Showing 1 - 10 of 42
system of linear equations as an optimization problem, in which the SVD-transformed density minimizes the error between the …
Persistent link: https://www.econbiz.de/10014332042
Earthquake damage depends on the ground acceleration generated by ut, with this ground acceleration being directly proportional to the changes in rupture speed as a fault propagates. This is the primary motivation for seismologists to study earthquake fracture dynamics. The theoretical...
Persistent link: https://www.econbiz.de/10009441408
In this paper, we suggest an approach to recovering behavior-related, preference-choice network information from observational data. We model the process as a self-organized behavior based random exponential network-graph system. To address the unknown nature of the sampling model in recovering...
Persistent link: https://www.econbiz.de/10011755342
This paper addresses the problem of estimation of a nonparametric regression function from selectively observed data when selection is endogenous. Our approach relies on independence between covariates and selection conditionally on potential outcomes. Endogeneity of regressors is also allowed...
Persistent link: https://www.econbiz.de/10011531872
In this paper we propose a novel method to construct confidence intervals in a class of linear inverse problems. First, point estimators are obtained via a spectral cut-off method depending on a regularisation parameter », that determines the bias of the estimator. Next, the proposed confidence...
Persistent link: https://www.econbiz.de/10011594329
It is widely admitted that the inverse problem of estimating the distribution of a latent variable X* from an observed sample of X, a contaminated measurement of X*, is ill-posed. This paper shows that measurement error models for self-reporting data are well-posed, assuming the probability of...
Persistent link: https://www.econbiz.de/10010277534
It is widely admitted that the inverse problem of estimating the distribution of a latent variable X* from an observed sample of X, a contaminated measurement of X*, is ill-posed. This paper shows that measurement error models for self-reporting data are well-posed, assuming the probability of...
Persistent link: https://www.econbiz.de/10010288413
Persistent link: https://www.econbiz.de/10005390602
expression of the local volatility. This equation is solved with Tikhonov regularization, using some discrete gradient …
Persistent link: https://www.econbiz.de/10004971749
In this paper, we address the problem of recovering the local volatility surface from option prices consistent with observed market data. We revisit the implied volatility problem and derive an explicit formula for the implied volatility together with bounds for the call price and its derivative...
Persistent link: https://www.econbiz.de/10004971752