A large number of distributed applications requires continuous and timely processing of
information as it flows from the periphery to the center of the system. Examples include …

Traditionally, real-time systems manage their data (eg chamber temperature, aircraft
locations) in application dependent structures. As real-time systems evolve, their …

In this paper, we present the design, implementation, and evaluation of a system that
executes complex event queries over real-time streams of RFID readings encoded as …

Managing transactions with real-time requirements presents many new problems. In this
paper we address several: How can we schedule transactions with deadlines? How do the …

In today's world, services and data are integrated in ever new constellations, requiring the
easy, flexible and scalable integration of autonomous, heterogeneous components into …

Data in real-time databases has to be logically consistent as well as temporally consistent.
The latter arises from the need to preserve the temporal validity of data items that reflect the …

The need for timely processing large amounts of information, flowing from the peripheral to
the center of a system, is common to different application domains, and it has justified the …

Composite (or Complex) event processing (CEP) systems search sequences of incoming
events for occurrences of user-specified event patterns. Recently, they have gained more …

In this paper we investigate the definition, detection, and management of events in the active
object-oriented database system SAMOS. First, we present various event specification …

Active database systems require facilities to specify triggers that fire when specified events
occur. We propose a language for specifying composite events as eveti expressions, formed …