This paper proposes a method for local deformation analysis of the heart's left ventricle (LV) which is of an utmost interest in characterizing the myocardium disease extent and severity. Our method is based on regional curvature variation calculation using the Hotelling T2 two samples difference metric. Our approach is validated on real data obtained from myocardial scintigraphy imaging techni...

We analyse a newspaper market where media …rms compete for advertising as well as for readership. Firms …rst choose the political position of their newspaper, then set cover prices and advertising tari¤s. We build on the duopoly work in two-sided markets of Gabszewicz, Laussel, and Sonnac (2001, 2002) who show that advertising …nancing can lead to minimum political di¤erentiation. We extend the...

We study two types of targeting in this paper, exogenous targeting and endogenous targeting. By exogenous targeting we mean targeting by product preferences: advertising levels and prices geared to specific consumer preferences. Exogenous targeting presumes observability of consumer preferences (or of factors correlated with them). This is the sort of targeting that is much in the news in conte...

For high-dimensional small sample size data, Hotelling's T2 test is not applicable for testing mean vectors due to the singularity problem in covariance matrix. To overcome problem, there are three main approaches literature. Note, however, that each of existing may have serious limitations and only works well certain situations. Inspired by this, we propose a pairwise Hotelling method vectors,...