Author

Ryum-Duck Oh

2 articles in our journals

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Research ArticleOpen accessA Study of the Production Rules for Context Inference of Wetland Water Quality on Ubiquitous Sensor Network Middleware FrameworkSo-Young Im, Ryum-Duck OhProblem statement: With gradually increasing movement to live together with nature, artificial wetlands are increasing as well. And the wind of change blows at the rivers and streams, thereby increasing the need for management systems. Conclusion/Recommendations: Accordingly, this study aims to design production rules for wetland environment context inference and establish application system by using JESS and the rule-based system … …Journal of Computer Science, Vol. 8, Issue 3 · 13 Jan 2012 · 6,853 accessesView PDF Cite

Research ArticleOpen accessEfficient Sensor Stream Data Processing System to use Cache Technique for Ubiquitous Sensor Network Application ServiceJun-Yong Park, Ryum-Duck OhProblem statement: For the purpose of supporting application services in the Ubiquitous Sensor Network (USN) environment, efficient processing of stream data that occur in the sensor nodes and relevant utilization technologies are being studied. Approach: The conversion of various sensor stream data that occur in the sensor nodes into sensor data suitable for use in the upper-level application system is … …Journal of Computer Science, Vol. 8, Issue 3 · 9 Jan 2012 · 6,874 accessesView PDF Cite