نتایج جستجو برای: dynamic conditional correlation

تعداد نتایج: 837086  

Journal: :Bioinformatics 2005
John Jeremy Rice Yuhai Tu Gustavo Stolovitzky

MOTIVATION One of the present challenges in biological research is the organization of the data originating from high-throughput technologies. One way in which this information can be organized is in the form of networks of influences, physical or statistical, between cellular components. We propose an experimental method for probing biological networks, analyzing the resulting data and reconst...

Journal: :International journal of academic research in accounting, finance and management sciences 2021

Due to the significant increase in novel coronavirus disease (COVID-19) cases Malaysia, this study took initiative examine impact of COVID-19 on co-movement five selected cryptocurrencies and two financial assets, namely FTSE Bursa Malaysia Kuala Lumpur Composite Index (FBMKLCI) Ringgit over United States Dollar (MYRUSD). By using daily frequency data from May 2013 July 2021, Dynamic Conditiona...

1998
Y. K. Tse Albert K. C. Tsui

In this paper we propose a new multivariate GARCH model with timevarying correlations. We adopt the vech representation based on the conditional variances and the conditional correlations. While each conditional-variance term is assumed to follow a univariate GARCH formulation, the conditional-correlation matrix is postulated to follow an autoregressive moving average type of analogue. By impos...

1997
Maria-Dana Tarlescu Kevin B. Theobald Guang R. Gao

Two-level dynamic branch predictors try to predict the outcomes of conditional branches using both a table of state counters associated with specific branch instructions and a buffer of recent branch outcomes to correlate the counters with specific branch histories. However, there is always a question of how much correlation to use, and some programs benefit from higher levels of correlation th...

Journal: :European Journal of Operational Research 2022

In this article, we first generalize the Conditional Auto-Regressive Expected Shortfall (CARES) model by introducing loss exceedances of all (other) listed companies in related to each firm, thus proposing CARES-X (where ‘X’, as usual, stands for eXtended case large-dimensional problems). Second, construct a regularized network US financial Least Absolute Shrinkage and Selection Operator estima...

2008
Turan G. Bali Robert F. Engle

This paper examines the intertemporal relation between expected return and risk for 30 stocks in the Dow Jones Industrial Average. The mean-reverting dynamic conditional correlation model of Engle (2002) is used to estimate a stock’s conditional covariance with the market and test whether the conditional covariance predicts time-variation in the stock’s expected return. The risk-aversion coeffi...

Journal: :EURO Journal on Computational Optimization 2020

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