Sökning: "Yu Meng"

Hittade 3 uppsatser innehållade orden Yu Meng.

  1. 1. Deconvolution algorithms of 2D Transmission Electron Microscopy images

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Ting Meng; Yating Yu; [2012]
    Nyckelord :Deconvolution; Image restoration; Wiener lter; Wiener deconvolution;

    Sammanfattning : The purpose of this thesis is to develop a mathematical approach and associated software implementation for deconvolution of two-dimensional Transmission Electron Microscope (TEM) images. The focus is on TEM images of weakly scattering amorphous biological specimens that mainly produce phase contrast. LÄS MER

  3. 2. Bayesian Analysis of a Stochastic Volatility Model

    Master-uppsats, Matematiska institutionen

    Författare :Yu Meng; [2009]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. FORECASTING VOLATILITY:: EVIDENCE FROM SWEDISH STOCK MARKET

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Yu Meng; Natalia Rafikova; [2006]
    Nyckelord :Volatility; GARCH; Implied Volatility;

    Sammanfattning : This study evaluates the performance of alternative models for predicting stock price volatility on Swedish market. The model set contains various methods for producing volatility forecasts ranging from simple ones (Random Walk, Moving Average and Exponentially Moving Average) to non-linear group of models (GARCH (1,1) and EGARCH) and Implied volatility from OMX S30 option prices (IV). LÄS MER