Results 101 to 110 of about 8,249,197 (148)

Stochastic optimization of heuristic method rule to determine asset allocation to retirement portfolio

open access: yesBusiness: Theory and Practice, 2011
The article examines the problem of determining asset allocation to sustainable retirement portfolio. The article attempts to apply heuristic method – 100 minus age in stocks rule – to determine asset allocation to sustainable retirement portfolio. Using
Aušra Klimavičienė
doaj  

Finite dimensional Markovian realizations for stochastic volatility forward rate models [PDF]

open access: yes
We consider forward rate rate models of HJM type, as well as more general infinite dimensional SDEs, where the volatility/diffusion term is stochastic in the sense of being driven by a separate hidden Markov process.
Björk, Tomas   +2 more
core  

Forecasting Mortality Rate Using a Neural Network with Fuzzy Inference System [PDF]

open access: yes
Various methods have been developed to improve mortality forecasts. The authors proposed a neuro-fuzzy model to forecast the mortality. The forecasting of mortality is curried out by an ANFIS model which uses a first order Sugeno-type FIS.
Camelia Ioana Ucenic   +4 more
core  

Asymptotic analysis of stochastic models of hierarchic structure and applications in queueing models

open access: yes, 1998
A class of switching stochastic systems with hierarchic state space working in different scales of time ( slow and fast) that are adequate mathematical models at the analysis and modelling of various classes of computing systems and networks of a ...
Anisimov, Vladimir V.
core  

Multivariate Stochastic Volatility Models: Bayesian Estimation and Model Comparison [PDF]

open access: yes
In this paper we show that fully likelihood-based estimation and comparison of multivariate stochastic volatility (SV) models can be easily performed via a freely available Bayesian software called WinBUGS.
Jun Yu, Renate Meyer
core  

Development and evaluation of a machine learning prediction model for short-term mortality in patients with diabetes or hyperglycemia at emergency department admission

open access: yesCardiovascular Diabetology
Background Patients with diabetes admitted to emergency care face a higher risk of complications, including prolonged hospital stays, admissions to the intensive care unit and mortality.
Per Wändell   +10 more
doaj   +1 more source

Stochastic volatility [PDF]

open access: yes
Given the importance of return volatility on a number of practical financial management decisions, the efforts to provide good real- time estimates and forecasts of current and future volatility have been extensive.
Torben G. Andersen, Luca Benzoni
core  

Characteristic function estimation of Ornstein-Uhlenbeck-based stochastic volatility models. [PDF]

open access: yes
Continuous-time stochastic volatility models are becoming increasingly popular in finance because of their flexibility in accommodating most stylized facts of financial time series.
Emanuele Taufer   +2 more
core  

Using dynamic stochastic simulation to determine asset allocation of sustainable retirement portfelio for a stochastic lifetime

open access: yesBusiness: Theory and Practice, 2010
The article examines the problem of determining asset allocation of sustainable retirement portfolio. Former researches used to analyse the fixed retirement planning horizon.
Aušra Klimavičienė
doaj  

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