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yangkedc1984's Projects

access-r-source icon access-r-source

How to get at R source. I am sick of Googling this. I am writing it down this time.

advance-simulation-methods-project-for-stock-price-forecasting icon advance-simulation-methods-project-for-stock-price-forecasting

In general, the simulation is in a Geometric Brownian Motion framework, and with some modifications. I first visualize price and daily returns to find some trend and features of that stock, then I use the analytical insights to construct the model that can capture as much information as possible. Finally, I quantify the information, and put them into my simulation model.

an-alternative-approach-to-forecast-the-volatility-of-multiscale-and-high-dimensional-market-data icon an-alternative-approach-to-forecast-the-volatility-of-multiscale-and-high-dimensional-market-data

Traditional methods for volatility forecast of multiscale and high-dimensional data like foreign-exchange and stock market volatility have both advantages and disadvantages which have been identified. In my project, I apply the Support Vector Machine (SVM) as a complimentary volatility method which is capable dealing of such type of data. SVM-based models may extract extra information of time series data and handle the long memory effect very well. Our Support Vector Machine for Regression (SVR) model has better result than the common GARCH (1, 1) model. The predictions are closer to the historical data and the error is lower. In addition, I test different kernels to see the performance difference. For my data, rbf kernel has an overall better performance than linear and polynomial kernels. I conclude that SVM-based model may be applied more frequently in the emerging field of high-frequency finance and in multivariate models for portfolio risk management.

ar-dcc_residual_analysis icon ar-dcc_residual_analysis

autoregressive-dynamic conditional correlation model with residual analysis, Designed for fMRI analysis(Dynamic Functional Connectivity), useful for other applications too.

ashr icon ashr

An R package for adaptive shrinkage

bayescomb icon bayescomb

Data and code for paper "A Bayesian approach to combining multiple information sources"

bayesian-ms-var icon bayesian-ms-var

This repository contains a matlab code to estimate a Bayesian Markov-Switching Vector Auto Regression Model

bayesian_ovfit_mixedscale_compositionaldata_mixturemodels icon bayesian_ovfit_mixedscale_compositionaldata_mixturemodels

This repository contains functions for obtaining posterior samples of allocation variables in multiple Bayesian over-fitted (sparse finite) mixed-scale mixture models. Mixture models included: 1) Bayesian Tensor Mixture of Product Kernels model (BayesTMPK), 2) Modularized Tensor Factorizations (MOTEF), 3) Bayesian Mixture of Product Kernels (BayesMPK), 4) Bayesian Mixture of Multivariate Gaussians (BayesMixMultGauss). Functions 1 and 2 include ability to model compositional data with essential zeros. Functions 3 and 4 include ability to model non-zero compositional data.

bayesianms-var-gc icon bayesianms-var-gc

Bayesian Estimation of Markov-Switching VARs for Granger Causal Inference in R

bayesmar icon bayesmar

Bayesian Median Autoregressive model for time series forecasting

bear-toolbox icon bear-toolbox

The Bayesian Estimation, Analysis and Regression toolbox (BEAR) is a comprehensive (Bayesian Panel) VAR toolbox for forecasting and policy analysis.

bgvar icon bgvar

Toolbox for the estimation of Bayesian Global Vector Autoregressions in R.

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