Results 91 to 100 of about 583,999 (299)

A Study Of Stock Volatility In The Context Of Factor Volatility Models For Large Datasets: Factor Analysis And Forecasting [PDF]

open access: yes, 2007
PhDThis thesis is a study of stock volatility adopting two factor volatility models for large datasets: the orthogonal GARCH model and the stochastic volatility factor model.
Lui, Sze Wai Silvia
core   +2 more sources

Volatility forecasts: a continuous time model versus discrete time models [PDF]

open access: yes, 2006
This paper compares empirically the forecasting performance of a continuous time stochastic volatility model with two volatility factors (SV2F) to a set of alternative models (GARCH, FIGARCH, HYGARCH, FIEGARCH and Component GARCH).
Veiga, Helena
core   +1 more source

The Impact of Jumps and Leverage in Forecasting the Co-Volatility of Oil and Gold Futures

open access: yesEnergies, 2019
This paper investigates the impact of jumps in forecasting co-volatility in the presence of leverage effects for daily crude oil and gold futures. We use a modified version of the jump-robust covariance estimator of Koike (2016), such that the estimated ...
Manabu Asai   +2 more
doaj   +1 more source

“Smelltronics”—From Gas to Smell Sensing

open access: yesAdvanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono   +7 more
wiley   +1 more source

Estimating and Forecasting Asset Volatility and Its Volatility: A Markov-Switching Range Model [PDF]

open access: yes
This paper proposes a new model for modeling and forecasting the volatility of asset markets. We suggest to use the log range defined as the natural logarithm of the difference of the maximum and the minimum price observed for an asset within a certain ...
Jan Piplack
core  

Hybrid fuzzy inference rules of descent method and wavelet function for volatility forecasting. [PDF]

open access: yesPLoS One, 2022
Alenezy AH   +4 more
europepmc   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

open access: yesAdvanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Volatility Forecasting for Muscat Security Market Index using Markov Switching GARCH Model and Back-propagation Neural Network

open access: yesSultan Qaboos University Journal for Science
This study examines key characteristics of stock market time series, such as regime shifts and non-linearity, which necessitate specialized methods for capturing market volatility. To improve volatility forecasting for the Muscat Securities Market Index (
Brahim Benaid   +2 more
doaj   +1 more source

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