Article history: Received 9 November 2007 Received in revised form 17 March 2008 Accepted 3 April 2008 Available online 6 April 2008

A resource typically executes a particular activity on a series of cases. When a resource performs an activity on several cases simultaneously, (quasi-) sequentially or concurrently, this is referred to as batch processing. Given its influence on process performance, batch processing needs to be taken into account when modeling business processes for performance evaluation purposes. This paper ...

The overhead of processing fine-grain tasks on a grid induces the need for batch processing or task group deployment in order to minimise overall application turnaround time. When deciding the granularity of a batch, the processing requirements of each task should be considered as well as the utilisation constraints of the interconnecting network and the designated resources. However, the dynam...

The TREC-8 ltering track measures the ability of systems to build persistent user prooles which successfully separate relevant and non-relevant documents. It consists of three major subtasks: adaptive ltering, batch ltering, and routing. In adaptive ltering, the system begins with only a topic statement and must learn a better proole from on-line feedback. Batch ltering and routing are more tra...

An algorithm for data condensation using support vector machines (SVM’s) is presented. The algorithm extracts data points lying close to the class boundaries, which form a much reduced but critical set for classification. The problem of large memory requirements for training SVM’s in batch mode is circumvented by adopting an active incremental learning algorithm. The learning strategy is motiva...

Computing resources which are transparently available to the user via networked environments are commonly called a metacomputer. In this sense, a metacomputer is a network of heterogeneous, computational resources linked by software in such a way that they can be used as easily as a single computational unit. During the last few years our work has been concentrated on developing methods and too...

The issues of waste generation in batch process plants differ in many aspects to continuous plants. Despite the smaller-scale of processing, complexities from unsteady state profiles, discontinuities, and run-to-run variations make waste minimization in batch plant more challenging. In this paper, we present a systematic methodology for waste minimization analysis of a batch process. The method...

In order to successfully ablate moving tumours in robotic radiosurgery, respiratory motion prediction is needed to compensate time delays. In this context, recent studies revealed a high potential of support vector regression (SVR). However, high computational cost is one major drawback, particularly caused by batch mode training. We evaluate two approaches to reduce the update rate as well as ...