Results 131 to 140 of about 1,246,337 (384)

An Asymptotic Expansion with Push-Down of Malliavin Weights [PDF]

open access: yes
This paper derives asymptotic expansion formulas for option prices and implied volatilities as well as the density of the underlying asset price in multi-dimensional stochastic volatility models.
Akihiko Takahashi, Toshihiro Yamada
core   +3 more sources

A New Class of Stochastic Volatility Models with Jumps: Theory and Estimation [PDF]

open access: green, 1999
Mikhail Chernov   +3 more
openalex   +1 more source

Bifunctional Memristive Behavior of a Dual‐Layer Structure Depending on the Configuration of Charge Transport

open access: yesAdvanced Electronic Materials, EarlyView.
This paper presents a dual‐layer device integrating neuronal and synaptic functions using a conductive bottom layer (MXenes or rGO) and a gallium oxide top layer. The device demonstrates distinct switching behaviors—volatile (neuronal) and gradual (synaptic)—depending on the configuration.
Suji Ha   +6 more
wiley   +1 more source

Measuring time-varying economic fears with consumption-based stochastic discount factors [PDF]

open access: yes
This paper analyzes empirically the volatility of consumption-based stochastic discount factors as a measure of implicit economic fears by studying its relationship with future economic and stock market cycles. Time-varying economic fears seem to be well
Belén Nieto, Gonzalo Rubio
core  

All Organic Fully Integrated Neuromorphic Crossbar Array

open access: yesAdvanced Electronic Materials, EarlyView.
In this work, the first fully integrated crossbar array of electrochemical random‐access memory (ECRAM) that is composed entirely of organic materials is represented. This array can perform inference and in situ parallel training and is capable of classifying linearly separable 2D and 3D classification tasks with high accuracy.
Setareh Kazemzadeh   +2 more
wiley   +1 more source

Markov Regime Switching of Stochastic Volatility Lévy Model on Approximation Mode

open access: yesJournal of Applied Mathematics, 2013
This paper deals with financial modeling to describe the behavior of asset returns, through consideration of economic cycles together with the stylized empirical features of asset returns such as fat tails.
Arthit Intarasit
doaj   +1 more source

Spintronic Memtransistor Leaky Integrate and Fire Neuron for Spiking Neural Networks

open access: yesAdvanced Electronic Materials, EarlyView.
Spintronic memtransistor neurons based on domain walls enable energy‐efficient, field‐gated, and current‐controlled LIF functionality for neuromorphic computing, as demonstrated. When integrated into spiking neural network architectures, these devices achieve >96% pattern recognition accuracy, demonstrating high performance, scalability, and mem ...
Aijaz H. Lone   +7 more
wiley   +1 more source

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