by Wesley W. Chu, Xiaohong Yang, Wenlei Mao
Abstract:
Active
database systems have received increasing interest from both research
and industrial communities. However, trigger conditions in the active
rules are often difficult to specify, especially as the events and/or
conditions complexities increase. To remedy this problem, we propose an
active database system that supports rules with conceptual terms,
approximate operators, and complex events. The conceptual terms and
approximate operators are user and context sensitive. By introducing
these high level constucts, we not only simplify the rule specification
process, but also increase the rule expressiveness….- goto
originally Posted to cep.weblogger.com by David Soul on 2/19/04; 11:48:34 PM
in the CEP section.
Related posts on Bricoleur Systems -auto generated:
- Active Database Manifesto In contrast to traditional database systems active database systems management are designed to automatically react to events. Typically they use either...
- Design of an event system which supports scopes and event mappings Moving Active Functionality from Centralized to Open Distributed Heterogeneous Environments (M. Cilia; C. Bornhovd; A. Buchmann; Databases and Distributed Systems...
- Kinesthetics eXtreme: An External Infrastructure for Monitoring Distributed Legacy Systems In this powerpoint presentation Gail Kaiser, Janak Parekh, Phillp Gross and Giussepper Valetto of the Programming Systems Lab of Columbia...
- The Architecture of the READY Event Notification Service (1999) The Architecture of the READY Event Notification Service (1999) by Robert E. Gruber, Balachander Krishnamurthy, Euthimios Panagos Abstract: We describe...
- An Annotated Bibliography on Active Databases This is a bibliography (1995) on active databases and active database systems which reflects the various research activities in this...
Tags: CEP, Complex Event Processing
NASA image of the day
Launching Balloons to Study Space WeatherIn Antarctica in January, 2013 – the summer at the South Pole – scientists released 20 balloons, each eight stories tall, into the air to help answer an enduring space weather question: when the giant radiation belts surrounding Earth lose material, where do the extra particles actually go? This NASA-funded mission is called BARREL, for Balloon Array for Radiation belt Relativistic Electron Losses. Each balloon launched by the BARREL team floated for anywhere from three to 40 days, measuring X-rays produced by fast-moving electrons high up in the atmosphere.BARREL works hand in hand with another NASA mission called the Van Allen Probes, which travels directly through the Van Allen radiation belts. The belts wax and wane over time in response to incoming energy and material from the sun, sometimes intensifying the radiation through which satellites orbiting Earth must travel. Scientists need to understand this process better, and even provide forecasts of such space weather, in order to protect our spacecraft.› Read MoreImage Credit: NASA
Read More