3 results for “Cheonshik Kim”

Research ArticleOpen accessIn the author namesModules Over Rings of Small Characteristics and Maximality of Data Hiding ratio in CPTE SchemesPhan Trung Huy, Cheonshik Kim, Nguyen Hai ThanhIntroduced CPT scheme as a block-based hiding scheme based on the ring of the integers modulo 2r, which permits to embed r = ⌊log2(k+1)⌋ secret bits in F by changing at most two entries, while the highest number of secret bits in any CPT-based schemes is MSDR2 = ⌊log2(1+k (k+1)/2)⌋, approximately 2r-1. This ratio can be reached approximately in our … …American Journal of Applied Sciences, Vol. 10, Issue 9 · 24 Aug 2013 · 6,706 accessesView PDF Cite

Research ArticleOpen accessIn the author namesTraffic Signal Using Smart Agent SystemCheonshik Kim, You-Sik HongIn this research, we propose an electro-sensitive traffic light using the smart agent algorithm to reduce traffic congestion and traffic accidents. The multi-agent system approach can provide a new and preferable solution. The proposed method adaptively controls the cycle of traffic signals even though the traffic volume varies. Consequently, we reduce the car waiting time and start-up delay time using … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 6,957 accessesView PDF Cite