Source separation based on second order statistics: An algebraic approach

this paper is a blockmethod based on second-order statistics of the measurement data only. The parameters of the inverse filter are to be found such that the resulting filtered output signals y 1 (t) and y 2 (t) have zero cross-covariance function. Assuming a certain filter structure, the resulting conditions take the form of bilinear equations. The usual approach at this point is to set up a cos

Pre-Hire Factors and Workplace Ethnic Segregation (discussion paper)

In addition to neighbourhoods of residence, family and places of work play important roles in producing and reproducing ethnic segregation. Therefore, recent research on ethnic segregation and contact is increasingly turning its attention from residential areas towards other important domains of daily interethnic contact. The key innovation of this paper is to clarify the role of immigrants’ pre-hire exposure to natives in the residence, workplace and family domains in immigrant exposure to natives in their current workplace. The study is based on Swedish population register data. The results show that at the macro level, workplace neighbourhood segregation is lower than residential neighbourhood segregation. Our micro-level analysis further shows that high levels of residential exposure of immigrants to natives help to reduce ethnic segregation at the level of workplace establishments as well.OTB Research Institute for the Built Environmen