In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
Spacecraft are key components of military operations and everyday life. To achieve space situation awareness, human operators must monitor large numbers of parameters. During off-...
Several studies have focused on the efficient processing of simple spatial query types such as selections and spatial joins. Little work, however, has been done towards the optimiz...
— In each country today, cellular networks operate on carefully separated frequency bands. This careful separation is imposed by the regulators of the given country to avoid the ...
Abstract. The paper starts from the standard relational view linking objects and properties in formal concept analysis, here augmented with four modal-style operators (known as suf...
Didier Dubois, Florence Dupin de Saint-Cyr, Henri ...