EM or DA or EM and DA

Author: Chief Assist. Deyan Lazarov (Burgas Free University)

Keywords: EM Algorithm, Data Augmentation (DA), Missing values, K-means clusters, Labour Force Survey

The research extends the previous work of the author and presents the missing values (MV) problem in Labour Force Survey conducted in Bulgaria 2007 by National Statistical Institute. The mechanism of MV is MNAR and after K-means clustering procedure the database is split in to two general clusters Cluster 7 and the rest data. Missing data analysis is performed to two general clusters separately by using EM Algorithm, Data Augmentation Algorithm (DA) and the form of the DA with starting conditions based on EM initial parameters. The three methods are compared and specific conclusions are present.

Bulgarian Download Bulgariаn

More articles

Statute of gold and hypothesis On the prices of precious metals - Part III

The article, which is presented as a comment, discussions and analysis is the third part of a more detailed research…

Impact of global crisis on the aggregate activity of the Bulgarian economy

This article focuses on the changes in the aggregate economic activity measured by Gross Domestic Product in the Bulgarian…

Fuzzy evaluation of investment portfolios

Portfolio management is a well-researched interdisciplinary field. At the same time, there are many new possibilities…