The aim of a time-space relief cartography is to produce a coherent representation of distances along a network composed of transport modes, and characterised by different speeds. As example of the “simple distances shown on a complex map” domain, the readability of this type of representation can be strongly enhanced by the use of animation techniques. A fly-by of the three-dimensional structu...

— This paper présents a simplified construction of an algorithm space. The intuitive notion ofan algorithm collection goes back to Nolin 1974. Our goal is her e to formalize and simplify this présentation of algorithm theory. The introduction of a computability notion was induced by the utilization of bundie theory. We build an enumerable algorithm space where ever y object is computable. Résum...

We consider the estimation of the Directions-Of-Arrival (DOA) of target signals in diffuse noise. The state-of-the-art MUltiple SIgnal Classification (MUSIC) algorithm necessitates accurate identification of the signal subspace. In diffuse noise, however, it is difficult to identify it directly from the observed spatial covariance matrix. In our approach, we estimate the target spatial covarian...