Results 11 to 20 of about 682,905 (289)

Quadratic Function Chaotic System and its Application on Digital Image Encryption

open access: yesIEEE Access, 2020
To obtain chaotic systems with good properties to help chaos based image encryption, this paper first study the condition under which quadratic functions can be used as pseudo-random sequence generator.
Hongfeng Guo   +4 more
doaj   +1 more source

Conflicts with Momentum

open access: yesGames, 2022
Take the fort, then take the city. In a two-stage, two-party contest, victory in the initial stage can provide an advantage in the final stage. We examine such momentum in conflict scenarios and investigate how valuable it must be to avoid a Pyrrhic ...
James W. Boudreau   +3 more
doaj   +1 more source

Does the inclusion of exposure to volatility into diversified portfolio improve the investment results? Portfolio construction from the perspective of a Polish investor

open access: yesEconomics and Business Review, 2020
The main goal of this research is to analyse the investment benefits from an incorporation of the volatility exposure to the diversified portfolio from the perspective of a Polish investor.
Latoszek Michał, Ślepaczuk Robert
doaj   +1 more source

Gradient boosting for quantitative finance

open access: yesThe Journal of Computational Finance, 2021
In this paper, we discuss how tree-based machine learning techniques can be used in the context of derivatives pricing. Gradient boosted regression trees are employed to learn the pricing map for a couple of classical, time-consuming problems in quantitative finance.
Davis, Jesse   +3 more
openaire   +1 more source

Asynchronous Deep Double Dueling Q-learning for trading-signal execution in limit order book markets

open access: yesFrontiers in Artificial Intelligence, 2023
We employ deep reinforcement learning (RL) to train an agent to successfully translate a high-frequency trading signal into a trading strategy that places individual limit orders.
Peer Nagy   +4 more
doaj   +1 more source

Discrete q-Exponential Limit Order Cancellation Time Distribution

open access: yesFractal and Fractional, 2023
Modeling financial markets based on empirical data poses challenges in selecting the most appropriate models. Despite the abundance of empirical data available, researchers often face difficulties in identifying the best fitting model.
Vygintas Gontis
doaj   +1 more source

CAPM with various utility functions: Theoretical developments and application to international data

open access: yesCogent Economics & Finance, 2017
This paper presents an extension of the Capital Assets Pricing Model (hereafter CAPM) where various utility functions are applied. Specifically, we propose an overall CAPM beta that accounts for the higher order moments and reflects the investor ...
Rihab Bedoui, Houda BenMabrouk
doaj   +1 more source

Impulsive Fractional Semilinear Integrodifferential Equations with Nonlocal Conditions

open access: yesJournal of Function Spaces, 2021
This paper is devoted to a class of impulsive fractional semilinear integrodifferential equations with nonlocal initial conditions. Based on the semigroup theory and some fixed point theorems, the existence theory of PC-mild solutions is established ...
Xue Wang, Bo Zhu
doaj   +1 more source

Signal and Noise in Correlation Matrix [PDF]

open access: yes, 2004
Using random matrix technique we determine an exact relation between the eigenvalue spectrum of the covariance matrix and of its estimator. This relation can be used in practice to compute eigenvalue invariants of the covariance (correlation) matrix ...
A. Görlich   +8 more
core   +1 more source

Valuation of step-down knock-in in one stock linked security using numerical and Monte Carlo integration [PDF]

open access: yesSeonmul yeongu, 2023
– This paper shows a new methodology for evaluating the value and sensitivity of autocall knock-in type equity-linked securities. While the existing evaluation methods, Monte Carlo simulation and finite difference method, have limitations in ...
GyeHong Kim
doaj   +1 more source

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