Jing-Chiou Liou

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For task clustering with no duplication, the DSC algorithm of Gerasoulis and Yang is empirically the best known algorithm to date in terms of both speed and solution quality. The DSC algorithm is based on the critical path method. In this paper, we present an algorithm called CASS-II for task clustering with no duplication which is competitive to DSC in(More)
This paper demonstrates the effectiveness of the two-phase method of scheduling, in which task clustering is performed prior to the actual scheduling process. Task clustering determines the optimal or near-optimal number of processors on which to schedule the task graph. In other words, there is never a need to use more processors (even though they are(More)
In this paper, we present an efficient algorithm, called CASS-II, for task clustering without task duplication. Unlike the DSC algorithm, which is empirically the best known algorithm to date in terms of both speed and solution quality, CASS-II uses only limited ``global'' information and does not recompute the critical path in each refinement step.(More)
Authentication is the process of verifying a user's identity when the user is requesting services from any secure IT system. By far, the most popular authentication is a basic username-password based method that is commonly considered to be a weak technique of authentication. A more secure method is the multi-factor authentication that verifies not only the(More)
The thesis of this research is that the task of exposing the parallelism in a given application should be left to the algorithm designer, who has intimate knowledge of the application characteristics. On the other hand, the task of limiting the parallelism in a chosen parallel algorithm is best handled by the compiler or operating system for the target MPP(More)
During the last decade, software engineering researchers have tried to identify the success and obstacle factors to the software development. Conclusions from many of the researches related to the issue show that software process is one of the most important subjects contributing into the success or failure to the software development. Among the Capability(More)