In this paper, we consider the problem of detecting edges in a Gaussian graphical model. The problem is equivalent to the identification of non-zero entries of the concentration matrix of a normally distributed random vector. Following the methodology initiated in Meinshausen and Bühlmann...

Genetic brain maps can help physicians to discover patterns of brain structure and how it changes in disease or reacts to medication. In order to generate a brain map, an image model is needed. A much discussed subject, nowadays, is the subject of improving images obtained from devices like MRI,...

Motivated by applications in statistical quality control and signal analysis, we propose a sequential detection procedure which is designed to detect structural changes, in particular jumps, immediately. This is achieved by modifying a median filter by appropriate kernel-based jump preserving...