An Efficient Adaptive Bitmap-based Selective Tuning Scheme for Spatial Queries in Broadcast Environments. - Doohee Song; Kwangjin Park (KSII Trans. Internet Inf. Syst., 2011)

A Privacy-Preserving Continuous Location Monitoring System for Location-Based Services. - Doohee Song; Jongwon Sim; Kwangjin Park; MoonBae Song (Int. J. Distributed Sens. Networks, 2015)

Adaptive hierarchical bitmap-based index for wireless broadcast environments in an emergency. - Doohee Song; Kwangjin Park (Comput. Syst. Sci. Eng., 2016)

A partial index for distributed broadcasting in wireless mobile networks. - Doohee Song; Kwangjin Park (Inf. Sci., 2016)

A Privacy-Preserving Location-Based System for Continuous Spatial Queries. - Doohee Song; Kwangjin Park (Mob. Inf. Syst., 2016)

A Privacy-Preserving Spatial Index for Spatial Query Processing. - Doohee Song; MoonBae Song; Kwangjin Park (Wirel. Commun. Mob. Comput., 2018)

Efficient dummy generation for considering obstacles and protecting user location. - Doohee Song; MoonBae Song; Vladimir V. Shakhov; Kwangjin Park (Concurr. Comput. Pract. Exp., 2021)