Results 31 to 40 of about 88,663 (317)

Jump Variation Estimation with Noisy High Frequency Financial Data via Wavelets

open access: yesEconometrics, 2016
This paper develops a method to improve the estimation of jump variation using high frequency data with the existence of market microstructure noises. Accurate estimation of jump variation is in high demand, as it is an important component of volatility ...
Xin Zhang, Donggyu Kim, Yazhen Wang
doaj   +1 more source

Pricing European-Style Options in General Lévy Process with Stochastic Interest Rate

open access: yesMathematics, 2020
This paper extends the traditional jump-diffusion model to a comprehensive general Lévy process model with the stochastic interest rate for European-style options pricing.
Xiaoyu Tan, Shenghong Li, Shuyi Wang
doaj   +1 more source

Hydraulic Jump Behavior during Filling Process of Cast Start II

open access: yesMetals, 2022
This paper presents a 0.25-scale quasi-three-dimensional hydraulic model experiment of transient fluid flow phenomena during continuous casting of steel under solidification.
Jin Chen   +5 more
doaj   +1 more source

Detecting jumps from Lévy jump diffusion processes☆ [PDF]

open access: yesJournal of Financial Economics, 2008
Abstract Recent asset-pricing models incorporate jump risk through Levy processes in addition to diffusive risk. This paper studies how to detect stochastic arrivals of small and big Levy jumps with new nonparametric tests. The tests allow for robust analysis of their separate characteristics and facilitate better estimation of return dynamics ...
Suzanne S. Lee, Jan Hannig
openaire   +1 more source

Robust filtering for discrete-time Markovian jump delay systems [PDF]

open access: yes, 2004
Copyright [2004] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services.
Liu, X, Wang, Z, Lam, J
core   +1 more source

A Fractional Process with Jumps for Modeling Karstic Spring Discharge Data

open access: yesMathematics
Fractal dimensions for the daily discharge data series of several karstic springs in northeast Hungary have recently been computed and analyzed. We model four of those series with similar fractal dimensions using a superposition of a fractional Ornstein ...
Dániel Boros   +4 more
doaj   +1 more source

Detecting non-neutral modules in species co-occurrence data: principles and application to plant communities

open access: yesRoyal Society Open Science
Inferring assembly processes from species co-occurrence data is a long-standing challenge in community ecology. Approaches that focus on detecting non-random spatial covariance between species occurrences are limited by the fact that spatial patterns can
Fabien Laroche, Bodil Ehlers
doaj   +1 more source

Subordinate Shares Pricing under Fractional-Jump Heston Model [PDF]

open access: yesتحقیقات مالی, 2019
Objective: In this paper, while introducing Heston's model of stochastic variance, regarding the jump process and the long-term memory feature of prices, a new model for pricing subordinate shares is presented.
Omid Jenabi, Nazar Dahmardeh Ghaleno
doaj   +1 more source

Homogenization of non-symmetric jump processes

open access: yesAdvances in Applied Probability, 2023
AbstractWe study homogenization for a class of non-symmetric pure jump Feller processes. The jump intensity involves periodic and aperiodic constituents, as well as oscillating and non-oscillating constituents. This means that the noise can come both from the underlying periodic medium and from external environments, and is allowed to have different ...
Huang, Qiao   +2 more
openaire   +2 more sources

Effect of different jump distributions on the dynamics of jump processes [PDF]

open access: yesPhysical Review E, 2010
The paper investigates stochastic processes forced by independent and identically distributed jumps occurring according to a Poisson process. The impact of different distributions of the jump amplitudes are analyzed for processes with linear drift. Exact expressions of the probability density functions are derived when jump amplitudes are distributed ...
Daly, Edoardo, Porporato, Amilcare
openaire   +2 more sources

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