Results 241 to 250 of about 206,384 (310)

A Fuzzy Framework for Realized Volatility Prediction: Empirical Evidence From Equity Markets

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT This study introduces a realized volatility fuzzy time series (RV‐FTS) model that applies a fuzzy c‐means clustering algorithm to estimate time‐varying c$$ c $$ latent volatility states and their corresponding membership degrees. These memberships are used to construct a fuzzified volatility estimate as a weighted average of cluster centroids.
Shafqat Iqbal, Štefan Lyócsa
wiley   +1 more source

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann   +2 more
wiley   +1 more source

Eliminating episodic memory? [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci
Andonovski N, Sutton J, McCarroll CJ.
europepmc   +1 more source

When the Tail Wags the Dog: A Time‐Varying FCVAR Analysis of Bitcoin Market

open access: yesJournal of Futures Markets, EarlyView.
ABSTRACT This paper examines how the relationship between Bitcoin spot and futures markets has evolved using a time‐varying Fractionally Cointegrated Vector Autoregressive (FCVAR) model. We are the first to apply this methodology dynamically to cryptocurrency markets, allowing us to simultaneously analyze long‐run equilibrium, pricing patterns, market ...
Filippo di Pietro   +2 more
wiley   +1 more source

Examining working and episodic memory in young adults with anhedonia. [PDF]

open access: yesCogn Affect Behav Neurosci
Uribe S, Bowen HJ, Meuret AE.
europepmc   +1 more source

Neuroanatomical and functional correlates in borderline personality disorder: A narrative review

open access: yesIbrain, Volume 11, Issue 1, Page 19-31, Spring 2025.
Borderline personality disorder (BPD) is considered a dysfunctional, stable, and pervasive alteration in personality functioning with the inability to adapt to the environment, mental rigidity, and ego‐syntonic, and like all personality disorders is a consistent pattern of inner experience and behavior that deviates markedly from the expectations of ...
Giulio Perrotta
wiley   +1 more source

The privileged role of thematic conceptual relations in episodic memory

open access: gold
Weijia Cao   +4 more
openalex   +1 more source

Organic field‐effect transistors: Materials design, device physics, and contact engineering for high‐performance flexible electronics

open access: yesInformation &Functional Materials, EarlyView.
This review bridges molecular design with device engineering to address key challenges in organic transistors. By integrating materials chemistry with contact optimization, it provides pathways toward stable, high‐performance flexible electronics. Abstract Organic field‐effect transistors are widely recognized as key enabling components for low‐cost ...
Fenglan Kuang   +10 more
wiley   +1 more source

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