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Risk-Based Portfolios with Large Dynamic Covariance Matrices
Risk-Based Portfolios with Large Dynamic Covariance Matricesopenaire
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What's Wrong with Risk Matrices?
Risk Analysis, 2008Risk matrices—tables mapping “frequency” and “severity” ratings to corresponding risk priority levels—are popular in applications as diverse as terrorism risk analysis, highway construction project management, office building risk analysis, climate change risk management, and enterprise risk management (ERM). National and international standards (e.g.,
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Minimal-Risk Scoring Matrices for Sequence Analysis
Journal of Computational Biology, 1999We introduce a minimal-risk method for estimating the frequencies of amino acids at conserved positions in a protein family. Our method, called minimal-risk estimation, finds the optimal weighting between a set of observed amino acid counts and a set of pseudofrequencies, which represent prior information about the frequencies.
T D, Wu +2 more
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Data-Driven Risk Matrices for CERN’s Accelerators
2021Proceedings of the 12th International Particle Accelerator Conference, IPAC2021, Campinas, SP ...
Cartier-Michaud, Thomas +4 more
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Surveillance of Occupational Risks Using Job-Exposure Matrices
Methods of Information in Medicine, 1991AbstractThis article deals with the problem of surveillance of occupational risks of workers. Computer-assisted elaboration of the job history (JH) for each worker was achieved by means of a job-exposure matrix (JEM) for each company. The final aim of the project is to find correlations between the exposure data of JHs and the health data of ...
J M, Martin +3 more
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Further Thoughts on the Utility of Risk Matrices
Risk Analysis, 2013Risk matrices are commonly encountered devices for rating hazards in numerous areas of risk management. Part of their popularity is predicated on their apparent simplicity and transparency. Recent research, however, has identified serious mathematical defects and inconsistencies.
David J, Ball, John, Watt
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Guidelines for designing risk matrices
Process Safety Progress, 2017Risk matrices are used widely in process safety to rate and rank risks posed by processes to help with decision making. For example, commonly they are used in process hazard analysis to rate the risks of hazard scenarios and determine the need for risk reduction. However, there are no standards for risk matrices in process safety.
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Stress testing correlation matrices for risk management
The North American Journal of Economics and Finance, 2013Abstract Evaluating portfolio risk typically requires that correlation estimates of security returns be made. Historical financial events have shown that correlations can rise quickly, causing a huge increase in portfolio risk. Therefore, in stress testing portfolios, it is important to consider the influence of a sudden surge in selected ...
So, Mike Ka Pui +2 more
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Aggregating risk matrices under a normative framework
Journal of Risk Research, 2019Risk matrices have been proven as useful risk management tools, especially in the cases where data are not sufficient.
Chunbing Bao +3 more
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Modelling tail credit risk using transition matrices
Mathematics and Computers in Simulation, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Allen, D. E. +3 more
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