Results 1 to 10 of about 1,352,480 (299)

Bivariate Copula Trees for Gross Loss Aggregation with Positively Dependent Risks

open access: yesRisks, 2022
We propose several numerical algorithms to compute the distribution of gross loss in a positively dependent catastrophe insurance portfolio. Hierarchical risk aggregation is performed using bivariate copula trees.
Rafał Wójcik, Charlie Wusuo Liu
doaj   +1 more source

Features of applying modified model of logistic dynamics for an industrial enterprise implementing investment projects

open access: yesНаучно-технические ведомости СПбГПУ: Экономические науки, 2021
The dynamic changes in the economic environment of the 2010s - early 2020s create a demand for revising the previously adopted priorities for managing industrial enterprises, identifying new opportunities for their functioning and development.
Danilov Aleksandr
doaj   +1 more source

Financial Models [PDF]

open access: yes, 2021
<p>The thesis will have two main parts. First, let us start with an example. In finance, the standard version of the Black-Scholes formula is a beautiful closed form solution used to price European options. This famous formula is ingenious, but has a flaw that relegates it to something that should be admired, and perhaps not be used in the real ...
openaire   +2 more sources

Comparing Different Models of Evolutionary Three-Objective Optimization Using Fuzzy Logic in Tehran Stock Exchange [PDF]

open access: yesIranian Journal of Finance, 1999
Optimal Portfolio Selection is one of the most important issues in the field of financial research. In the present study, we try to compare four various different models, which optimize three-objective portfolios using “Postmodern Portfolio Optimization ...
Mohammad Javad Salimi   +2 more
doaj   +1 more source

Direct and Hierarchical Models for Aggregating Spatially Dependent Catastrophe Risks

open access: yesRisks, 2019
We present several fast algorithms for computing the distribution of a sum of spatially dependent, discrete random variables to aggregate catastrophe risk. The algorithms are based on direct and hierarchical copula trees.
Rafał Wójcik   +2 more
doaj   +1 more source

Ownership concentration and risk disclosure quality in the Tunisian context: Evidence from the pre- and during COVID19 periods [PDF]

open access: yesContabilitate şi Informatică de Gestiune
Research question: How does ownership concentration impact risk disclosure quality in Tunisian listed companies before and during the Covid19 pandemic, and how does board gender diversity moderate this relationship?
Ikhlass Amous, Ahmed Chabchoub
doaj   +1 more source

Side-Channel Attacks on Post-Quantum Signature Schemes based on Multivariate Quadratic Equations

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2018
In this paper, we investigate the security of Rainbow and Unbalanced Oil-and-Vinegar (UOV) signature schemes based on multivariate quadratic equations, which is one of the most promising alternatives for post-quantum signature schemes, against side ...
Aesun Park   +3 more
doaj   +1 more source

Random Walk Modeling for Retrieving Information on Semantic Networking [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
In this article, the famous random walk model is exploited as a model of stochastic processes to retrieve some specific words which are used in social media by users.
Meghdad Abarghouei Nejad   +3 more
doaj   +1 more source

Nonlinear Fluctuations in the Cryptocurrency Market: The Modern Approaches to Analysis and Forecasting [PDF]

open access: yesProblemi Ekonomiki
This article presents a comprehensive study of modern methods for analyzing and forecasting cryptocurrency market dynamics. The author examines the evolution of the cryptocurrency market from a niche technological innovation to a significant segment of ...
Kochorba Valeriia Yu.
doaj   +1 more source

CO2-based heavy oil recovery processes for post-CHOPS reservoirs [PDF]

open access: yes, 2017
Authors would like to thank the financial support of the Petroleum Technology Research Centre Saskatchewan (PTRC) for this project, and Computer Modeling Group Ltd. for the use of their thermal reservoir simulation software CMG STARSTM.
Gates, Ian, Sharifi Haddad, Amin
core   +1 more source

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