In multiuser detection, the set of users active at any time may be unknown to the receiver. A two-step detection procedure, in which multiuser detection is preceded by active-user...
We develop a framework for the image segmentation problem based on a new graph-theoretic formulation of clustering. The approach is motivated by the analogies between the intuitiv...
Abstract. We introduce a compositional characterization of the operational semantics of equational Horn programs. Then we show that this semantics and the standard operational sema...
We relate several models of concurrency introduced in the literature in order to extend classical Mazurkiewicz traces. These are mainly Droste's concurrent automata and Arnold...
Abstract. A fundamental and unanalysed logical concept is substitution. This seemingly innocuous operation -- substituting a variable for a term or valuating a variable to an eleme...