We study a queueing network where customers go through several stages of processing, with the class of a customer used to indicate the stage of processing. The customers are servic...
Moving object databases store and process data for objects that change location frequently. Materialized views maintained over time must be updated to reflect changes due to the m...
Abstract. Future database application systems will be designed as Service Oriented Architectures (SOAs), in contrast to today’s monolithic architectures. The decomposition in man...
Daniel Gmach, Stefan Krompass, Stefan Seltzsam, Ma...
We investigate an optimal scheduling problem in a discrete-time system of L parallel queues that are served by K identical servers. This model has been widely used in studies of em...
Hussein Al-Zubaidy, Ioannis Lambadaris, Ioannis Vi...
A multi-clip query requests multiple video clips. In this paper we address the multi-clip query optimization problem. We propose a new heuristics called Restricted Search Interval...
Ahmed Mostefaoui, Lionel Brunie, Harald Kosch, L&a...