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Content-based publish/subscribe systems have been employed to deal with complex distributed information flows in many applications. It is well recognized that event matching is a fundamental component of such large-scale systems. Event matching searches a space which is composed of all subscriptions. As the scale and complexity of a system grows, the efficiency of event matching becomes more critical...
Event matching is the process of checking high volumes of events against large numbers of subscriptions and is a fundamental issue for the overall performance of a large-scale distributed publish/subscribe system. Most existing algorithms are based on counting satisfied component constraints in each subscription. As the scale of a system grows, these algorithms inevitably suffer from performance degradation...
Content-based publish/subscribe systems have been employed to deal with complex distributed information flows in many applications. It is well recognized that event matching is a fundamental component of such large-scale systems. Event matching is to search in a space which is composed of all subscriptions. As the scale and complexity of a system grow, the efficiencies of event matching become more...
To improve the precision of equivalent plane method used to calculate structural system reliability, the concept of multiple correlation was adopted to structural reliability analysis, and multiple correlation-equivalent plane method was presented. With the multiple correlation coefficients which express the correlation between equivalent plane and other limit state surfaces, this method solves the...
The capability of an intelligent services system is based on a set of services processes, which are often organized into and managed by a process library. In order to react to a outside requirement, the system takes one of the approaches of using a predefined process directly, composing existing process models or generating a new process model based on a search algorithm on demand. Therefore, to decide...
On the basis of analysis of water quality assessment methods, an aggregative index number model in water quality evaluation is put forward in this paper. There are totally six indexes selected as evaluation parameters in this model, including DO, potassium permanganate, BOD5, NH3-N, total quantity of phosphorus and total quantity of nitrogen. Besides, this model fully considers their differences existed...
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