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CSDA
2010
60views more  CSDA 2010»
13 years 5 months ago
Efficient estimation of a semiparametric dynamic copula model
Christian M. Hafner, Olga Reznikova
IOR
2008
103views more  IOR 2008»
13 years 4 months ago
Portfolio Credit Risk with Extremal Dependence: Asymptotic Analysis and Efficient Simulation
We consider the risk of a portfolio comprised of loans, bonds, and financial instruments that are subject to possible default. In particular, we are interested in performance meas...
Achal Bassamboo, Sandeep Juneja, Assaf J. Zeevi
NIPS
2008
13 years 6 months ago
Characterizing neural dependencies with copula models
The coding of information by neural populations depends critically on the statistical dependencies between neuronal responses. However, there is no simple model that can simultane...
Pietro Berkes, Frank Wood, Jonathan Pillow
EOR
2010
125views more  EOR 2010»
13 years 5 months ago
Efficient estimation of large portfolio loss probabilities in t-copula models
We consider the problem of accurately measuring the credit risk of a portfolio consisting of loans, bonds and other financial assets. One particular performance measure of interes...
Joshua C. C. Chan, Dirk P. Kroese
IOR
2010
71views more  IOR 2010»
13 years 2 months ago
Stochastic Root Finding and Efficient Estimation of Convex Risk Measures
Reliable risk measurement is a key problem for financial institutions and regulatory authorities. The current industry standard Value-at-Risk has several deficiencies. Improved ri...
Jörn Dunkel, Stefan Weber