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A Petri-net-based framework for representing and retrieving conception in case-based document writing

Case-based document writing encounters inefficiency and incompleteness due to the use of explicit index-terms. We propose a Petri-net framework which represents and retrieves the semantic concepts of cases for document writing. In our approach, cases of documents are represented as Petri nets according to their semantic concepts. New documents can be made efficiently and completely by retrieving the conceptions of cases.