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A computer-aided monitoring strategy for flexible assembly operations is presented. This strategy uses knowledge-based expert systems for error detection and diagnosis. The hierarchy of the system is embedded in a blackboard control structure to facilitate parallel, asynchronous communication and to enhance the flexibility of the system. The developed detection and diagnosis modules of the system...
Empirical studies have shown that the performance of decision tree induction usually improves when the trees are pruned. Whether these results hold in general and to what extent pruning improves the accuracy of a concept have not been investigated theoretically. This paper provides a theoretical study of pruning. We focus on a particular type of pruning and determine a bound on the error due to...
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