Hangkyu Kim

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For efficiently managing Web Services (WS) transactions which are executed across multiple loosely-coupled autonomous organizations, isolation is commonly relaxed. A Web services operation of a transaction releases locks on its resources once its jobs are completed without waiting for the completions of other operations. However, those early unlocked(More)
For efficiently managing Web Services (WS) transactions which are executed across multiple loosely-coupled autonomous organizations , isolation is commonly relaxed. A Web service operation of a transaction releases locks on its resources once its jobs are completed without waiting for the completions of other operations. However, those early unlocked(More)
—Community structure is one of the most important and characteristic features of social networks. Numerous methods for discovering implicit user communities from a social graph of users have been proposed in recent years. However, most of them have performance and scalability issues which make them hardly applicable to population-wide analysis of modern(More)
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