Results 71 to 80 of about 507,052 (301)
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Data-driven adaptive hybrid models for exchange rate return forecasting
Frontiers in Big DataBackgroundExchange-rate return forecasting is challenging because financial time series may exhibit linearity, nonlinearity, regime-switching behavior, and volatility.
Olumide Sunday Adesina +1 more
doaj +1 more source
Out-of-sample Forecasting Performance of Won/Dollar Exchange Rate Return Volatility Model
East Asian Economic Review, 2009 We compare the out-of-sample forecasting performance of volatility models using daily exchange rate for the KRW/USD during the period from 1992 to 2008.
Hojin Lee
doaj +1 more source
Forecasting Latin-American Currency Exchange using Models with Static and Stochastic Volatility
Ingeniería, 2018 Context: The currency market is known as the most liquid market in the financial system. Its strong repercussion in the economy is tied to the capitalization and the impulse that this market offers through the increase of investments and therefore of ...
Laura Camila Roldán Martínez
doaj +1 more source
The Volatility Forecasting Power of Financial Network Analysis
Complexity, 2020 This investigation connects two crucial economic and financial fields, financial networks, and forecasting. From the financial network’s perspective, it is possible to enhance forecasting tools, since econometrics does not incorporate into standard ...
Nicolás S. Magner +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
Inflation Volatility and Forecast Accuracy [PDF]
This paper examines the statistical properties of inflation in a sample of inflation-targeting and non-inflation-targeting countries. First, it analyses the time-varying volatility of a measure of the persistent component of inflation.
Jarkko Jääskelä, Jamie Hall
core
Using CAViaR models with implied volatility for value-at-risk estimation [PDF]
, 2013 This paper proposes VaR estimation methods that are a synthesis of conditional autoregressive value at risk (CAViaR) time series models and implied volatility.
Jeon, Jooyoung, Taylor, James
core +1 more source
Diance yu yibiaoThe output power of photovoltaic (PV) power sources is significantly affected by factors such as weather and light intensity, exhibiting notable intermittency and volatility.
Wen Zhuoheng, Tang Zhong
doaj +1 more source
Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley +1 more source