bengali math word problems dataset for operation prediction and solving. [PDF]

open access: yesDiscov Artif Intell
Mondal S   +4 more
europepmc   +1 more source

Robust Estimation and Inference for Time‐Varying Unconditional Volatility

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We derive a general and robust estimator of a large class of parametric specifications of time‐varying unconditional volatility of financial returns, both univariate and multivariate, and establish the Consistency and Asymptotic Normality (CAN) of the estimator.
Adam Lee   +2 more
wiley   +1 more source

Diagrammatic physical robot models. [PDF]

open access: yesSoftw Syst Model
Miyazawa A   +7 more
europepmc   +1 more source

Effective When Distinctive: The Role of Phonetic Similarity in Nested Dependency Learning Across Preschool Years

open access: yesLanguage Learning, EarlyView.
Abstract Parallel tracking of distant relations between speech elements, so‐called nonadjacent dependencies (NADs), is crucial in language development but computationally demanding and acquired only in late preschool years. As processing of single NADs is facilitated when dependent elements are perceptually similar, we investigated how phonetic ...
Dimitra‐Maria Kandia   +3 more
wiley   +1 more source

Measure‐valued processes for energy markets

open access: yesMathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero   +3 more
wiley   +1 more source

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