Research
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Boseon Yu, Hyunduk Kim, Wonik Choi, Dongseop Kwon, "Accelerating Range Query Processing on R-Tree using Graphics Processing Units," IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, E96-D권 12호, pp2776~2785, 2013.
Heemin Park, Young-Jun Lee, Jinseok Chae, Wonik Choi, "Online Approach for Spatio-Temporal Trajectory Data Reduction for Portable Devices," JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY, 28, pp597~604, 2013.
Hyunduk Kim, Boseon Yu, Wonik Choi, Heemin Park, "Energy-Efficient Clustering Scheme in Wireless Sensor Networks that Considers Sensor Node Structure," IEICE TRANSACTIONS ON COMMUNICATIONS, E95B권 8호, pp2646~2649, 2012.
Hyunduk Kim, Boseon Yu, Wonik Choi, "Distance Based Energy Efficient Clustering Method in Wireless Sensor Networks" EDB2012, 2012.
Hyunduk Kim, Boseon Yu, Wonik Choi, Heemin Park, "Energy-efficient Clustering Scheme in Wireless Sensor Networks that Considers Sensor Node Structure," IEICE Transactions 95-B(8), 2012.(SCI)
Wonik Choi, Ling Liu, Boseon Yu, "Multi-Criteria Decision Making with Skyline Computation," IRI2012, 2012.   
Boseon Yu, Hyunduk Kim, Wonik Choi, Dongseop Kwon, "Parallel Range Query Processing on R-Tree with Graphics Processing Units," CSN2011, 2011.
Mincheol Kim, Wonik Choi, "G-tree : GPU Sensitive R-tree for Efficient Parallel Processing of Range Queries," EDB2011, 2011.
Hyunduk Kim, Boseon Yu, Wonik Choi, "Energy Efficient Clustering Scheme in Wireless Sensor Network Based on Tree Balancing Algorithms," EDB2010, 2010.
Hyunduk Kim, Boseon Yu, Wonik Choi, Moonju Park, Jinseok Chae, "Distance based Pre-cluster Head Selection Scheme for Chain-Based Protocol," CIT2009, pp.110-115, 2009.
Minho Seo, Wonik Choi, Yoo-Sung Kim, Jaehyun Park, "Lifetime Prediction Routing Protocol for Wireless Sensor Networks," IEICE Transactions 90-B(12), pp.3680-3681, 2007.(SCI)
Wonik Choi, Hyunduk Kim, Jinsu Kim, Jinseok Chae, "A Context-Aware Framework for Mobile Navigation Service," CIT 2007, pp.423-428, 2007.
Dongseop Kwon, Wonik Choi, Sangjun Lee, "An Inverted Index-Based Buffered Search Algorithm for Mobile Navigation Services," FGCN 2007, pp.488-493, 2007.
Seonggu Kang, Jaehwan Kim, Jinseok Chae, Wonik Choi, Sangjun Lee, "Similarity Search Using the Polar Wavelet in Time Series Databases," ICIC 2007, pp.1347-1354, 2007.
Wonik Choi, Jinseok Chae,Mee Young Sung, "A Cost Model for an Adaptive Cell-Based Index Structure," LECTURE NOTES IN COMPUTER SCIENCE, LNCS 4263, pp.774~782, 2006.(SCIE)
Mee Young Sung,Jong-Seung Park, Wonik Choi, "Parallel Processing for Reducing the Bottleneck in Realtime Graphics Rendering," LECTURE NOTES IN COMPUTER SCIENCE, LNCS 4261, pp.943~952, 2006.(SCIE)
Wonik Choi, Dongseop Kwon and Sangjun Lee, "Spatio-Temporal Data Warehouses Using An Adaptive Cell-based Approach," Data & Knowledge Engineering, 2005. (SCIE)
Dongseop Kwon, Sangjun Lee, Wonik Choi, Sukho Lee, "An Adaptive Hashing Technique for Indexing Moving Objects ," Data & Knowledge Engineering, 2005. (SCIE)
Sangjun Lee, Kyoungsu Oh, Dongseop Kwon, Wonik Choi, Jiman Hong, Jongmoo Choi, Donghee Lee, "Efficient Pattern Matching of Multidimensional Sequences ," Lecture Notes in Artificial Intelligence (LNAI), Vol. 3642, Springer-Verlag, pp.202-210, Sept. 2005. (SCIE)
Dongseop Kwon, Sangjun Lee, Wonik Choi, Sukho Lee, "Adaptive Multi-Level Hashing for Moving Objects ," Lecture Notes in Computer Science (LNCS), Vol. 3453, Springer-Verlag, pp.928-933, April 2005. (SCIE)
Wonik Choi, Bongki Moon and Sukho Lee, "Adaptive Cell-based Index for Moving Objects," Data & Knowledge Engineering(DKE), 2004. (SCIE)
Wonik Choi, Sukho Lee, "Efficient OLAP Operations in Spatio-Temporal Data Warehouses," In Proceedings of IASTED International Conference on Software Engineering and Applications, 2003 .