• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.3
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• pp.359-368
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• 2014

Recently, to reflect the context between transactions, the intertransaction association rule mining has been study. In this study, we present two problems that is within intertransaction association rule mining method and suggest the methods to solve this problems. First, we suggest an algorithm to reflect changes on data between transactions. Second, we propose the method to solve the unfairly considered frequency of data when intertransactions is generate with transactions. We make more meaningful rules than previous researches. We present the experiment result with measured data from the marine environment.

• Journal of Korea Multimedia Society
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• v.6 no.4
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• pp.583-593
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• 2003

Engineering design applications require the support of long transactions in cooperative environments. The problem of the existing copy/update/merge approaches is that the partial effects of a committed transaction may be not part of the merged version. This paper introduces a new cooperative transaction model, which allows updates to be progressively notified or propagated into other transactions accessing the same object. To support incremental update propagation and notification, we use the term dynamic dependency to define the intertransaction dependency relationships among all the objects checked out from the public database. Consistency in multiple copies of the same object is achieved by a two-phase delta-merge protocol. Our model provides a synchronization of cooperative updates performed in several workspaces without using locking mechanisms.