Alexander J. Pasik

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Set-oriented constructs for forward chaining rule-based systems are presented in this paper. These constructs allow arbitrary amounts of data to be matched and changed within the execution of a single rule. Second order tests on the data can be included in the match. The ability of a single rule to directly access all of the data to be manipulated(More)
Rule-based systems have been hypothesized to contain only minimal parallelism. However, techniques to extract more parallelism from existing systems are being investigated. Among these methods, it is desirable to find those which balance the work being performed in parallel evenly among the rules, while decreasing the amount of work being performed(More)
The structure and organization of expert systems can be usefully modeled after corresponding human experts. Often this modeling degrades because of insufficient expressive power in production system languages. Relational table techniques provide additional abstraction capabilities and are useful in extending the expressiveness of production system rules;(More)
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