Title
Gaussian Process Conditional Copulas with Applications to Financial Time Series.
Abstract
The estimation of dependencies between multiple variables is a central problem in the analysis of financial time series. A common approach is to express these dependencies in terms of a copula function. Typically the copula function is assumed to be constant but this may be inaccurate when there are covariates that could have a large influence on the dependence structure of the data. To account for this, a Bayesian framework for the estimation of conditional copulas is proposed. In this framework the parameters of a copula are non-linearly related to some arbitrary conditioning variables. We evaluate the ability of our method to predict time-varying dependencies on several equities and currencies and observe consistent performance gains compared to static copula models and other time-varying copula methods.
Year
Venue
Field
2013
NIPS
Econometrics,Covariate,Mathematical optimization,Copula (linguistics),Computer science,Copula (probability theory),Gaussian process,Finance,Bayesian probability
DocType
Citations 
PageRank 
Conference
1
0.36
References 
Authors
10
4